Amino Acids

L-Alanine

CAS No.:56-41-7
HS Code:2922491990
Specification:AJI
Packing:25kg bag/drum/carton
Product description: L-Alanine
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Specification

Item	STANDARD
Identification, (IR)	Positive
Assay (C3H7NO2) ,%(on dried basis)	99.0~101.0
Specific rotation	+14.3°~ +15.°
State of solution, %	98.0
Chloride(as Cl),%	=<0.020
Ammonium (as NH4),%	=<0.02
Sulphate (as SO4),%	=<0.020
Iron(as Fe), ppm	=<10
Heavy metals (as Pb), ppm	=<10
Arsenic(as As2O3), ppm	=<1
Other amino acids	Meets the requirements
Loss on drying, %	=<0.20
Residue on ignition(as sulphated ash), %	=<0.10
pH value (1.0g/20mL water)	5.7~6.7

Details

L-Alanine

Alanine (abbreviated as Ala or A) is an α-amino acid with the chemical formula CH3CH(NH2)COOH. The L-isomer is one of the 20 amino acids encoded by the genetic code. Its codons are GCU, GCC, GCA, and GCG. It is classified as a non-polar amino acid. L-Alanine is second only to leucine in rate of occurrence, accounting for 7.8% of the primary structure in a sample of 1,150 proteins. D-Alanine occurs in bacterial cell walls and in some peptide antibiotics.

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