- Chemical Name:L -Cysteine
- CAS Number:56-89-3
- Labeling Claims:Not Listed In California Proposition 65
L-Cystine, Cell Culture Grade is used in API manufacturing as a cell culture nutrient, amino acid, and catalyst. It supports cell growth and plays a role in various biochemical processes. Certified under the Clean Air Act (CAA) Section 112 and FDA regulations (40 CFR 122.21 and 40 CFR 122.42), it is listed in multiple chemical inventories, including AICS (Australia), DSL (Canada), EINECS (EU), ENCS (Japan), IECSC (China), KECI (Korea), PICCS (Philippines), and TSCA (USA), ensuring global regulatory compliance.