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Merck

W527602

L-Isoleucine

99%, FCC, FG

Synonym(s):

(2S,3S)-2-Amino-3-methylpentanoic acid

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About This Item

Linear Formula:
C2H5CH(CH3)CH(NH2)CO2H
CAS Number:
73-32-5
Molecular Weight:
131.17
NACRES:
NA.21
PubChem Substance ID:
24902116
eCl@ss:
32160406
UNSPSC Code:
12164502
EC Number:
200-798-2
MDL number:
MFCD00064222
Beilstein/REAXYS Number:
1721792
Organoleptic:
odorless
Grade:
FG
Biological source:
synthetic
Food allergen:
no known allergens

Key Documents

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Product Name

L-Isoleucine, 99%, FCC, FG

InChI key

AGPKZVBTJJNPAG-WHFBIAKZSA-N

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

SMILES string

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

biological source

synthetic

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

Quality Level

300

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Related Categories

Application


  • Enhanced protein-metabolite correlation analysis: To investigate the association between Staphylococcus aureus mastitis and metabolic immune pathways.: This article discusses the metabolic pathways associated with bacterial infections in livestock, potentially useful for chemists studying metabolic pathways and their linkage to immune responses (Chen et al., 2024).

  • Probing pharmaceutically important amino acids L-isoleucine and L-tyrosine Solubilities: Unraveling the solvation thermodynamics in diverse mixed solvent systems.: This study explores the solubility and solvation thermodynamics of l-isoleucine, providing critical data for chemists working with pharmaceutical formulations and solubility studies (Chakraborty et al., 2024).


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

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS9252
SHBS9249
SHBN9712
SHBN6246
SHBN6102

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Flavor components in buckwheat bread
Lin LY, et al
Journal of Food Processing and Preservation, 33(6), 814-826 (2009)
Zorn H and Czermak P
Biotechnology of Food and Feed Additives., 219-220 null
Eva Blomstrand et al.
The Journal of nutrition, 136(1 Suppl), 269S-273S (2005-12-21)
BCAAs (leucine, isoleucine, and valine), particularly leucine, have anabolic effects on protein metabolism by increasing the rate of protein synthesis and decreasing the rate of protein degradation in resting human muscle. Also, during recovery from endurance exercise, BCAAs were found
L Edvinsson
Blood vessels, 28(1-3), 35-45 (1991-01-01)
The cerebral circulation is supplied with two vasodilator systems: the parasympathetic system storing vasoactive intestinal peptide, peptide histidine isoleucine, acetylcholine and in a subpopulation of nerves neuropeptide Y, and the sensory system, mainly originating in the trigeminal ganglion, storing substance
Toshihiro Sato et al.
The Journal of biological chemistry, 278(6), 4314-4321 (2002-11-22)
Previously, we determined the crystal structures of the dimeric ligand binding region of the metabotropic glutamate receptor subtype 1. Each protomer binds l-glutamate within the crevice between the LB1 and LB2 domains. We proposed that the two different conformations of
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