1,3:2,4-Di-p-methylbenzylidene sorbitol(54686-97-4)
- Name: 1,3:2,4-Di-p-methylbenzylidene sorbitol
- Synonyms:1,3:2,4-Di-p-methylbenyliedene sorbitol;
- Molecular Formula:C22H26O6
- Molecular Weight:386.44
- CAS Registry Number:54686-97-4
- EINECS:405-870-9
- Melting Point:255-262 °C
- Water Solubility:<0.01 g/100 mL at 20 °C in water
CAS No.54686-97-4 Bis(p-methylbenzylidene)sorbitol supplier in China
Assay:98% Appearance:White powder 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)]
Assessed
SupplierTel:+86-571-88938639
Address:9/F, Unit 2 Changdi Torch Building, 259# WenSan Road, Xihu District, Hangzhou City 310012, P.R.China
- Contact Suppliers
CAS No.54686-97-4 Nucleating agent DY-2
Assay:Millad 3940 Appearance:White powder Package:25kg net/paper drum Storage:Rom tep. Transportation:By courier, air or sea. Application:intermediate for organic synthesis
Min. Order:1Metric Ton
Supplier:Hangzhou Dingyan Chem Co., Ltd [ China (Mainland)]
Assessed
SupplierTel:86-571-87157530-8001
Address:RM.1118,NO.1 Building, Baiyun Tower,Jianggan Area, Hangzhou city, China,310004
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Assessed
SupplierTel:86-15965530500
Address:Room1701, Tianxing Building,Licheng district, jinan, Shandong, China
- Contact Suppliers
CAS No.54686-97-4 54686-97-4 C22H26O6 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99.5% Appearance:Powder Package:As per customer's Storage:Room temperature Transportation:To be shipped as non-hazardous chemicals Application:Organic Chemical
Min. Order:1Metric Ton
Supplier:HENAN NEW BLUE CHEMICAL CO.,LTD [ China (Mainland)]
Assessed
SupplierTel:86-371-55170693/55170694
Address:Zhengzhou International Trade New Territory,Jinshui District,Zhengzhou ,China
- Contact Suppliers
CAS No.54686-97-4 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)]
Assessed
SupplierTel:+86-25-58409506
Address:11F, Building A1, No.288 North Zhongshan Road, Gulou District, Nanjing,210003, P.R.China.
- Contact Suppliers
CAS No.54686-97-4 Nucleating?agent;1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99% Appearance:detailed see specifications Package:100g/bag,1kg/bag,25kg/drum,according to the clients requirement Storage:Store in dry, dark and ventilated place. Transportation:by air or by ocean shipping Application:An important raw material and intermediate used in Organic Synthesis, Pharmaceuticals
Min. Order:1Gram
Supplier:Hangzhou Zhongqi chem Co.,Ltd. [ China (Mainland)]
Assessed
SupplierTel:0086-571-86976032
Address:Kangkang Gu 1010, Chun xiao road 61,Binjiang District 310052,Hangzhou city , China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol CAS: 54686-97-4
Assay:99 Appearance:Powder Package:fiber can Storage:2-8掳C Transportation:by sea/air/land Application:scientific research
Min. Order:1Kilogram
Supplier:Hebei Nengqian Chemical Import and Export Co., LTD [ China (Mainland)]
Assessed
SupplierTel:+86 13910575315
Address:Congtai District, La Defense North
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Assessed
SupplierTel:15867601896
Address:Room 623 Yulan Square Bussiness Building . Jiaojiang Taizhou Zhejiang 318000 China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Assessed
SupplierTel:15053231572
Address:No.1581-12,Jinshui Road, Licang, Qingdao,China
- Contact Suppliers
CAS No.54686-97-4 Bis(p-methylbenzylidene)sorbitol
Assay:98%min 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)]
Assessed
SupplierTel:+86-571-85378921
Address:Jintong international Building, No.113,Huayuangang Street, Gong shu District, Hangzhou,Zhejiang, China.
