3,6-Dimethyl-9H-carbazole(5599-50-8)
- Name: 3,6-Dimethyl-9H-carbazole
- Synonyms:9H-Carbazole,3,6-dimethyl;3,6-Dimethylcarbazol;3,6-Dimethylcarbazole;Carbazole,3,6-dimethyl;
- Molecular Formula:C14H13N
- Molecular Weight:195.264
- CAS Registry Number:5599-50-8
- EINECS:
- Melting Point:215-217℃
- Water Solubility:
CAS No.5599-50-8 Good quality, high purity, low price 3,6-dimethyl-9H-carbazole 5599-50-8 manufacturer/high quality/in stock
Assay:99% Package: As required Application:5599-50-8
Min. Order:1Kilogram
Supplier:CHANGZHOU HANGYU PHARMACEUTICAL TECHNOLOGY CO., LTD [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:>98% Appearance:White to Orange to Green Package:100g/bottle; 500g/bottle 1 kg/bottle;25 kg/Drums or according to customer requirement Storage:Store in dry, dark and ventilated places Transportation:By Courier or Air and Sea Application:OLED Intermediates, pharmaceutical and research,
Min. Order:100Gram
Supplier:Puyang Huicheng Electronic Material Co., Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98%Min 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:1Kilogram
Supplier:Dayang Chem (Hangzhou) Co.,Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% purity Appearance:powder Package:According to the need of packing Storage:Keep in dark place,Sealed in dry,Room Temperature Transportation:air,sea,courier Application:intermediate
Min. Order:1Gram
Supplier:Shanghai Minstar Chemical Co., Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Appearance:powder or liquid Package:according to customer requirements Storage:store in dry dark and ventilated place 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.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Package:According client's requirements Transportation:by sea/by air/by courier Application:Chemical products
Min. Order:1Kilogram
Supplier:Hangzhou ZeErRui Chemical Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 Newblue CHEM--3,6-Dimethyl-9H-carbazole
Assay:99% Appearance:White powder Package:in aluminium foil bag Storage:Room temperature Transportation:BY SEA, AIR OR EXPRESS Application:OLED materials
Min. Order:100Kilogram
Supplier:HENAN NEW BLUE CHEMICAL CO.,LTD [
China (Mainland)] CAS No.5599-50-8 High purity 3,6-Dimethyl-9H-carbazole
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:RongNa Biotechnology Co., Ltd [
China (Mainland)] CAS No.5599-50-8 High Quality 3,6-dimethyl-9H-Carbazole CAS 5599-50-8
Assay:99% Appearance:powder Package:According to customer requirements Storage:Avoid light, ventilation and shade Transportation:Delivery according to customer's requirements, express, air or sea Application:Medical research field
Min. Order:1Gram
Supplier:Qingdao Beluga Import and Export Co., LTD [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Appearance:powder Package:According yo your request Storage:2-8掳C Transportation:We will pack and ship according to your requirements Application:The pharmaceutical industry; Food additives; Catalyst; Agrochemical industry; Organic chemicals; Inorganic chemical
Min. Order:1Kilogram
Supplier:Hebei Nengqian Chemical Import and Export Co., LTD [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 3,6-Dimethyl-9H-carbazole, 98%
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.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Appearance:Powder Package:According to customer requirements Storage:dry and cool Transportation:Air and sea transportation Application:Pharmaceutical Industry
Min. Order:1Kilogram
Supplier:GIHI CHEMICALS CO.,LIMITED [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole, 98%
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.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 9H-Carbazole, 3,6-dimethyl-
Assay:99% Appearance:White fine powder Package:according to the clients requirement Storage:Store in dry dark and ventilated place Transportation:Transportation by express, air, sea; port mainly to Qingdao / Tianjin / Shanghai, or according to customer needs to send different ports and aviation. Application:It is an important raw material.
Min. Order:1Kilogram
Supplier:Shandong Hanjiang Chemical Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 TIANFU CHEM--3,6-Dimethyl-9H-carbazole
Assay:98 Appearance:white powder Package:20kg/drum, 200kg/drum or 1000kg/IBC Drum 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.5599-50-8 3,6-Dimethyl-9H-carbazole
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)] CAS No.5599-50-8 9H-Carbazole, 3,6-dimethyl-
Assay:98%,99% Appearance:refer to COA Package:According to the clients requirement Storage:Store in dry, cool and ventilated place Transportation:By sea or by air or by courier Application:Liquid crystal intermediate
Min. Order:0
Supplier:Hangzhou Ocean Chemical Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:鈮?7% Appearance:White solid Application:OLED
Min. Order:0
Supplier:HANGZHOU TIANYE CHEMICALS CO., LTD. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% Application:For research use only.
