S-Ethyl-L-cysteine
S-乙基-L-半胱氨酸
Also known as: H-Cys(Et)-OH, 3-(Ethylthio)alanine, 5-ETHYL-L-CYSTEINE, Aids-034431, Aids034431, L-2-Amino-3-aethylmercapto-propionsaeure, Nsc49244, S-Aethyl-L-cystein, S-ethyl cysteine, S-ethyl-L-cysteine crystalline
S-Ethyl-L-cysteine (CAS 2629-59-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11NO2S and a molecular weight of 149.21100 g/mol. It is also known as H-Cys(Et)-OH, 3-(Ethylthio)alanine and 5-ETHYL-L-CYSTEINE. Key properties include a melting point of 260ºC, a boiling point of 289.2ºC at 760mmHg, a density of 1.206g/cm3 and a flash point of 128.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2629-59-6
- Jingsj CID
- J-1413742-2
- Molecular Formula
- C5H11NO2S
- Chinese Name
- S-乙基-L-半胱氨酸
- Molecular Weight
- 149.21100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 260ºC |
|---|---|
| Boiling Point | 289.2ºC at 760mmHg |
| Density | 1.206g/cm3 |
| Flash Point | 128.7ºC |
Frequently Asked Questions
What is the CAS number of S-Ethyl-L-cysteine?
The CAS number of S-Ethyl-L-cysteine is 2629-59-6.
What are the molecular formula and molecular weight of S-Ethyl-L-cysteine?
S-Ethyl-L-cysteine has molecular formula C5H11NO2S and molecular weight 149.21100 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "S-Ethyl-L-cysteine (CAS 2629-59-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1413742-2 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.