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99% Package:25kg/drum Storage:Sealed and preserved Transportation:By sea/By air/By courier Application:Chemical raw materials
Min. Order:0
Supplier:Hangzhou ZeErRui Chemical Co., Ltd. [ China (Mainland)]
Assessed
SupplierTel:+86-571-82512721
Address:No 317,Jingling Road,Guali Town,Xiaoshan District
- Contact Suppliers
CAS No.54686-97-4 54686-97-4 C22H26O6 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99% Appearance:white powder Package:Woven bag Storage:Normal temperature Transportation:Ocean shipping Express delivery Application:Intermediate
Min. Order:0
Supplier:Antimex Chemical Limied [ China (Mainland)]
Assessed
SupplierTel:0086-21-50563169
Address:Room1027,No.Jinyu Road,Pudong
- Contact Suppliers
CAS No.54686-97-4 Nucleating Agent 3940
Assay:99% Appearance:solid or liquid Package:drum and bag Storage:in sealed air resistant place Transportation:by sea or air Application:for pharma use
Min. Order:0
Supplier:Kono Chem Co.,Ltd [ China (Mainland)]
Assessed
SupplierTel:86-29-86107037-8015
Address:No.11 Daqing Road,Lianhu District,Xi鈥檃n 710082,China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:HPLC鈮?8% Appearance:powder Storage:Sealed in dry,Room Temperature Transportation:by express or by sea Application:for pharma use
Min. Order:0
Supplier:Hangzhou Shanyi Biotechnology Co., Ltd. [ China (Mainland)]
Assessed
SupplierTel:s-086-18093761022
Address:Guodu Development Building
- Contact Suppliers
CAS No.54686-97-4 MDBS
Assay:99% Appearance:White powder Package:25kg/drum,or as per customers'demand 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:GIHI CHEMICALS CO.,LIMITED [ China (Mainland)]
Assessed
SupplierTel:+86-571-86217390
Address:No.567 Dengcai Street,Sandun,Westlake District,Hangzhou310030,Zhejiang,China.
- Contact Suppliers
CAS No.54686-97-4 NucleatingAgent3940
Assay:99% Package:25kg/Barrel Storage:ln stock Transportation:Express/Sea/Air Application:Chemicals
Min. Order:0
Supplier:Hangzhou Sartort Biopharma Co., Ltd [ China (Mainland)]
Assessed
SupplierTel:86-571-87039693
Address:No. 57, Tech Park Road, Hangzhou, Zhejiang, China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:98% Package:Grams, Kilograms Transportation:According to customer request Application:For R&D
Min. Order:0
Supplier:Chemlyte Solutions [ China (Mainland)]
Assessed
SupplierTel:+86-189 8945 5137
Address:Jian Qiao Community, 789 Shenhua Road, Xihu District, Hangzhou, China, 310000
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Assessed
SupplierTel:+8613854236000
Address:qingdao
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:鈮?9% Application:Chemical intermediate
Min. Order:0
Supplier:HANGZHOU TIANYE CHEMICALS CO., LTD. [ China (Mainland)]
Assessed
SupplierTel:0571-85083592
Address:1208# HuaCe Building-B,Wuchanggang Road,XIHU District,Hangzhou City,Zhejiang Province ,China
- Contact Suppliers
CAS No.54686-97-4 Bis(p-methylbenzylidene)sorbitol
Assay:99% Appearance:white powder Package:drum Storage:Room temperature Transportation:By Sea/Air/DHL Application:Pharmaceutical intermediates
Min. Order:1Kilogram
Supplier:Henan Wentao Chemical Product Co., Ltd. [ China (Mainland)]
Premium
SupplierTel:+86-370-2722992
Address:32 Room, 5th Floor, Building 11, No. 6 Yinxing Road, High-tech Industrial Development Zone, Zhengzhou City, Henan Province
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenyliedene sorbitol
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)]
Premium
SupplierTel:+86-571-87396432
Address:No.200 Zhenhua Rd.Xihu Industrial Park, Hangzhou 310030, China
- Contact Suppliers
CAS No.54686-97-4 Bis(p-methylbenzylidene)sorbitol
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)]
Premium
SupplierTel:+86-592-3327115
Address:Unit 603,No.879,Xiahe Road,Meixin Building,Xiamen,China
- Contact Suppliers
