Merck
All Photos(1)

58879

Sigma-Aldrich

L-Isoleucine

BioUltra, ≥99.5% (NT)

Synonym(s):
(2S,3S)-2-Amino-3-methylpentanoic acid
Linear Formula:
C2H5CH(CH3)CH(NH2)CO2H
CAS Number:
Molecular Weight:
131.17
Beilstein:
1721792
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26

product line

BioUltra

Quality Level

Assay

≥99.5% (NT)
≥99.5% (TLC)

form

powder or crystals

optical activity

[α]20/D +41.0±1°, c = 5% in 6 M HCl

impurities

insoluble matter, passes filter test
≤0.5% foreign amino acids

ign. residue

0.05%

loss

0.05% loss on drying, 20 °C (HV)

color

white

mp

288 °C (dec.) (lit.)

solubility

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

anion traces

chloride (Cl-): ≤100 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: ≤10 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+: ≤100 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in 1 M HCl

UV absorption

λ: 260 nm Amax: 0.07
λ: 280 nm Amax: 0.05

SMILES string

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

InChI

1S/C6H13NO2/c1-3-4(2)5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t4-,5-/m0/s1

InChI key

AGPKZVBTJJNPAG-WHFBIAKZSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

1 of 4

This Item
I2752W52760256241
L-Isoleucine BioUltra, ≥99.5% (NT)

Sigma-Aldrich

58879

L-Isoleucine

L-Isoleucine reagent grade, ≥98% (HPLC)

Sigma-Aldrich

I2752

L-Isoleucine

L-Isoleucine 99%, FCC, FG

Sigma-Aldrich

W527602

L-Isoleucine

L-Isoleucine certified reference material, TraceCERT®

Supelco

56241

L-Isoleucine

product line

BioUltra

product line

-

product line

-

product line

TraceCERT®

assay

≥99.5% (NT), ≥99.5% (TLC)

assay

≥98% (HPLC)

assay

99%

assay

-

form

powder or crystals

form

powder

form

crystalline powder

form

-

optical activity

[α]20/D +41.0±1°, c = 5% in 6 M HCl

optical activity

-

optical activity

[α]20/D +38.6 to +42.5°, c = 4 in 6 M HCl

optical activity

-

impurities

insoluble matter, passes filter test, ≤0.5% foreign amino acids

impurities

-

impurities

-

impurities

-

color

white

color

white

color

-

color

white

Other Notes

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service