Benzyl carbamate

Product Name: Benzyl carbamate
CAS No.: 621-84-1
Chemical Name: Benzyl carbamate
Synonyms: Z-NH2;CARBAM;O-Benzylcarbamate;Benzyl aminoformate;N-CARBOBENZOXY-AMIDE;CarbaMyl Benzyl Ester;CARBAMIC ACID BENZYL ESTER;Z-AMIDE;Benzyl urethane;BENZYL CARBAMATE
CBNumber: CB5100170
Molecular Formula: C8H9NO2
Formula Weight: 151.16
MOL File: 621-84-1.mol

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Benzyl carbamate Property

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)

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Safety

Hazard Codes: Xn
Risk Statements: 20/21/22-36/37/38
Safety Statements: 22-24/25-36-26
WGK Germany: 3
HS Code: 29242995

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: B18200
Product name: Benzyl carbamate
Purity: 99%
Packaging: 25g
Price: $56.3
Updated: 2024/03/01

Sigma-Aldrich

Product number: B18200
Product name: Benzyl carbamate
Purity: 99%
Packaging: 100g
Price: $127
Updated: 2024/03/01

TCI Chemical

Product number: C0590
Product name: Benzyl Carbamate
Purity: >97.0%(N)
Packaging: 25g
Price: $59
Updated: 2024/03/01

TCI Chemical

Product number: C0590
Product name: Benzyl Carbamate
Purity: >97.0%(N)
Packaging: 250g
Price: $437
Updated: 2024/03/01

Alfa Aesar

Product number: A11569
Product name: Benzyl carbamate, 99%
Packaging: 25g
Price: $36.65
Updated: 2024/03/01

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Benzyl carbamate Chemical Properties,Usage,Production

Chemical Properties

Off-white to light beige powder or flakes, melting point 87-89 ℃. Insoluble in water, soluble in organic solvents such as benzene.

Uses

Benzyl carbamate 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. It was introduced as a versatile alternative to the ethoxy carbamate group in peptide synthesis.

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.

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.]

Benzyl carbamate Preparation Products And Raw materials

Raw materials

Benzyl chloroformate

Preparation Products

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Benzyl carbamate Suppliers

Americas 1 Belgium 3 China 269 Europe 2 Germany 8 India 36 Japan 8 Switzerland 2 Ukraine 1 United Kingdom 11 United States 31 Global 372

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View Lastest Price from Benzyl carbamate manufacturers

Hebei Weibang Biotechnology Co., Ltd

Product: Benzyl carbamate 621-84-1
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-10-29

Hebei Yanxi Chemical Co., Ltd.

Product: Benzyl carbamate 621-84-1
Price: US $50.00-8.50/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 30 tons
Release date: 2023-09-07

Hebei Chuanghai Biotechnology Co,.LTD

Product: Benzyl carbamate 621-84-1
Price: US $5.00-2.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10000kg
Release date: 2024-08-15

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