CAS No.54686-97-4 Bis(p-methylbenzylidene)sorbitol supplier in China cas 54686-97-4
Assay:99%min Appearance:white crystalline powder Package:25KG drum Storage:Store in dry, dark and ventilated place Transportation:by air, by sea, by express Application:intermediate
Min. Order:0
Supplier:Hangzhou Fandachem Co.,Ltd [ China (Mainland)]
Premium
SupplierTel:+86-571-28800458
Address:Room 5010, No.9 YanAn Road,Hangzhou,Zhejiang,China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99% Application:API
Min. Order:0
Supplier:WLP INGREDIENT INC [ China (Mainland)]
Premium
SupplierTel:86-29-88071646
Address:xian
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99% Application:API
Min. Order:0
Supplier:Hebei Muhuang Technology Co., Ltd [ China (Mainland)]
Premium
SupplierTel:+8618332173750锛?8613191862208
Address:鐭冲搴勬ˉ瑗垮尯浠佸拰鍢夊洯3鍙锋ゼ1鍗曞厓702
- Contact Suppliers
CAS No.54686-97-4 China Biggest Factory Manufacturer Supply 1,3:2,4-Di-p-methylbenzylidene sorbitol CAS 54686-97-4
Assay:99% Appearance:white powder Package:25KG/Drum Storage:2-8掳C Transportation:By air /Sea/ coruier Application:Pharm chemicals industry
Min. Order:1Kilogram
Supplier:Leader Biochemical Group [ China (Mainland)]
Premium
SupplierTel:86-029-68895030
Address:Aerospace Economic & Technical Development Zone, Chang'an District,Xi'an,China
- Contact Suppliers
CAS No.54686-97-4 Pharmaceutical Grade CAS 54686-97-4 with competitive price
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:Chemical raw materials, pharmaceutical intermediates, cosmetic raw materials, etc.
Min. Order:1Kilogram
Supplier:Zhuozhou Wenxi import and Export Co., Ltd [ China (Mainland)]
Premium
SupplierTel:+86-13111626072
Address:Room 1710, Baoxin International Phase I, 19 Guanyun East Road, Zhuozhou, Hebei
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol CAS 54686-97-4
Assay:98%min Appearance:White Powder Package:1kg/foil bag Storage:room temp Transportation:By sea /Air / Courier Application:Fine Chemical
Min. Order:10Kilogram
Supplier:Wuhan Fortuna Chemical Co.,Ltd [ China (Mainland)]
Premium
SupplierTel:86-27-59207850
Address:Add: Room 2015, No.2 Building, Kaixin Mansion No.107 Jinqiao Avenue, Wuhan, China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Premium
SupplierTel:+86-15965530500
Address:shandong
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Premium
SupplierTel:+86-1895157
Address:Liang Xi Qu
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:99% Appearance:powder Package:1kg/bag; 101kg/drum, or as customer's required Storage:Keep in a cool & dry place Transportation:by air/by sea
Min. Order:0Metric Ton
Supplier:Jiangsu Congzhong Chemical Co., Ltd. [ China (Mainland)]
Premium
SupplierTel:86-13862111431-13862111431
Address:姹熻嫃鐪佽嫃宸炲競鐩稿煄鍖洪珮閾佹柊鍩庡崡澶╂垚璺?6鍙蜂竾姹囧晢鍔″箍鍦?骞?20瀹?/p>
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenyliedene sorbitol
Assay:99.3% Appearance:white or Almost colorless Package:2.5kg or 5kg Transportation:Air freight, sea freight, and express delivery Application:intermediate
Min. Order:4Kilogram
Supplier:SHANGHAI T&W PHARMACEUTICAL CO., LTD. [ China (Mainland)]
Premium
SupplierTel:+86-21-61551611
Address:601, No. 1, 2277 Nong, Zu Chongzhi Road, Zhangjiang Hightech. Park, Pudong
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:98% 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)]
Premium
SupplierTel:86-021-58380978
Address:Building 87锛孡ane 669锛?Dong Jing Road Shanghai,P.R.China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:98% Appearance:Reference material object Package:According to customer requirements Storage:Sealed and preserved Transportation:By sea or by air 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:Wuhan Newgreat Chemical Co., Ltd [ China (Mainland)]
Premium
SupplierTel:86-027-85953558
Address:East Lake high tech Development Zone, Wuhan, 262, No.
