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89179

Sigma-Aldrich

L-Threonine

BioXtra, ≥99.5% (NT)

Synonym(s):
(2S,3R)-2-Amino-3-hydroxybutyric acid
Linear Formula:
CH3CH(OH)CH(NH2)CO2H
CAS Number:
Molecular Weight:
119.12
Beilstein:
1721646
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26

Quality Level

product line

BioXtra

assay

≥99.5% (NT)

form

powder or crystals

optical activity

[α]20/D −28.5±0.5°, c = 5% in H2O

impurities

≤0.5% foreign amino acids

ign. residue

≤0.1%

loss

≤0.1% loss on drying, 20 °C (HV)

color

white to off-white

mp

256 °C (dec.) (lit.)

solubility

H2O: 50 mg/mL, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤500 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

C[C@@H](O)[C@H](N)C(O)=O

InChI

1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3+/m1/s1

InChI key

AYFVYJQAPQTCCC-GBXIJSLDSA-N

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Related Categories

Other Notes

Preparation of threonine-sepharose, assay and purification of protein kinase C; Amino acid spacing in isotachophoresis on polyacrylamide gel - a critical evaluation; Growth requirement of various microorganisms.

Storage Class Code

13 - Non Combustible Solids

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

CRC Handbook of Microbiology, 4, 1-1 (1974)
T. Hine et al.
Electrophoresis ?83, 541-541 (1984)
Assay and purification of protein kinase C.
T Kitano et al.
Methods in enzymology, 124, 349-352 (1986-01-01)
Amino acid spacing in isotachophoresi; on polyacrylamide gel: a critical evaluation.
N Y Nguyen et al.
Analytical biochemistry, 94(1), 202-210 (1979-04-01)
Tamara Seredenina et al.
Antioxidants & redox signaling, 23(5), 490-513 (2014-02-04)
Voltage-gated proton channels are increasingly implicated in cellular proton homeostasis. Proton currents were originally identified in snail neurons less than 40 years ago, and subsequently shown to play an important auxiliary role in the functioning of reactive oxygen species (ROS)-generating...

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