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The complete data for Threonine ( v )
	General informationChemical formula: C4H9NO3 Molar mass: 119.12 g·mol Systematic name: (2S,3R)-2-Amino-3-hydroxybutanoic acid Abbreviations: T, Thr Synonyms: none
Database data
SMILES: CC(O)C(N)C(=O)O InChI=1/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3+/m1/s1/f/h7H ATC: N/A CAS: 72-19-5 DrugBank: N/A EINECS: 200-774-1 PubChem: 69435 (D) , 6288 (L)
Physical properties
Structure Crystal data Spectral data UV-Vis IR NMR MS Phase behavior Solid properties Tm: 256 °C Liquid properties Gas properties
Hazard properties
MSDS N/A Main hazards:- N/A NFPA 704 Flash point- N/A RTECS number: N/A
Chemical properties
XLogP: -3.036 pI: 5.60 pKa: 2.20, 8.96 Tautomers: Hydrogen bond: donor - 3;  acceptor - 4
Pharmacological properties

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• Except where noted otherwise, data relate to Standard temperature and pressure.
• Reliability of data general note.

References

1. ^a EINECS number 200-774-1 (Threonine)
2. ^a CID 69435 from PubChem (D-Threonine)
3. ^a CID 6288 from PubChem (L-Threonine)

v t e Encoded (proteinogenic) amino acids
General topics	Protein Peptide Genetic code
By properties	Aliphatic Branched-chain amino acids (Valine Isoleucine Leucine) Methionine Alanine Proline Glycine Aromatic Histidine Tyrosine Tryptophan Phenylalanine Polar, uncharged Asparagine Glutamine Serine Threonine Positive charge (pKa) Lysine (≈10.8) Arginine (≈12.5) Histidine (≈6.1) Pyrrolysine Negative charge (pKa) Aspartic acid (≈3.9) Glutamic acid (≈4.1) Selenocysteine (≈5.4) Cysteine (≈8.3) Tyrosine (≈10.1)
Amino acids types: Encoded (proteins) Essential Non-proteinogenic Ketogenic Glucogenic Secondary amino Imino acids D-amino acids Dehydroamino acids

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