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenyliedene sorbitol 54686-97-4
Assay:98% 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)]
Premium
SupplierTel:0086-182-2994-0868
Address:Buiding4,Lugu Enterprise Plaza, Yuelu Distric
- Contact Suppliers
CAS No.54686-97-4 Nucleating Agent 3940
Assay:99% Appearance:solid or liquid Package:drum and bag Storage:in sealed air resistant place Transportation:by sea or air Application:for pharma use
Min. Order:0
Supplier:Greenutra Resource Inc [ China (Mainland)]
Premium
SupplierTel:0086-411-39553357
Address:No. 7-1-1802, Huizhi Garden,Ocean Square,Dalian, 116033, China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol CAS No.54686-97-4
Assay:99.00% 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)]
Premium
SupplierTel:+86-15527996628
Address:Guangzhou chemical city Tianhe District Guangzhou Guangdong China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenyliedene sorbitol
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require
Min. Order:0
Supplier:Hunan chemfish Pharmaceutical co.,Ltd [ China (Mainland)]
Premium
SupplierTel:0731-85567275
Address:Innovation center , Meixi Lake ,Yuelu district ,Changsha City, Hunan Province , China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol Cas no.54686-97-4 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)]
Premium
SupplierTel:0086-577-64498589
Address:6F, No. 396 Xingping Road, Longwan Industrial Zone, Wenzhou City, Zhejiang, 325000 P.R.China
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
Assay:98% Application:it's used for for pharmaceutical intermediates, organic chemicals
Min. Order:0
Supplier:SHANDONG BENRITE NEW CHEMICAL MATERIALS CO.,LTD. [ China (Mainland)]
Premium
SupplierTel:86-0533-2866658
Address: Zibo Science and Technology Industrial Park, Zibo City,Shandong Province
- Contact Suppliers
CAS No.54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol
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)]
Premium
SupplierTel:+86-0371-87507775
Address:No 260 Dongming Road,Jinshui District
- Contact Suppliers
- Dayang Chem (Hangzhou) Co.,Ltd.
Other Product
- 4477-28-5/4-Diazodiphenylamine sulfate
- 171596-29-5/Tadalafil
- 31677-93-7/Bupropion hydrochloride
- 75-77-4/Chlorotrimethylsilane
- 4039-32-1/Lithium bis(trimethylsilyl)amide
- 68917-18-0/Cornmint oil
- 8000-28-0/Lavander oil
- 51481-65-3/Mezlocillin
- 37091-66-0/Azlocillin
- 98-68-0/4-Methoxybenzenesulfonyl chloride
- 68952-43-2/ANISE OIL
- 3746-67-6/N-Acetyl-4-methoxymetanilyl chloride
- 1071-83-6/Glyphosate
- 4401-74-5/Urea phosphate
- 25496-36-0/Polysalicylate
- 26741-53-7/Antioxidant 24
- 54686-97-4/1,3:2,4-Di-p-methylbenzylidene sorbitol
- 41556-26-7/Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate
- 52829-07-9/Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate
- 65140-91-2/Calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate]
- 104810-48-2/Tinuvin-1130
- 65447-77-0/Poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol-alt-1,4-butanedioic acid)
- 76656-36-5/Disodium 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone
- 49805-30-3/2-Azabicyclo[2.2.1]hept-5-en-3-one
- 59642-21-6/N-(4-Nitrobenzoyl)-beta-alanine
- 161696-76-0/2-Methyl-4-(1-piperazinyl)-10H-thienol[2,3-b][1,5]benzodiazepine
- 138564-60-0/4-Amino-2-methyl-10H-thiene[2,3-b][1,5]benzodiazepine hydrochloride
- 138564-59-7/5-Methyl-2-[(2-nitrophenyl)amino]thiophene-3-carbonitrile
- 171550-12-2/4-(4-Hydrazinobenzyl)-2-oxazolidinone
- 152305-23-2/(S)-4-(4-Aminobenzyl)-2(1H)-oxazolidinone