CAS73-32-5
FormulaCH3CH2CH(CH3)CH(NH2)COOH
SynonymAcetic acid, amino-s-butyl-, L-Isoleucine
Practically Insolublein alcohol
Slightly Solublein water
Assay98.5 - 101.5%
AppearanceCrystalline Powder
OdorOdorless
IronNMT 0.003%
TasteSlightly sweet then bitter
pH5.5 - 7.0
SulphateNMT 0.03%
ColorWhite
Sulphated AshNMT 0.3%
ChlorideNMT 0.05%
Total Heavy MetalsNMT 15 ppm
ArsenicNMT 1 ppm
MercuryNMT 0.1 ppm
LeadNMT 3 ppm
CadmiumNMT 1 ppm
Yeast and MoldNMT 100 cfu/g
Total Plate CountNMT 1,000 cfu/g
Specific Rotation+38.9 deg. to + 41.8 deg.
E. ColiAbsent
Salmonellaabsent
Loss on DryingNMT 0.3%
Insolubilityin ether
Melting Point283-284 c (dec.)
Molecular weight131.17