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GMP Amino Acid, GMP Manufactured Product 

Cystine(L) Dihydrochloride, GMP Grade


Product Code: LCYS-4250 

CAS #: 30925-07-6
Formula: C6H12N2O4S2·2HCl
MDL Number: MFC00070399
EC#: 250-391-9
F.W.: 313.22 g/mol


Minimum Order Quantity: 25kg (If No stock) | Package Sizes: 10kg and 25kg pails 

지오사이언스  T :  031-375-6493  E-Mail : info@gosci.co.kr

Intended For Use In Pharmaceutical GMP Processes and Products

  • L-Cystine is a dimer of two Cysteine residues and is a non-essential amino acid. It is synthesized from non-animal derived raw materials under appropriate controls for use in Pharm and Bio-Pharm production under a fully validated GMP manufacturing system. It is also suitable for cell culture media component for the commercial biomanufacturer of therapeutic recombinant proteins and monoclonal antibodies.

General Product Description:

  • L-Cystine dihydrochloride is a White to Pale Yellow Crystalline Powder.
  • Molecular Formula: C6H12N2O4S2·2HCl
  • Molecular Weight: 313.22 g/mol.
  • CAS Number: 30925-07-6

Physical and Chemical Properties:

  • Form: Solid
  • Color: White to Pale Yellow
  • Melting Point: 228-232 oC
  • Relative Density:1.5178 g/cm3at 20oC
  • Soluble in Water

GMP Compliance:

  • Bio Pharma Grade L-Cystine DiHydrochloride LCYS-4250 is suitable for use as a process chemical. It is GMP manufactured by the approved supplier in accordance with the approved supplier’s ISO 9001:2015 certified management system. This grade of L-Cystine DiHydrochloride is not suitable to be used as an Active Pharmaceutical Ingredient, Drug, Drug Product or Household Item.

Retest Date:

  • The recommended retest period for L-Cystine dihydrochloride is two years from the date of manufacture.

Storage and Shipping Conditions:

  • Keep away from heat. Keep away from sources of ignition. Keep container tightly closed, store in a dry and well ventilated place.

Package Sizes:

  • 10kg and 25kg pails

Bulk GMP Fine Chemicals exclusively manufactured in North America


American Manufactured - FDA Registered GMP Facilities: Parenteral Excipients, GMP Small Molecule Intermediates, GMP Biological Buffers, Parenteral Carbohydrates, GMP Chlorinated Amino Acids, GMP Solutions in Sterile Single Use Packaging and other Reagent & GMP Fine Chemicals.