Boc-L-cysteine
N-叔丁氧羰基-L-半胱氨酸
Also known as: N-tert-Butoxycarbonyl-L-cysteine, N-(tert-Butoxycarbonyl)cysteine, Boc-Cys-OH, BOC-CYS-OH, N-Boc-L-cysteine, (R)-2-((tert-butoxycarbonyl)amino)-3-mercaptopropanoic acid, L-Cysteine, N-[(1,1-dimethylethoxy)carbonyl]-, MFCD00065565
Boc-L-cysteine (CAS 20887-95-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H15NO4S and a molecular weight of 221.274 g/mol. It is also known as N-tert-Butoxycarbonyl-L-cysteine, N-(tert-Butoxycarbonyl)cysteine and Boc-Cys-OH. Key properties include a melting point of 67-70°C, a boiling point of 361.4±37.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 172.3±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20887-95-0
- Jingsj CID
- J-1993207-1
- Molecular Formula
- C8H15NO4S
- Chinese Name
- N-叔丁氧羰基-L-半胱氨酸
- Molecular Weight
- 221.274 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 67-70°C |
|---|---|
| Boiling Point | 361.4±37.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 172.3±26.5 °C |
Frequently Asked Questions
What is the CAS number of Boc-L-cysteine?
The CAS number of Boc-L-cysteine is 20887-95-0.
What are the molecular formula and molecular weight of Boc-L-cysteine?
Boc-L-cysteine has molecular formula C8H15NO4S and molecular weight 221.274 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Boc-L-cysteine (CAS 20887-95-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993207-1 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.