<small>DL</small>-Threonine (contains <small>DL</small>-Allothreonine) , >97.0%(T) , 80-68-2
Synonym(s):
(±)-2-Amino-3-hydroxybutyric acid
CAS NO.：80-68-2
Empirical Formula: C4H9NO3
Molecular Weight: 119.12
MDL number: MFCD00063722
EINECS: 201-300-6
| Pack Size | Price | Stock | Quantity |
| 5g | RMB21.60 | In Stock |
|
| 25G | RMB49.60 | In Stock |
|
| 100G | RMB156.80 | In Stock |
|
| 500g | RMB756.00 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 244 °C (dec.)(lit.) |
| Boiling point: | 222.38°C (rough estimate) |
| alpha | [α]D20 0±1.0゜ (c=6, H2O) |
| Density | 1.3126 (rough estimate) |
| refractive index | 1.4183 (estimate) |
| storage temp. | Store at RT. |
| solubility | Soluble in water, Insoluble in absolute alcohol and oils |
| pka | 2.09(at 25℃) |
| form | Powder |
| color | White |
| Water Solubility | 200 g/L (25 ºC) |
| Merck | 14,9380 |
| BRN | 1721647 |
| LogP | -1.136 (est) |
| CAS DataBase Reference | 80-68-2(CAS DataBase Reference) |
| NIST Chemistry Reference | DL-Threonine(80-68-2) |
| EPA Substance Registry System | Threonine (80-68-2) |
Description and Uses
Threonine (abbreviated as Thr or T) is an α-amino acid with the chemical formula HO2CCH(NH2)CH(OH)CH3. Its codons are ACU, ACA, ACC, and ACG. This essential amino acid is classified as polar. Together with serine, threonine is one of two proteinogenic amino acids bearing an alcohol group (tyrosine is not an alcohol but a phenol, since its hydroxyl group is bonded directly to an aromatic ring, giving it different acid/base and oxidative properties). It is also one of two common amino acids that bear a chiral side chain, along with isoleucine.
The threonine residue is susceptible to numerous posttr anslational modifications. The hydroxy side-chain can undergo Olinked glycosylation. In addition, threonine residues undergo phospho rylation through the action of a threonine kinase. In its phosphorylated form, it can be referred to as phospho threonine.
DL-Threonine is used as a polar essential amino acid. It serves as a precursor of glycine as well as used in the biosynthesis of proteins. Further, it is used for biochemical research. In addition to this, it is used as a nutrition enhancer.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25-37/39-26 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29225000 |
