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L-Threonine

Catalog No. 89179 Name Sigma Aldrich
CAS Number 72-19-5 Website http://www.sigmaaldrich.com
M. F. C4H9NO3 Telephone 1-800-521-8956
M. W. 119.11916 Fax
Purity ≥99.5% (NT) Email
Storage Chembase ID: 42

SYNONYMS

Title
L-苏氨酸
IUPAC name
(2S,3R)-2-amino-3-hydroxybutanoic acid
IUPAC Traditional name
L-threonine
Synonyms
(2S,3R)-2-Amino-3-hydroxybutyric acid
(2S,3R)-2-氨基-3-羟基丁酸

DATABASE IDS

PubChem SID 24889191
EC Number 200-774-1
MDL Number MFCD00064270
CAS Number 72-19-5
Beilstein Number 1721646

PROPERTIES

Antion Traces chloride (Cl-): ≤50 mg/kg
Antion Traces sulfate (SO42-): ≤100 mg/kg
Cation Traces Al: ≤5 mg/kg
Cation Traces As: ≤0.1 mg/kg
Cation Traces Ba: ≤5 mg/kg
Cation Traces Bi: ≤5 mg/kg
Cation Traces Ca: ≤50 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces K: ≤50 mg/kg
Cation Traces Li: ≤5 mg/kg
Cation Traces Mg: ≤5 mg/kg
Cation Traces Mn: ≤5 mg/kg
Cation Traces Mo: ≤5 mg/kg
Cation Traces NH4+: ≤500 mg/kg
Cation Traces Na: ≤50 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Sr: ≤5 mg/kg
Cation Traces Zn: ≤5 mg/kg
Ignition Residue ≤0.1%
Impurities ≤0.5% foreign amino acids
Linear Formula CH3CH(OH)CH(NH2)CO2H
Loss on Drying ≤0.1% loss on drying, 20 °C (HV)
Product Line BioXtra
Purity ≥99.5% (NT)
Melting Point 256 °C (dec.)(lit.)
Optical Rotation [α]20/D -28.5±0.5°, c = 5% in H2O
Solubility H2O: soluble50 mg/mL, clear, colorless
MSDS Link Download
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
German water hazard class 1

DETAILS

Description (English)
Other Notes
Preparation of threonine-sepharose, assay and purification of protein kinase C1; Amino acid spacing in isotachophoresis on polyacrylamide gel - a critical evaluation2,3; Growth requirement of various microorganisms4.
Description (简体中文)
Other Notes
Preparation of threonine-sepharose, assay and purification of protein kinase C1; Amino acid spacing in isotachophoresis on polyacrylamide gel - a critical evaluation2,3; Growth requirement of various microorganisms4.

REFERENCES