The Complete List of Suppliers for Gramine

CAS No.87-52-5 Gramine

Assay:98% Appearance:detailed see specifications Package:according to the clients requirement Storage:Store in dry, dark and ventilated place. Transportation:by sea or by air Application:It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff. 

Min. Order:1Kilogram

Supplier:Dayang Chem (Hangzhou) Co.,Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine,87-52-5

Assay:99% Appearance:white powder Package:normal packing Storage:stored in a cool, dry and ventilated place Transportation:sea Application:Pharmaceutical Intermediates, OLED Intermediates 

Min. Order:1Kilogram

Supplier:HENAN NEW BLUE CHEMICAL CO.,LTD [ China (Mainland)]

CAS No.87-52-5 3-(dimethylaminomethyl)indole

Assay:99%min. Appearance:white powder Package:1kg/Export worthy packing; 25kg/drum Storage:In well-closed container, protected from light and in cool & dry place. Transportation:By Air, By Sea, By courier (door to door, DHL/FedEx/UPS) Application:R&D and production for pharmaceuticals and chemicals 

Min. Order:1Gram

Supplier:LIDE PHARMACEUTICALS LIMITED [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% purity Appearance:Beige powder Package:According to the need to packing Storage:sealed,dry,low temperature Transportation:air,sea and courier Application:intermediate 

Min. Order:1Gram

Supplier:Shanghai Minstar Chemical Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Package:according to customer requirements Transportation:By Sea/Air/Courier Application:It is an important raw material. 

Min. Order:10Gram

Supplier:Zibo Hangyu Biotechnology Development Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Best Quality Gramine

Assay:99% Appearance:Leaf-like or needle-like crystalline powder Package:25kg/drum Storage:Cool and dry place Transportation:by sea or by air, express for small quantity Application:CAS: 87-52-5 

Min. Order:1Kilogram

Supplier:Siwei Development Group Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:white powder Package:According to the customer's requestment Storage:Store in dry, dark and ventilated plac... Transportation:Fast! Safe! Promise 100% safe and successful transportation. Door to door transportation services. Application:Pharmaceutical intermediates 

Min. Order:1Kilogram

Supplier:Zibo Dorne chemical technology co. LTD [ China (Mainland)]

CAS No.87-52-5 Gramine CAS:87-52-5

Assay:99% Appearance:White powder Package:In plastic outside weave or according to your request Storage:Store at RT. Transportation:We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker.? Application:Used for content determination, identification, pharmacological experiment, activity screening, etc  

Min. Order:1Kilogram

Supplier:Hebei Nengqian Chemical Import and Export Co., LTD [ China (Mainland)]

CAS No.87-52-5 High quality Gramine supplier in China

Assay:99% Appearance:white-off powder or granule ( referto COA) Package:25kgs/fiber drum Storage:Keep in a cool & dry place Transportation:by sea or by air Application:Pharma intermediate 

Min. Order:0Metric Ton

Supplier:Simagchem Corporation [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99.0% Appearance:liquid Package:Grams, Kilograms Storage:Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials. Transportation:According to customer request Application:For R&D and commerical use 

Min. Order:100Gram

Supplier:Chemlyte Solutions [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:White fine powder Package:according to the clients requirement Transportation:Transportation by express, air, sea; port mainly to Qingdao / Tianjin / Shanghai, or according to customer needs to send different ports and aviation. Application:An important raw material and intermed 

Min. Order:1Kilogram

Supplier:Shandong Hanjiang Chemical Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay: 98%Min Appearance:Detailed in specifications Package:According to customer  Storage:Store in dry, dark and ventilated place Transportation:By air or by sea  Application:An important raw material and intermediate used in organic Synthesis, Pharmaceuticals  

Min. Order:1Kilogram

Supplier:TAIZHOU ZHENYU BIOTECHNOLOGY CO., LTD [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:White Powder Package:25kg/drum, also according to the clients requirement Storage:Store In Dry, Cool And Ventilated Place Transportation:By Sea Or By Air Application:It is widely used as a thickener, emulsifier and stabilizer 

Min. Order:1Kilogram

Supplier:EAST CHEMSOURCES LIMITED [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99%min. Appearance:White or off-white crystal Package: 25kg/drum, or as per your request. Storage:Store in dry and cool place with good seal Transportation:by courier,by Air,by Sea ... Application:Fine Chemical Intermediates 

Min. Order:10Gram

Supplier:Wuhan Kemi-Works Chemical Co., Ltd [ China (Mainland)]

CAS No.87-52-5 1H-Indole-3-methanamine,N,N-dimethyl-

Assay:99% Appearance:beige powder Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Storage:Stored in cool, dry and ventilation place; Away from fire and heat Transportation:as per your request Application:The goods is intermediates for the synthesis of tryptophan. 

