L(+)-allo-Threonine
Also known as: H-Allo-Thr-OH, Allo-Thr-OH, L(+)-allo-Threonine, L-allo-Threonine, L-Allothreonine, (2S,3S)-2-Amino-3-hydroxybutanoic acid, (2S,3S)-2-Amino-3-hydroxybutyric acid, L-allothreonin, allo-L-Threonine, H-L-ALLO-THR-OH, L-allothreonine
L(+)-allo-Threonine (CAS 28954-12-3) 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 272ºC (dec.), 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. It is listed by 2 suppliers, 1 of which publish reference prices, from 1.05 to 4,980.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 28954-12-3
- Jingsj CID
- J-31588-5
- Molecular Formula
- C4H9NO3
- Molecular Weight
- 119.119 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | >99.0%(LC) 100mg | ¥105.12 | $0.16 /mgBest ¥1.05/mg CNY | CN China MOQ 100mg | |
In Stock | 99% 250mg | ¥900.00 | $0.54 /mg ¥3.60/mg CNY | CN China MOQ 250mg | |
In Stock | 99% 500g | ¥2,690.00 | $0.81 /g ¥5.38/g CNY | CN China MOQ 500g |
Physicochemical Properties
| Melting Point | 272ºC (dec.) |
|---|---|
| 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 |
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 L(+)-allo-Threonine?
The CAS number of L(+)-allo-Threonine is 28954-12-3.
What are the molecular formula and molecular weight of L(+)-allo-Threonine?
L(+)-allo-Threonine has molecular formula C4H9NO3 and molecular weight 119.119 g/mol.
Which suppliers offer L(+)-allo-Threonine?
2 supplier(s) listed; reference unit price ¥1.05–4980.00 /mg.
What are the upstream and downstream products of L(+)-allo-Threonine?
For L(+)-allo-Threonine, Downstream Products: (R)-1,2-Butanediol, (S)-(+)-1,3-Butanediol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L(+)-allo-Threonine (CAS 28954-12-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31588-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.