DL-Homocysteine
Also known as: 2-Amino-4-mercaptobutyric acid, DL-2-Amino-4-mercaptobutyric acid, (±)-Homocysteine, H-DL-Hcys-OH, NSC 2212, usafb-12, 2-Amino-4-mercaptobutanoic acid, 2-amino-4-mercapto-Butanoic acid, 2-amino-4-sulfanylbutanoic acid, DL-HoMocystein, DL-HoMocysteine, Homocysteine, MFCD00004898, S7IJP4A89K, dl-2-amino-4-mercaptobutyricacid
DL-Homocysteine (CAS 454-29-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9NO2S and a molecular weight of 135.185 g/mol. Key properties include a melting point of 232-233 °C(lit.), a boiling point of 299.7±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 135.0±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 454-29-5
- Jingsj CID
- J-1990622-0
- Molecular Formula
- C4H9NO2S
- Molecular Weight
- 135.185 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 232-233 °C(lit.) |
|---|---|
| Boiling Point | 299.7±35.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 135.0±25.9 °C |
| Exact Mass | 135.035400 |
| PSA | 102.12000 |
| LogP | 0.22 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.538 |
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. DL-Homocysteine, et al. Dual effect of DL-homocysteine and S-adenosylhomocysteine on brain synthesis of the glutamate receptor antagonist, kynurenic acid. J Neurosci Res. 2005 Feb 1;79(3):375-82. |
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 DL-Homocysteine?
The CAS number of DL-Homocysteine is 454-29-5.
What are the molecular formula and molecular weight of DL-Homocysteine?
DL-Homocysteine has molecular formula C4H9NO2S and molecular weight 135.185 g/mol.
What are the upstream and downstream products of DL-Homocysteine?
For DL-Homocysteine, Upstream Products: 2(3H)-Furanone,3-aminodihydro-(8CI,9CI), DL-Homocystine, DL-Homocysteine thiolactone hydrochloride; Downstream Products: D-Methionine, L-Methionine, S-Adenosyl-L-homocysteine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "DL-Homocysteine (CAS 454-29-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990622-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.