Min. Order:1Kilogram

Supplier:HANGZHOU YUNUO CHEMICAL CO.,LTD [ China (Mainland)]

CAS No.87-52-5 High Purity Gramine 87-52-5

Assay:99.5%  Appearance:white or almost white crystalline powder Package:Pack & Store:25kg cardboard barrels lined with plastic bags; or otherwise customized Storage:In cool ,dry place Transportation:Preservce in well-closed containers, prptected from light, Application:USP34 Or EP STANDERUsed as Antibiotic and Antimicrobial Agents 

Min. Order:100Kilogram

Supplier:Lonwin Chemical Group Limited [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:鈮?8% Appearance:powder Package:BAG Storage:In cool ,dry place Transportation:Air or sea freight Application:for pharma use 

Min. Order:1Kilogram

Supplier:Qingdao Chengyuan Kaisheng Industry and Trade Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:NLT 98% Appearance:White powder Package:Aluminum bag/Carton Drum Storage:Store in a tightly closed container, in a cool and dry place. Transportation:By air Application:Used in producing API 

Min. Order:0

Supplier:Hangzhou Huarong Pharm Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:98% or more Appearance:high quality Package:5kg 25kg According to clients' requirement Storage:Store in dry, dark and ventilated place Application:Intermediate and Industrial use 

Min. Order:0Metric Ton

Supplier:Hangzhou Keyingchem Co.,Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine manufacture

Assay:99% Appearance:Detailed see specifications Package:According to client's requirements Storage:Sealed and preserved Transportation:By sea/By air/By courier Application:fine chemicals,intermeidates 

Min. Order:0

Supplier:Hangzhou ZeErRui Chemical Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 3-DiMethylaMinoMethylindole

Assay:0.98 Appearance:Off white to slight yellow solid Package:1L 5L 10L 25L bottle Storage:Stored in shaded, cool and dry places Transportation:Handle with cares to avoid damaging the packages. Protect them from sunshine or rain. We can send by Fedex, by ship or by plane according to international rules. Application:pharma intermediate 

Min. Order:0

Supplier:Antimex Chemical Limied [ China (Mainland)]

CAS No.87-52-5 Indol-3-ylmethyldimethylamine

Assay:98%, 99% Appearance:Refer to COA Package:According to clients' requirement Storage:Store in dry, cool and ventilated place Transportation:By sea or by air or by courier Application:As organic intermediates, chemical reagents and etc. 

Min. Order:0

Supplier:Hangzhou Ocean Chemical Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 3-(DIMETHYLAMINOMETHYL)INDOLE

Assay:99% Appearance:detailed see specifications Package:according to the clients requirement Storage:Store in dry, dark and ventilated place. Transportation:by sea or by air Application:An important raw material and intermediate used in Organic Synthesis, Pharmaceuticals 

Min. Order:1Gram

Supplier:Afine Chemicals Limited [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:beige powder Package:25kg/Barrel Storage:ln stock Transportation:Express/Sea/Air Application:Chemicals 

Min. Order:0

Supplier:Hangzhou Sartort Biopharma Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Storage:Sealed and preserved Transportation:By sea Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents 

Min. Order:0

Supplier:Qingdao Beluga Import and Export Co., LTD [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:98% Application:intermediate 

Min. Order:0

Supplier:SAGECHEM LIMITED [ China (Mainland)]

CAS No.87-52-5 Donaxine

Assay:99% Appearance:Solid Storage:Protect from light and keep dry Application:Pharmaceutical intermediates 

Min. Order:0

Supplier:ORCHID CHEMICAL SUPPLIES LTD [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:98%min Package:25kg/drum,or as per customers'demand Transportation:air,sea,courier Application:API,Pharmaceutical intermediates 

Min. Order:0

Supplier:GIHI CHEMICALS CO.,LIMITED [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:98%min Package:20mg Application:The refence standard products, for lab use, also we could produce bigger quantity on yr requirement. 

