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94619

Sigma-Aldrich

L-Valine

BioUltra, ≥99.5% (NT)

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Synonym(s):
(S)-α-Aminoisovaleric acid, L-2-Amino-3-methylbutanoic acid
Linear Formula:
(CH3)2CHCH(NH2)CO2H
CAS Number:
Molecular Weight:
117.15
Beilstein:
1721136
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26

product line

BioUltra

Assay

≥99.5% (NT)

form

powder or crystals

optical activity

[α]20/D +27.0±0.5°, c = 5% in 5 M HCl

impurities

insoluble matter, passes filter test
≤0.3% foreign amino acids

ign. residue

≤0.05%

loss

≤0.05% loss on drying, 20 °C (HV)

color

white

mp

295-300 °C (subl.) (lit.)

solubility

1 M HCl: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 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+: ≤150 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.5 M in 1 M HCl

UV absorption

λ: 260 nm Amax: 0.15
λ: 280 nm Amax: 0.1

SMILES string

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

InChI

1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)/t4-/m0/s1

InChI key

KZSNJWFQEVHDMF-BYPYZUCNSA-N

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1 of 4

This Item
V0500V0513V4638
L-Valine BioUltra, ≥99.5% (NT)

Sigma-Aldrich

94619

L-Valine

Premium Grade
L-Valine reagent grade, ≥98% (HPLC)

Sigma-Aldrich

V0500

L-Valine

Essential Grade
L-Valine from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 98.5-101.0%

Sigma-Aldrich

V0513

L-Valine

-
L-Valine

SAFC

V4638

L-Valine

-
assay

≥99.5% (NT)

assay

≥98% (HPLC)

assay

98.5-101.0%

assay

≥98.5%

form

powder or crystals

form

powder

form

powder

form

powder

optical activity

[α]20/D +27.0±0.5°, c = 5% in 5 M HCl

optical activity

-

optical activity

-

optical activity

-

impurities

insoluble matter, passes filter test, ≤0.3% foreign amino acids

impurities

-

impurities

endotoxin, tested

impurities

endotoxin, heavy metals, trace metals, residual solvents, tested

color

white

color

white

color

white

color

-

Other Notes

Protects enzymes against heat inactivation; As spacer in isotachophoresis of serum proteins; Growth requirement of various microorganisms

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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CRC Handbook of Microbiology, 4, 1-1 (1974)
T. Hine
Electrophoresis ?83, 541-541 null
T. Yagi et al. et al.
Electrophoresis ?83, 503-503 (1984)
L.G. Paleg et al.
Australian Journal of Plant Physiology, 8, 107-107 (1981)
Shankar Sachidhanandam et al.
Nature neuroscience, 16(11), 1671-1677 (2013-10-08)
Neocortical activity can evoke sensory percepts, but the cellular mechanisms remain poorly understood. We trained mice to detect single brief whisker stimuli and report perceived stimuli by licking to obtain a reward. Pharmacological inactivation and optogenetic stimulation demonstrated a causal

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