L-IsoleucineCAS NO:73-32-5Chemical NameL-IsoleucineMolecular Structure
Molecular FormulaC6H13NO2Molecular Weight131.17CharacteristicsWhite crystals or crystalline powder,slightly bitter taste.Freely soluble in fomic acid ,soluble in water ,practically insoluble in ethanol and ether.Packing25㎏/drum,25㎏/cartonQuality StandardAJI92/USP28/EP5/FCCIV
Specification
Specific rotation[a]D20°
+39.5°~+41.5°
State of solution
Clear and colorless
(Tranamittance)
≥98.0%
Chloride(Cl)
≤0.02%
Ammonium(NH4)
≤0.02%
Sulfate(SO4)
≤0.020%
Iron(Fe)
≤10PPm
Heavy metals(Pb)
≤10PPm
Arsenic(As2O3)
≤1PPm
Other amio acids
Conforms
Loss on drying
≤0.20%
Residue on ignition (Sulfated)
≤0.10%
Assay
99.0~101.5%
PH
5.5~6.5
Boc-DL-Asp(OMe)-OH
(4S)-1-Fmoc-4-methyl-L-proline
Fmoc-Asn-OH
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