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L-cystine-dihydrochloride Biopharma Grade CAS 30925-07-6 EINECS No. : 250-391-9 Manufacture of fine chemicals. Formula : C6H12N2O4S2.2HCl It is organic-sulphur compound It is a white to slightly yellow crystalline powder EINECS No. : 250-391-9 Molecular weight : 313.22 g/mol Assay (Dried Basis) : 98.0 - 102.0%

L-CYSTEINE HYDROCHLORIDE (CAS NUMBER 52-90-4) IS PRODUCED BY METHOD OF STARTING MATERIAL CYSTEINE AND HYDROCHLORIC ACID. THE PURITY OF THE PRODUCT IS 100 %. BASED ON THE ENCLOSED CERTIFICATE OF ANALYSIS, THE PRODUCT CONSIST OF: - ASSAY 99,0% - 100,5% - CHLORIDE 19,89 - 20,29% - SULFATE ≤ 0,02% - ASH ≤ 0,1% - THE PRODUCT CYSTEINE IS LISTED ON THE INN LIST MENTIONED IN ANNEX 3 AND THE HYDROCHLORIDE IS A PREFIX AND/OR SUFFIX AS MENTIONED AND ALLOWED IN ANNEX 4 OF THE ANNUAL AMENDMENT OF COUNCIL REGULATION (EEC) NO 2658/87 ON THE TARIFF AND STATISTICAL NOMENCLATURE. IT'S A BULK POWDER, PACKED IN DRUMS OF 25 KILOGRAM NET WEIGHT. THE PRODUCT IS USED AS ADDITIVE FOR THE FOOD AND BEVERAGE INDUSTRY.

L-CYSTINE DIHYDROCHLORIDE IS AN AMINO ACID REQUIRED TO MAINTAIN CELL CULTURE. STATE : WHITE TO SLIGHTLY YELLOW CRYSTALLINE POWDER

MATERIAL IS AN AMINO ACID DERIVATIVE, PRODUCT OF THE CHEMICAL INDUSTRY. MATERIAL NAME: FMOC-L-CYSTEINE (FCYSBU). PHYSICAL STATE: SOLID. APPEARANCE: WHITE TO OFF-WHITE POWDER CAS NUMBER; 73724-43-3

FCYSBU (3-[1,1-DIMETHYLETHYL)DITHIO]-N-[(9H-FLUOREN-9-YLMETHOXY)CARBONYL]-L-ALANINE)IS USED IN THE PRODUCTION OF A DRUG SUBSTANCE IN THE PHARMACEUTICAL INDUSTRY CAS NUMBER: 73724-43-3 PHYSICAL STATE: SOLID AND WHITE PRODUCT CATEGORY: RAW MATERIAL/CHEMCIAL INTERMEDIATE