- Ethyl carbazate
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2026-08-20
- CAS:4114-31-2
- Min. Order: 1KG
- Purity: 98%min
- Supply Ability: 30tons/month
- Ethyl Carbazatecas
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- $5.70
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2026-05-28
- CAS:4114-31-2
- Min. Order: 10KG
- Purity: 99%
- Supply Ability: 10000kg
- Ethyl carbazate
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- $10.00
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2026-03-20
- CAS:4114-31-2
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10 mt
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| | Ethyl carbazate Basic information |
| | Ethyl carbazate Chemical Properties |
| Melting point | 44-47 °C (lit.) | | Boiling point | 108-110 °C/22 mmHg (lit.) | | density | 1.2719 (rough estimate) | | refractive index | 1.4715 (estimate) | | Fp | 187 °F | | storage temp. | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C | | pka | 10.72±0.20(Predicted) | | form | Powder | | color | White to cream | | Water Solubility | Very soluble in water. | | Sensitive | Moisture Sensitive | | BRN | 878265 | | InChI | 1S/C3H8N2O2/c1-2-7-3(6)5-4/h2,4H2,1H3,(H,5,6) | | InChIKey | VYSYZMNJHYOXGN-UHFFFAOYSA-N | | SMILES | CCOC(=O)NN | | CAS DataBase Reference | 4114-31-2(CAS DataBase Reference) | | NIST Chemistry Reference | Hydrazinecarboxylic acid, ethyl ester(4114-31-2) | | EPA Substance Registry System | Hydrazinecarboxylic acid, ethyl ester (4114-31-2) |
| Hazard Codes | Xi,T | | Risk Statements | 36/37/38-25 | | Safety Statements | 26-36-45 | | RIDADR | 2811 | | WGK Germany | 3 | | RTECS | FE2545000 | | TSCA | TSCA listed | | HazardClass | 6.1 | | PackingGroup | III | | HS Code | 29280090 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| | Ethyl carbazate Usage And Synthesis |
| Chemical Properties | Off-white crystals. | | Uses | Synthetic intermediate. | | Uses | Prepare 4-phenylurazole from ethyl carbazate and then oxidize the urazole with gaseous dinitrogen tetroxide to yield 4-phenyl-1,2,4-tri- azoline-3,5-dione la. Modification of the ethyl carbazate procedure in which analytically pure monoalkylhydrazine hydrochlorides were isolated in greater than 90% yield, starting from a ketone or aldehyde. Treatment of primary amines is with chloroamine or hydroxylamine-0-sulfonic acid and the condensation of a carbonyl compound with ethyl carbazate. The FeCl 3 -catalyzed reaction of ethyl carbazate (2 b) proceeded readily to give β-hydroxyester 3 b in better yield. A new one-pot neat synthesis of some 5-aryl-2,4-dihydro-3H-1,2,4-triazol-3-ones through cyclocondensation of ethyl carbazate with aryl nitriles catalyzed by DMAP as an efficient and basic nucleophilic catalyst is described. | | Hazard | Irritant. | | Purification Methods | Fractionate the carbazate using a Vigreux column (p 11) until the distillate crystallises [Allen & Bell Org Synth Coll Vol III 404 1955, Beilstein 3 IV 174]. |
| | Ethyl carbazate Preparation Products And Raw materials |
| Raw materials | Diethyl carbonate-->HYDRAZINE-->Methyl carbazate | | Preparation Products | 4-(1,2,3-THIADIAZOL-4-YL)BENZOYL CHLORIDE-->4-(1,2,3-THIADIAZOL-4-YL)BENZYLAMINE HYDROCHLORIDE-->5-CYANO-4-METHYL-1,2,3-THIADIAZOLE-->4-(4-CHLOROPHENYL)-1,2,3-THIADIAZOL-5-AMINE-->4-PHENYL-1,2,3-THIADIAZOL-5-AMINE-->4-(1,2,3-THIADIAZOL-4-YL)BENZALDEHYDE-->Thidiazuron-->4-METHYL-1,2,3-THIADIAZOLE-5-CARBOXAMIDE-->4-(4-METHOXYPHENYL)-1,2,3-THIADIAZOL-5-AMINE-->4-[4-(TRIFLUOROMETHYL)PHENYL]-1,2,3-THIADIAZOL-5-AMINE-->4-Methyl-1,2,3-thiadiazole-5-carboxylic acid-->4-[4-(BROMOMETHYL)PHENYL]-1,2,3-THIADIAZOLE-->4-(1,2,3-THIADIAZOL-4-YL)BENZOIC ACID-->4-(1,2,3-THIADIAZOL-4-YL)PHENOL-->4-(1,2,3-THIADIAZOL-4-YL)ANILINE-->4-ISOPROPYL-1,2,3-THIADIAZOLE-5-CARBOXYLIC ACID-->4-(4-METHYLPHENYL)-1,2,3-THIADIAZOLE-->(1,2,3-THIADIAZOL-4-YL)METHANOL-->4-(4-NITROPHENYL)-1,2,3-THIADIAZOLE-->4-(4-METHOXYPHENYL)-1,2,3-THIADIAZOLE-->4-(1,2,3-THIADIAZOL-4-YL)BENZONITRILE-->4-(4-CHLOROPHENYL)-1,2,3-THIADIAZOLE-->4-(4-BROMOPHENYL)-1,2,3-THIADIAZOLE-->4-METHYL-1,2,3-THIADIAZOLE-5-CARBONYL CHLORIDE-->ETHYL 4-ISOPROPYL-1,2,3-THIADIAZOLE-5-CARBOXYLATE-->1,2,3-THIADIAZOLE-4-CARBOXYLIC ACID-->1,2,3-Thiadiazole-4-carbonyl chloride (6CI,7CI,8CI,9CI)-->ETHYL 4-METHYL-1,2,3-THIADIAZOLE-5-CARBOXYLATE-->ETHYL 1,2,3-THIADIAZOLE-4-CARBOXYLATE-->Cadralazine |
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