N-Carbobenzoxy-S-benzyl-L-cysteine
Also known as: Z-Cys(Bzl)-OH, Cbz-Cys(Bzl)-OH, S-Benzyl-N-[(benzyloxy)carbonyl]-L-cysteine, N-Cbz-S-benzyl-L-cysteine, Nα-Z-S-benzyl-L-cysteine, S-Benzyl-N-carbobenzyloxy-L-cysteine, Z-CYS(BZL)-OH, N-Carbobenzoxy-S-benzyl-L-cysteine, L-Cysteine, N-[(phenylmethoxy)carbonyl]-S-(phenylmethyl)-, Benzyloxycarbonyl-S-benzyl-L-cysteine, MFCD00004785, EINECS 221-855-8
N-Carbobenzoxy-S-benzyl-L-cysteine (CAS 3257-18-9) 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 345.41800 g/mol. Key properties include a melting point of 98 °C, a boiling point of 379.2±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 183.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 3257-18-9
- Jingsj CID
- J-1307596-2
- Molecular Formula
- C18H19NO4S
- Molecular Weight
- 345.41800 g/mol
- Category
- Organic Acids
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 98 °C |
|---|---|
| Boiling Point | 379.2±42.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 183.2±27.9 °C |
| Exact Mass | 211.066696 |
| PSA | 100.93000 |
| LogP | 2.10 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.609 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of N-Carbobenzoxy-S-benzyl-L-cysteine?
The CAS number of N-Carbobenzoxy-S-benzyl-L-cysteine is 3257-18-9.
What are the molecular formula and molecular weight of N-Carbobenzoxy-S-benzyl-L-cysteine?
N-Carbobenzoxy-S-benzyl-L-cysteine has molecular formula C18H19NO4S and molecular weight 345.41800 g/mol.
What are the upstream and downstream products of N-Carbobenzoxy-S-benzyl-L-cysteine?
For N-Carbobenzoxy-S-benzyl-L-cysteine, Upstream Products: S-benzyl-L-cysteine methyl ester hydrochloride, S-Benzyl-L-cysteine, Benzyl bromide; Downstream Products: S-Benzyl-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-benzyl-L-cysteine (CAS 3257-18-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1307596-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.