MilliporeSigma
All Photos(1)

W527602

Sigma-Aldrich

L-Isoleucine

99%, FCC, FG

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.21

biological source

synthetic

Quality Level

grade

FG

reg. compliance

EU Regulation 1334/2008 & 178/2002
FCC
FDA 21 CFR 172.320

Assay

99%

form

crystalline powder

optical activity

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

mp

288 °C (dec.) (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

odorless

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
I7403PHR109958879
L-Isoleucine 99%, FCC, FG

Sigma-Aldrich

W527602

L-Isoleucine

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

Sigma-Aldrich

I7403

L-Isoleucine

L-Isoleucine Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1099

L-Isoleucine

L-Isoleucine BioUltra, ≥99.5% (NT)

Sigma-Aldrich

58879

L-Isoleucine

biological source

synthetic

biological source

non-animal source

biological source

-

biological source

-

grade

FG

grade

-

grade

certified reference material, pharmaceutical secondary standard

grade

-

assay

99%

assay

98.5-101.0%

assay

-

assay

≥99.5% (NT), ≥99.5% (TLC)

optical activity

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

optical activity

-

optical activity

-

optical activity

[α]20/D +41.0±1°, c = 5% in 6 M HCl

mp

288 °C (dec.) (lit.)

mp

288 °C (dec.) (lit.)

mp

288 °C (dec.) (lit.)

mp

288 °C (dec.) (lit.)

documentation

see Safety & Documentation for available documents

documentation

-

documentation

-

documentation

-

General description

L-Isoleucine is an essential amino acid used as a supplement in sports nutrition. It is one of the free-amino acids found in common buckwheat.

Storage Class Code

13 - Non 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).

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