108641-83-4

Hazard Information

Questions And Answer

• Preparation

  DL-Cystine-d4 is found in keratin, hair, wool, and gelatin. Industrially, it is produced through hydrolysis extraction. This involves hydrolyzing hair (or feather powder, etc.) with hydrochloric acid, followed by decolorization with activated carbon, filtration, and neutralization with ammonia water to obtain the DL-Cystine-d4.;

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