| Identification | More | [Name]
Benzyl carbamate | [CAS]
621-84-1 | [Synonyms]
BENZYL CARBAMATE
BENZYLOXYCARBONYL AMIDE
CARBAM
CARBAMIC ACID BENZYL ESTER
N-CARBOBENZOXY-AMIDE
Z-AMIDE
Z-NH2
O-Benzylcarbamate
Benzylcarbamate (Z-NH2)
Carbamic acid benzyl ester~Z-NH_2
Phenylmethyl carbamate
Benzyl urethane
Benzyloxycarbonylamine | [EINECS(EC#)]
210-710-4 | [Molecular Formula]
C8H9NO2 | [MDL Number]
MFCD00007965 | [Molecular Weight]
151.16 | [MOL File]
621-84-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Off-white to light beige powder or flakes | [Melting point ]
86-89 °C (lit.) | [Boiling point ]
273.17°C (rough estimate) | [density ]
1.2023 (rough estimate) | [refractive index ]
1.5810 (estimate) | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [solubility ]
Chloroform (Slightly), Methanol (Slightly) | [form ]
Powder or Flakes | [pka]
13.42±0.50(Predicted) | [color ]
Off-white to light beige | [Water Solubility ]
68.02g/L(37 ºC) | [BRN ]
1865635 | [InChIKey]
PUJDIJCNWFYVJX-UHFFFAOYSA-N | [CAS DataBase Reference]
621-84-1(CAS DataBase Reference) | [NIST Chemistry Reference]
Carbamic acid, benzyl ester(621-84-1) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
3
| [HS Code ]
29242995 |
| Hazard Information | Back Directory | [Chemical Properties]
Off-white to light beige powder or flakes | [Application]
Benzyl carbamate is an intermediate in the synthesis of various pharmaceutical compounds. It can be also used as nondeuterated internal standards for the quantitative analysis of carisoprodol in blood. | [Uses]
Benzyl carbamate (Cbz) is a reagent used for the nucleophilic introduction of an amino-protected group, Benzyl carbamates can be considered as a benzyloxycarbonyl (otherwise known as carbobenzyloxy, Cbz or Z) protecting group for amino groups.
Benzyl carbamate (Cbz) protection of amines was introduced as a versatile alternative to the ethoxy carbamate group in peptide synthesis. | [Uses]
Carbamyl Benzyl Ester, is an intermediate in the synthesis of various pharmaceutical compounds. It can be also used as nondeuterated internal standards for the quantitative analysis of carisoprodol in blood. | [Preparation]
Benzyl carbamate is prepared by reacting benzyl chloroformate with ammonia. Benzyl chloroformate was slowly added to 5 times the volume of cold ammonia water (relative density 0.90) under vigorous stirring, the reaction mixture was placed at room temperature for 30 minutes, the precipitate was filtered out, washed with water and dried to obtain the finished product of benzyl carbamate. | [Purification Methods]
If it smells of NH3, then dry it in a vacuum desiccator and recrystallise it from 2 volumes of toluene and dry it in a vacuum desiccator again. It forms glistening plates from toluene, and can be recrystallised from H2O [Martell & Herbst J Org Chem 6 878 1941, Carter et al. Org Synth Coll Vol III 168 1955]. [Beilstein 6 IV 2278.] |
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