Certificate of Analysis

Product Name L-CYSTINE 98.5% For Biochemistry
CAS Number 56-89-3
Molecular Formula C6H12N2O4S2
Catalogue No. AL00586
Molecular Weight 240.30 g/mol
Batch Number AL-2026-AL00586
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Description White powder or crystalline powder White powder
Assay(on dried basis) 99%w/w min 99.09%w/w
Loss on drying at 105°C 0.5 % max 0.06%
Sulphated ash 0.1% max 0.04%
Iron (Fe) 0.002% max < 0.002%
Lead ( Pb) 0.001% max < 0.001%
Result: The above product complies with LR grade

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
ISO Certifications