N-(tert-Butoxycarbonyl)-L-cysteine methyl ester
N-(叔丁氧基羰基)-L-半胱氨酸甲酯
Also known as: methyl (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-sulfanylpropanoate, methyl N-BOC-L-cysteinate, N-Boc-L-cysteine methyl ester, Methyl (tert-butoxycarbonyl)-L-cysteinate, L-Cysteine, N-[(1,1-dimethylethoxy)carbonyl]-, methyl ester, N-(tert-Butoxycarbonyl)-L-cysteine methyl ester (USP/EP/BP)
N-(tert-Butoxycarbonyl)-L-cysteine methyl ester (CAS 55757-46-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H17NO4S and a molecular weight of 235.30100 g/mol. It is also known as methyl (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-sulfanylpropanoate, methyl N-BOC-L-cysteinate and N-Boc-L-cysteine methyl ester. Key properties include a boiling point of 214ºC(lit.), a density of 1.143 g/mL at 25ºC(lit.) and a flash point of 113 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55757-46-5
- Jingsj CID
- J-5743-9
- Molecular Formula
- C9H17NO4S
- Chinese Name
- N-(叔丁氧基羰基)-L-半胱氨酸甲酯
- Molecular Weight
- 235.30100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 214ºC(lit.) |
|---|---|
| Density | 1.143 g/mL at 25ºC(lit.) |
| Flash Point | 113 °C |
Frequently Asked Questions
What is the CAS number of N-(tert-Butoxycarbonyl)-L-cysteine methyl ester?
The CAS number of N-(tert-Butoxycarbonyl)-L-cysteine methyl ester is 55757-46-5.
What are the molecular formula and molecular weight of N-(tert-Butoxycarbonyl)-L-cysteine methyl ester?
N-(tert-Butoxycarbonyl)-L-cysteine methyl ester has molecular formula C9H17NO4S and molecular weight 235.30100 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N-(tert-Butoxycarbonyl)-L-cysteine methyl ester (CAS 55757-46-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5743-9 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.