Threonine (data page)

The complete data for Threonine

General information

Chemical formula: C₄H₉N O₃
Molar mass: 119.12 g·mol⁻¹
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 ^a

PubChem: 69435 (D) ^a, 6288 (L) ^a

Physical properties

Structure

Crystal data

Spectral data

UV-Vis

NMR

Phase behavior

Solid properties

T_m: 256 °C

Liquid properties

Gas properties

Hazard properties

MSDS N/A

Main hazards:

- N/A

NFPA 704

Flash point

- N/A

R/S statement

R: N/A
S: N/A

RTECS number:
N/A

Chemical properties

XLogP: -3.036

pI: 5.60

pK_a: 2.20, 8.96

Tautomers:

Hydrogen bond: donor - 3; acceptor - 4

Pharmacological properties

Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

References

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

The encoded amino acid

General topics

By properties

Aliphatic	Branched-chain amino acids (Valine Isoleucine Leucine) Methionine Alanine Proline Glycine

Aromatic	Phenylalanine Tyrosine Tryptophan Histidine

Polar, uncharged	Asparagine Glutamine Serine Threonine

Positive charge (pK_a)	Lysine (≈10.8) Arginine (≈12.5) Histidine (≈6.1)

Negative charge (pK_a)	Aspartic acid (≈3.9) Glutamic acid (≈4.1) Cysteine (≈8.3) Tyrosine (≈10.1)

Other classifications

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