Ethyl carbazate , ≥99.0% , 4114-31-2
Synonym(s):
Hydrazinocarboxylic acid ethyl ester
CAS NO.：4114-31-2
Empirical Formula: C3H8N2O2
Molecular Weight: 104.11
MDL number: MFCD00007595
EINECS: 223-903-3
| Pack Size | Price | Stock | Quantity |
| 5G | RMB23.20 | In Stock |
|
| 25G | RMB36.80 | In Stock |
|
| 100G | RMB79.20 | In Stock |
|
| 500G | RMB319.20 | In Stock |
|
| others | Enquire |
PRODUCT 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) |
| Flash point: | 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) |
Description and 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.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| target organs | Respiratory system |
| PPE | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
| 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 |