Min. Order:0

Supplier:Hangzhou Dingyan Chem Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Donaxine

Assay:98%min Appearance:Off-white to light yellow powder Package:According to the clients requirement. Storage:Keep in cool place. Transportation:Sea/air/courier Application:Pharmaceutical intermediates 

Min. Order:0

Supplier:Hangzhou J&H Chemical Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 GramineCAS NO.: 87-52-5

Assay:99% Appearance:liquid Package:drum Storage:common Transportation:Meet buyer's delivery Application:intermediate 

Min. Order:1Gram

Supplier:Henan Wentao Chemical Product Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:95%-98% Appearance:24512-62-7 Package:Brown vial HDPE plastic bottle Storage:Store in dry, dark and ventilated place Application:24512-62-7 

Min. Order:0Metric Ton

Supplier:Chengdu Biopurify Phytochemicals Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99.0% min Appearance:Highest quality appearance Package:25kgs/drum锛?00kg/drum锛汭BC TANK Storage:Keep in dry and well ventilated warehouse, keep sealed Transportation:By air and by sea Application:Extremely good quality, widely used in Pharmaceutical Industry, Food Industry, agricultural industry etc. 

Min. Order:1Kilogram

Supplier:Hangzhou Johoo Chemical Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Hot sale cheap price CAS 87-52-5 Gramine

Assay:99% Appearance:white powder Package:BAG Storage:Store in cool, dry and ventilated place Transportation:DHL, Fedex, UPS, TNT, China post, BY AIR, BY SEA 

Min. Order:1Kilogram

Supplier:Hebei Jinshengzhongtai Industry Co.,Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Package:box or opp package Storage:cool drum  Transportation:air or sea Application:Gramine 

Min. Order:1Milligram

Supplier:weifang yangxu group co.,ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:98% Appearance:Transparent to light yellow liquid Package:Safe Packaging Storage:Store in RT Transportation:By sea or air as request Application:api 

Min. Order:1Kilogram

Supplier:Hubei Shengliyuan New Materials Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:鈮?9.0% Appearance:White powder Package:25kg drum/bag Storage:Keep in dry and cool place Transportation:by Sea, air and express Application:銆?Use 1 銆? A nutritional supplement. One of the essential amino acids in the human body. Because the price is higher than DL-methionine and the effect is equal, DL-methionine is often used. 銆?Use  

Min. Order:1Metric Ton

Supplier:KAISA GROUP INC [ United States]

CAS No.87-52-5 3-indole

Assay:98% Package:25 kgs Packed in Drum,small order in carton Packing Storage:Store in cool and dry place, away from Sun light. Transportation:By Express,By Sea or by Air Application:APIs 

Min. Order:1Kilogram

Supplier:Xi'an HDM Biotech Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:detailed see specifications Package:25kg/drum;200kg/drum Storage:Keep away of light, cool place Transportation:Sea/air/courier Application:Chemical synthesis 

Min. Order:0

Supplier:Xiamen Hisunny Chemical Co.,Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine CAS No:87-52-5

Assay:HPLC鈮?8% Package:Brown vial HDPE plastic bottle Transportation:by air Application:the product is only used for scientific research experiments and should not be used for human injection, food or other purposes. This solution must be freshly prepared before using to avoid degrad... 

Min. Order:0

Supplier:Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99 Appearance:powder, or liquid Package:Bottle, barrel, cargo, container, etc. Storage:Stored in room temperature, ventilated place Transportation:By air, ship, express, etc. Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals 

Min. Order:0

Supplier:LEAP CHEM Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:white powder Package:25kg,50kg,180kg,200kg,250kg,1000kg锛宑ustomization Storage:Keep it in dry,shady and cool place Transportation:by express or by sea Application:Pharma;Industry;Agricultural;chemical reaserch 