Min. Order:0
Supplier:HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD [
China (Mainland)] CAS No.5599-50-8 9H-Carbazole, 3,6-dimethyl-
Assay:95% Application:Synthetic building block
Min. Order:0
Supplier:SAGECHEM LIMITED [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 3,6-Dimethyl-9H-carbazole, 98%
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.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Package:box or opp package Storage:cool drum Transportation:air or sea Application:3,6-Dimethyl-9H-carbazole
Min. Order:1Milligram
Supplier:weifang yangxu group co.,ltd [
China (Mainland)] CAS No.5599-50-8 9H-Carbazole, 3,6-dimethyl-
Assay:99% Package:drum Transportation:By Sea/Air/DHL Application:chemical
Min. Order:0
Supplier:Henan Wentao Chemical Product Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Appearance:White powder Package:as your requirement Storage:Keep it in dry,shady and cool place Transportation:by Sea, by Air, by Land/EMS/TNT/DHL/ Application:Pharma;Industry;Agricultural;chemical reaserch
Min. Order:0
Supplier:Hubei Jiutian Bio-medical Technology Co., Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethylcarbazole
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.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Package:1g/1kg/25kg/200kg Transportation:Courier/Air/Sea Application:Pharm
Min. Order:0
Supplier:Hangzhou J&H Chemical Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Application:API
Min. Order:0
Supplier:Xian Changyue Biological Technology Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Application:API
Min. Order:0
Supplier:DB BIOTECH CO., LTD [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Application:API
Min. Order:0
Supplier:Wuhan Bright Chemical Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% Application:For research use only.
Min. Order:0
Supplier:Hebei Jinshengzhongtai Industry Co.,Ltd [
China (Mainland)] CAS No.5599-50-8 China Biggest factory Supply High Quality 3,6-Dimethyl-9H-carbazole CAS 5599-50-8
Assay:99.9% Appearance: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)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 Pharmaceutical Grade CAS 5599-50-8 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)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99%min Appearance:White powder Package: according to customers' requirements Storage:2-8掳C Transportation:Air, sea, land transport Application:reagent
Min. Order:1Gram
Supplier:Baoji Guokang Healthchem co.,ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% Appearance:white to off-white powder Package:1g/bag, 100g/bag, 1KG/bag, 25KG/drum Storage:cool temperature Transportation:r.t. Application:intermediate
Min. Order:1Gram
Supplier:Shanghai Massive Chemical Technology Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99% Appearance:White powder Package:25kg/drum Storage:Store in cool and dry place, away from sun light. Transportation:By sea or by air Application:Syntheses Material Intermediates
Min. Order:1Kilogram
Supplier:Henan Sinotech Import&Export Corporation [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% Appearance:White or off-white Solid Package:According to the demand of customer Storage:Sealed, dry, microtherm , avoid light and smell. Transportation: According to the demand of customer Application:3,6-Dimethyl-9H-carbazole Basic information Product Name: 3,6-Dimethyl-9H-carbazole Synonyms: 3,6-Dimethyl-9H-carbazole;3,6-DiMethylcarbazole CAS: 5599-50-8 MF: C14H13N MW: 195.25972 EINECS: P
Min. Order:1Kilogram
Supplier:Henan Allgreen Chemical Co.,Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99%min Appearance:white or almost white powder Package:1kg/drum, 25kg/drum, 200kg/drum,500kg/drum Storage:Keep it in dry, cool and ventilated place Transportation:by sea or by air Application:For scientific research
Min. Order:1Kilogram
Supplier:Shanghai Seasonsgreen Chemical Co.,Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole, 98%
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.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:99.0% Appearance:Clear, colorless liquid Package:according to your requirement Storage:Store in a dry, dark and ventilated place Transportation:by air/by sea /by train Application:lt is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff.
Min. Order:1Kilogram
Supplier:Suzhou Senfeida Chemical Co., Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole, 98%
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.5599-50-8 3,6-Dimethyl-9H-carbazole
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.5599-50-8 3,6-Dimethyl-9H-carbazole;5599-50-8
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 ChemistryBiomedicinePharmaceutical intermediatesChemistry experimentBiological experimentsChemical reagentFor R&D use only.
