L-Homocystine
L-高胱氨酸
Also known as: (2S,2'S)-4,4'-Dithiobis(2-aminobutanoic acid), (2S,2'S)-4,4'-Disulfanediylbis(2-aminobutanoic acid), (2S,2'S)-4,4'-Disulfanediylbis(2-aMinobutanoic acid), (2S,2'S)-4,4'-Dithiobis(2-aminobutyric acid), (2S,2'S)-4,4'-Dithiobis[2-aMinobutanoic Acid], 4,4'-Dithiobis[(2S)-2-aminobutanoic acid], 4,4'-Dithiobis[(S)-2-aminobutanoic acid], 4,4'-Dithiobis[(S)-2-aminobutyric acid], Butanoic acid, 4,4'-dithiobis[2-amino-, (2S,2'S)-, (H-HoCys-OH)2, H-HoCys-OH, L-Homocystine (8CI), Homocystine, L-, 3,3'-(Dithiobismethylene)bisalanine
L-Homocystine (CAS 626-72-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H16N2O4S2 and a molecular weight of 268.354 g/mol. It is also known as (2S,2'S)-4,4'-Dithiobis(2-aminobutanoic acid), (2S,2'S)-4,4'-Disulfanediylbis(2-aminobutanoic acid) and (2S,2'S)-4,4'-Disulfanediylbis(2-aMinobutanoic acid). Key properties include a melting point of 281-284ºC (dec.), a boiling point of 507.6±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 260.8±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 626-72-2
- Jingsj CID
- J-1992234-0
- Molecular Formula
- C8H16N2O4S2
- Chinese Name
- L-高胱氨酸
- Molecular Weight
- 268.354 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 281-284ºC (dec.) |
|---|---|
| Boiling Point | 507.6±50.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 260.8±30.1 °C |
Frequently Asked Questions
What is the CAS number of L-Homocystine?
The CAS number of L-Homocystine is 626-72-2.
What are the molecular formula and molecular weight of L-Homocystine?
L-Homocystine has molecular formula C8H16N2O4S2 and molecular weight 268.354 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Homocystine (CAS 626-72-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992234-0 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.