Min. Order:0

Supplier:Wuhan Circle Star Chem-medical Technology co.,Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:95%+ or 98%+ Appearance:solid Package:10mg/25mg/50mg/100mg/1000mg/5000mg Storage:short-term storage normal temperature. long-term storage 2-8 鈩?nbsp;Transportation:express and sea transport and air freight Application:for drug impurities, for drug standards,for drug research and development 

Min. Order:0

Supplier:Hubei Moxin Biotechnology Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:COA Appearance:COA Storage:in stock Application:MSDS/TDS 

Min. Order:0

Supplier:Aecochem Corp. [ China (Mainland)]

CAS No.87-52-5 鈮?8% high purity high quality custom manufacturing natural extract Gramine 87-52-5

Assay:鈮?8% by HPLC Application:Herbal extracts 

Min. Order:0

Supplier:Sinoway Industrial Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Factory Supply Gramine

Assay:99.9% Appearance:Refer to COA Package:drum Storage:keep in cool and dry place Transportation:by sea or by air Application:Intermediates and materials 

Min. Order:1

Supplier:Ality Chemical Corporation [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:powder/liquid Package:According to client's requirements Storage:Store in dry, dark and ventilated place. Transportation:by sea/by air/by express Application:pharmaceutical intermediates 

Min. Order:1Gram

Supplier:Hangzhou KieRay Chem Co.,Ltd. [ China (Mainland)]

CAS No.87-52-5 Top Purity CAS 87-52-5 with fast shipping

Assay:99% Appearance:White powder Package: [Packaging]20mg, 50mg,100mg,1g,10g,100g,according to customers' requirements Storage: should be stored in a well-closed container at low temperature, keep away from moisture, heat and light. Transportation:1. Samples 1kg-10kg are shipped by international express. 2. 50kg-100kg of goods are transported by dedicated line logistics. 3. Cargo 100kg-1ton is transported by dedicated line logistics. Application:Raw materials in the pharmaceutical field 

Min. Order:10Kilogram

Supplier:Zhuozhou Wenxi import and Export Co., Ltd [ China (Mainland)]

CAS No.87-52-5 High Quality Gramine

Assay:99%min Appearance:white powder Package: according to customers' requirements Storage:Refrigerator (+4掳C) Transportation:Air, sea, land transport Application:Used in the preparation of dopamine D2 receptor antagonists, anti-malarial drugs, 5-indomethyl-Mannich bases, proliferating inhibitors, human mast cell gastronatase inhibitors, DL-tryptophan, potentia 

Min. Order:1Kilogram

Supplier:Baoji Guokang Healthchem co.,ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:liquid or powder  Package:according to the clients requirement Storage:Dry and Cool Place  Transportation:UPS FedEx ,DHL,EXPRESS LINE Application:healing drugs 

Min. Order:1Gram

Supplier:Shandong Mopai Biotechnology Co., LTD [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:white powder Package:drum or based on customers' requirement Storage:normal temperature storage Transportation:by sea, by air Application:We have different specifications for different applications 

Min. Order:1Metric Ton

Supplier:Bluecrystal chem-union [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Haccp,,Halal,SC US FDA GMP ISO14001 Appearance:As per Certificate of analysis and our TDS, MSDS Package:Export standard and according to the clients requirement Storage:Store in dry, dark and ventilated place;ISO / Kosher /GMP licence commercial bulk capacity factory in China Transportation:By AIR or by SEA GMP licence / US-FDA,South Korea-KFDA Application:It is an important raw material and intermediate for chemical industry. 

Min. Order:5Kiloliter

Supplier:Chemwill Asia Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:97% Appearance:Powder or liquid Package:According to customer Storage:Store in a tightly closed container, in a cool and dry place. Transportation:Fedex,DHL,TNT,BY SEA and BY AIR Application:Medicinal Chemistry Biomedicine Pharmaceutical intermediates Chemistry experiment Biological experiments Chemical reagent For R&D use only. 

