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N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester

Also known as: CBZ-S-phenyl-L-cysteine methyl ester, L-Cysteine, S-phenyl-N-[(phenylmethoxy)carbonyl]-, methyl ester, Methyl N-[(benzyloxy)carbonyl]-S-phenyl-L-cysteinate, N-Carbobenzoxy-2-phenyl-L-cysteine methyl ester, N-Benzyloxycarbonyl-S-phenyl-L-cysteine methyl ester, Nelfinavir Impurity 1

N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester (CAS 153277-33-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H19NO4S and a molecular weight of 345.41300 g/mol. Key properties include a boiling point of 522.944ºC at 760 mmHg, a density of 1.247g/cm3 and a flash point of 270.067ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
153277-33-9
Jingsj CID
J-1467200-5
Molecular Formula
C18H19NO4S
Molecular Weight
345.41300 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point522.944ºC at 760 mmHg
Density1.247g/cm3
Flash Point270.067ºC
Exact Mass345.10300
PSA89.93000
LogP3.63760
Vapor Pressure0mmHg at 25°C
Refractive Index1.599

Frequently Asked Questions

What is the CAS number of N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester?

The CAS number of N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester is 153277-33-9.

What are the molecular formula and molecular weight of N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester?

N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester has molecular formula C18H19NO4S and molecular weight 345.41300 g/mol.

What are the upstream and downstream products of N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester?

For N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester, Upstream Products: Bromobenzene, Tetrabutylphosphonium bromide, Potassium carbonate; Downstream Products: N-Carbobenzyloxy-S-phenyl-L-cysteine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-Carbobenzoxy-S-phenyl-L-cysteine methyl ester (CAS 153277-33-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1467200-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.