Min. Order:10Metric Ton
Supplier:Amadis Chemical Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 9H-Carbazole, 3,6-dimethyl- manufacture
Assay:98.00% Appearance:yellow to white solid or powder Package:According client's requirements Storage:keep sealed and keep from direct light Transportation:According client's requirements Application:fine chemicals,intermeidates
Min. Order:0
Supplier:Yinglang Chemical Company [
China (Mainland)] CAS No.5599-50-8 3,6-dimethyl-9h-carbazole
Assay:98.5% Appearance:white/off-white or light yellow Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Storage:Store in cool and dry place, keep away from strong light and heat. Transportation:by courier, by air, by sea Application:This product can be used in food/pharmaceutical/cosmetical industry
Min. Order:0
Supplier:Suzhou Health Chemicals Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
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:Falcon Life Sciences Pvt. Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethylcarbazole
Assay:>98% Appearance:white powder Package:100mg 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:Shanghai Yuanye Bio-Technology Co., Ltd. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% Application:optoelectronic material
Min. Order:0
Supplier:SHANDONG BENRITE NEW CHEMICAL MATERIALS CO.,LTD. [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole
Assay:98% Application:For research use only.
Min. Order:0
Supplier:Qingdao Bravery International Trade Co., Ltd [
China (Mainland)] CAS No.5599-50-8 3,6-Dimethyl-9H-carbazole, 98%
Assay:99% Application:3,6-Dimethyl-9H-carbazole, 98%
Min. Order:0
Supplier:Wuhan 90000 Lithium Industry and Trade Co., Ltd. [
China (Mainland)]
Other Product
- 41689-66-1/2,2',3,3'-Tetrahydro-2,2',5,5',8-pentahydroxy-6,6',8'-trimethoxy-2,2'-dimethyl-7,10'-bi[4H-naphtho[2,3-b]pyran]-4,4'-dione
- 31900-04-6/disodium 4,4'-bis[[6-anilino-4-(methylamino)-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate
- 81761-84-4/N-[2-(Diethylamino)ethyl]-4-methyl-1-(4-methylphenyl)-1,4-dihydropyrazolo[4,3-c][1,2]benzothiazine-3-carboxamide 5,5-dioxide
- 7651-91-4/N,N-Dichloro-N-methylamine
- 27555-41-5/5-ethenyl-2-methyl-1-oxo-1,2-dihydropyridinium
- 63530-26-7/Zanflo
- 35135-68-3/(9R,11S,14S,16R,17R)-6,6,9-trifluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-8,11,12,14,15,16-hexahydro-7H-cyclopenta[a]phenanthren-3-one
- 2562-52-9/2,6,8-TRICHLOROPURINE
- 21889-07-6/4-[(3E)-3-(1H-inden-1-ylidene)prop-1-en-1-yl]-N,N-dimethylaniline
- 196936-27-3/Habon G
- 9000-19-5/Daemonorops draco
- 44980-51-0/N-Vinyloxycarbonyl-L-alanine
- 1293-87-4/1,1'-FERROCENEDICARBOXYLIC ACID
- 68551-23-5/Poly[acrylic acid-C24-28-.alpha.-olefin], C6-10-alkyl ester
- 67466-28-8/[24,26-dioxo-25-azaheptacyclo[10.10.5.0~2,11~.0~3,8~.0~13,22~.0~14,19~.0~23,27~]heptacosa-1,3,5,7,9,11,13(22),14,16,18,20-undecaen-25-yl]acetic acid (non-preferred name)
- 13145-01-2/N,N'-[(phenylmethylene)di-4,1-phenylene]bis(acetamide)
- 207925-43-7/Dianal LR 321
- 36016-24-7/N-(4-chlorophenyl)-N-hydroxy-3-methylbenzamide
- 79850-87-6/bis(3-chlorophenyl) hydrogen phosphate
- 5599-50-8/3,6-Dimethyl-9H-carbazole
- 156398-70-8/b-D-Glucopyranoside, (3b,6a,12b,24R)-20,25-epoxy-3,12,24-trihydroxydammaran-6-yl 2-O-b-D-xylopyranosyl (9CI)
- 85153-75-9/5-Oxo-L-proline, compound with L-threonine (1:1)
- 67701-27-3/Glycerides, C14-18
- 216884-08-1/Glykenin I'-A
- 56820-97-4/10-(2,2-dimethyl-3,4-dihydro-2H-pyrrol-5-yl)-9,10-dihydroacridine hydrochloride
- 3955-65-5/6-methylphenanthridine
- 20605-81-6/tetrahydroaldosterone 3 beta-glucosiduronic acid
- 37707-85-0/2-(6,7-dimethoxynaphthalen-2-yl)acetamide
- 51890-90-5/methyl prop-2-enoate; 2-methylprop-2-enoic acid; prop-2-enamide
- 6597-22-4/ETHYL-BIS-(SODIUMTETRAZOYLAZO)ACETATE