D(-)-别-苏氨酸

Description

D(-)-allo-Threonine · CAS 24830-94-2 · C4H9NO3. UNII 760PJT2SS0.

Identification

CAS Registry Number	24830-94-2
PubChem CID	205
Molecular formula	C4H9NO3
IUPAC name	2-amino-3-hydroxybutanoic acid
UNII (FDA)	760PJT2SS0
JECFA number	2119

Computed Descriptors

Molecular Weight	119.12
XLogP3	-2.9
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	2
Exact Mass	119.058243149
Monoisotopic Mass	119.058243149
Topological Polar Surface Area	83.6
Heavy Atom Count	8
Formal Charge	0

Physical description & handling notes

• Hemihydrate: Solid; [Merck Index] White powder; [Sigma-Aldrich MSDS]
• White crystalline powder; slight savoury aroma
• Sparingly soluble in water; Soluble in buffer systems pH 5.5
• Practically insoluble (in ethanol)

Regulatory Status

Regulatory & Food Contact	Flavoring Agents
GHS notification summary	92.2% (214 / 232)

GHS Hazard Classification

GHS notification summary	92.2% (214 / 232)

Documented Uses

• An essential amino acid; [Merck Index]
• L-Threonine makes up collagen, elastin, and enamel protein. It aids proper fat metabolism in the liver, helps the digestive and intestinal tracts function more smoothly, and assists in metabolism and assimilation.
• Flavoring Agents -> JECFA Flavorings Index

Synonyms

2-amino-3-hydroxybutanoic acid; CHEBI:38263; DTXSID301015364; RefChem:463904; DTXCID40210085; DL-Threonine; 80-68-2; 7004-04-8; Allo-DL-threonine; DL-allo-Threonine; 144-98-9; DL-2-Amino-3-hydroxybutanoic acid; 2-amino-3-hydroxy-butanoic acid; Butanoic acid, 2-amino-3-hydroxy-; MFCD00066665; DL-Threonine (contains DL-Allothreonine)

Frequently Asked Questions

What are the CAS number and molecular formula of D(-)-allo-Threonine?

CAS 24830-94-2; molecular formula C4H9NO3; molecular weight — g/mol.

What other names is D(-)-allo-Threonine known by?

2-amino-3-hydroxybutanoic acid, CHEBI:38263, DTXSID301015364, RefChem:463904, DTXCID40210085, DL-Threonine.

What is the regulatory status of D(-)-allo-Threonine?

Documented regulatory listings: Flavoring Agents.

Is D(-)-allo-Threonine classified as hazardous?

92.2% of GHS notifications report no hazard classification (214 of 232).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.