Min. Order:10Milligram

Supplier:Amadis Chemical Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:98% Appearance:detailed see specifications Package:according to the clients requirement Storage:Store in dry, dark and ventilated place Transportation:by ocean shipping or clients requirement Application:An important raw material and intermediate used in Organic Synthesis, Pharmaceuticals 

Min. Order:0

Supplier:Cartoon Ingredients Co., Ltd [ China (Mainland)]

CAS No.87-52-5 3-indole

Assay:99% Min Appearance:solid Package:1kg/Aluminum foil bag with one plastic-bags inside.10kg/Carton Box with plastic-bags inside.25kg/Paper-drum with two plastic-bags inside. Storage:Sealed in dry,Room Temperature Transportation:by air, by sea, cargo Application:Pharmaceutical Intermediate 

Min. Order:1Metric Ton

Supplier:Falcon Life Sciences Pvt. Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Appearance:White to light yellow to light orange fluffy powder Package:according to your requirement Storage:White to light yellow to light orange fluffy powder Transportation:by air /by train/by sea Application:lab 

Min. Order:1Kilogram

Supplier:Jiangsu Xinsu New Materials Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Acmec Gramine G22860 20mg

Assay:Analysis control,鈮?8% Appearance:See the datasheet Package:20mg Storage:2-8掳C Transportation:By Express, Air and Road Application:Analytical reagent, biochemical reagent, standard 

Min. Order:1bottle

Supplier:Shanghai Acmec Biochemical Technology Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Package:According to the customer request Transportation:According to the customer request Application:intermediate of Antimicrobial agent and Antioxidant  

Min. Order:100Gram

Supplier:SHANGHAI SYSTEAM BIOCHEM CO., LTD [ China (Mainland)]

CAS No.87-52-5 E-0336 Gramine

Assay:more than 98% Package:10mg,20mg,1g or on request, reagent bottle Storage:-20degree Transportation:ice bag Application:FOR RESEARCH USE ONLY 

Min. Order:0Metric Ton

Supplier:shanghai Tauto Biotech Co., Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine manufacturer

Assay:HPLC鈮?8% Appearance:white powder Package:According client's requirements Storage:keep sealed and keep from direct light Transportation:by express or by sea Application:pharmaceutical 

Min. Order:0

Supplier:Shanghai Yuanye Bio-Technology Co., Ltd. [ China (Mainland)]

CAS No.87-52-5 Gramine 87-52-5

Assay:98.0% Appearance:solid or liquid Package:Foil bag; Drum; Plastic bottle Storage:in sealed air resistant place Transportation:by sea or air Application:Pharma;Industry;Agricultural 

Min. Order:0

Supplier:Hunan Russell Chemicals Technology Co.,Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine CAS No.87-52-5

Assay:99.90% Appearance:solid or liquid Package:As customer's requested Storage:sealed in cool and dry place Transportation:by courier/air/sea Application:Pharma Intermediate 

Min. Order:0

Supplier:Guangdong Juda Chemical Industrial Co.,Limited [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:High purity Appearance:Powder Package:1kg/tin 5kg/tin 25kg/carton Storage:Store in dry, cool and ventilated place Transportation:By sea By air By courier Application:Use in healthcare products. Use in food products. Use in Cosmetic products. 

Min. Order:0

Supplier:Asure Biochem CO.,LTD. [ China (Mainland)]

CAS No.87-52-5 Gramine

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require 

Min. Order:0

Supplier:Hunan chemfish Pharmaceutical co.,Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine Cas no.87-52-5 98%

Assay:98% Package:Grams, Kilograms Transportation:According to customer request Application:For R&D 

Min. Order:0

Supplier:Win-Win chemical Co.Ltd [ China (Mainland)]

CAS No.87-52-5 Gramine

Assay:99% Application:Industrial use 

Min. Order:0

Supplier:Yinglang Chemical Company [ China (Mainland)]

CAS No.87-52-5 Gramine

Min. Order:0

Supplier:BOC Sciences [ United States]

CAS No.87-52-5 GraMine

Assay:98% Package:According to the demand of customer Storage:Sealed, dry, microtherm , avoid light and smell. Transportation:by air or by sea Application:Organic synthesis 

Min. Order:0

Supplier:Henan Allgreen Chemical Co.,Ltd [ China (Mainland)]

• Cartoon Ingredients Co., Ltd
• Dayang Chem (Hangzhou) Co.,Ltd.
• Hangzhou Ocean Chemical Co., Ltd.
• Wuhan Kemi-Works Chemical Co., Ltd
• Xiamen Hisunny Chemical Co.,Ltd
• BOC Sciences