DL-Threonine
Also known as: (±)-Threonine, 2-Amino-3-hydroxybutanoic acid, DL-2-Amino-3-hydroxybutyric acid, DL-α-Amino-β-hydroxybutyric acid, H-DL-Thr-OH, rac-Threonine, Threonine, DL-
DL-Threonine (CAS 80-68-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9NO3 and a molecular weight of 119.119 g/mol. Key properties include a melting point of 244 °C (dec.)(lit.), a boiling point of 345.8±32.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 162.9±25.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 80-68-2
- Jingsj CID
- J-35686-8
- Molecular Formula
- C4H9NO3
- Molecular Weight
- 119.119 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 244 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 345.8±32.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 162.9±25.1 °C |
| Exact Mass | 119.058243 |
| PSA | 83.55000 |
| LogP | -1.23 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.507 |
| Storage Conditions | Store at RT. |
| Additional Property | 200 g/L (25 ºC) |
Activity & Biological Data
| Additional Information | [1]. Harvey SG, et al. L-cysteine, glycine and dl-threonine in the treatment of hypostatic leg ulceration: a placebo-controlled study. Pharmatherapeutica, 01 Jan 1985, 4(4):227-230. |
|---|
Customs & Trade Information
| HS Code | 2922509090 |
|---|---|
| Summary | 2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. 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-Threonine?
The CAS number of DL-Threonine is 80-68-2.
What are the molecular formula and molecular weight of DL-Threonine?
DL-Threonine has molecular formula C4H9NO3 and molecular weight 119.119 g/mol.
What are the upstream and downstream products of DL-Threonine?
For DL-Threonine, Downstream Products: Dansyl-L-threonine piperidinium salt, D-Threonine, L-Threonine.
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-Threonine (CAS 80-68-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35686-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.