Active ingredientCysteine Hydrochloride MonohydrateCat. No. P-C278-001CAS 7048-04-6Family · Pharmaceutical analytical standards
Cysteine
A sulphur-containing amino acid, isolated in 1884 by Eugen Baumann: its thiol group forms the disulphide bridges that stabilise proteins such as the keratin of hair and nails. It is also a building block of glutathione, the main antioxidant of cells. This family brings together the active ingredient, labelled standards and other impurities.
Did you know?Its name comes from the Greek kustis, bladder: its double form, cystine, was discovered in 1810 by William Hyde Wollaston in a urinary stone and called "cystic oxide".
Go to the active ingredient →Active ingredientCysteine Hydrochloride MonohydrateCat. No. P-C278-001CAS 7048-04-6
Isotopically labelledDL-Phenylmercapturic Acid-d5Cat. No. P-C278-002
Isotopically labelledN-(Acetyl-d3)-S-(3-Oxopropyl)-L-CysteineCat. No. P-C278-004
Isotopically labelledN-Acetyl-S-(2-hydroxypropyl)Cysteine-d6 Dicyclohexylammonium SaltCat. No. P-C278-005
Isotopically labelledN-Acetyl-S-Benzyl-L-Cysteine-d5Cat. No. P-C278-006CAS 1955496-81-7
Isotopically labelledS-Methyl-L-Cysteine S-oxide-13C-d3Cat. No. P-C278-009
Impurity(2R)-HMPMA (Mixture of Diastereomers)Cat. No. P-C278-010CAS 33164-64-6
Impurity2-(Methylideneamino)ethane-1-thiolCat. No. P-C278-011CAS 851189-30-5
ImpurityCysteine Impurity 1Cat. No. P-C278-012
ImpurityCysteine Impurity 2Cat. No. P-C278-013
ImpurityCysteine Impurity 3Cat. No. P-C278-014
ImpurityCysteine Impurity 4Cat. No. P-C278-015
ImpurityCysteine Impurity 5Cat. No. P-C278-016
ImpurityCysteine Impurity 6 TrifluoroacetateCat. No. P-C278-017
ImpurityCysteine Sulfenic AcidCat. No. P-C278-018CAS 73243-12-6
ImpurityD-CysteineCat. No. P-C278-019CAS 921-01-7
ImpurityD-Cysteine Methyl Ester HClCat. No. P-C278-020CAS 70361-61-4
ImpurityFmoc-S-acetamidomethyl-L-cysteineCat. No. P-C278-021CAS 86060-81-3
ImpurityGlycylglycylglycyl-L-cysteineCat. No. P-C278-022CAS 245447-20-5
Active ingredientL-Cysteine HydrochlorideCat. No. P-C278-023CAS 52-89-1
ImpurityL-Cysteine S-SulfateCat. No. P-C278-024CAS 1637-71-4
ImpurityL-Cysteine Sulfinic Acid 2Cat. No. P-C278-025CAS 1315057-92-1
ImpurityL-Cysteine, N-acetyl-S-(2-oxopropyl)Cat. No. P-C278-026CAS 45122-45-0
ImpurityCysteine Impurity 7Cat. No. P-C278-027CAS 232617-16-2
ImpurityCysteine Impurity 8Cat. No. P-C278-028CAS 846568-65-8
ImpurityL-Cysteine-D-penicillamine DisulfideCat. No. P-C278-029CAS 18840-45-4
ImpurityL-Cysteine-D-Xylose AdductCat. No. P-C278-030CAS 846568-62-5
ImpurityL-Cysteinyl-L-Cysteine TrifluoroacetateCat. No. P-C278-031
ImpurityL-gamma-Glutamyl-(S)-Allyl-CysteineCat. No. P-C278-032CAS 91216-95-4
ImpurityMecysteine HClCat. No. P-C278-033CAS 18598-63-5
ImpurityN,S-Carboxymethyl D-Cysteine HClCat. No. P-C278-036
ImpurityN,S-Carboxymethyl L-CysteineCat. No. P-C278-037
ImpurityN,S-Carboxymethyl L-Cysteine HClCat. No. P-C278-038
ImpurityN,S-Carboxymethyl rac-Cysteine HClCat. No. P-C278-039
ImpurityN-Acetyl-S-(1-oxopropyl)-L-cysteineCat. No. P-C278-040CAS 7280-90-2
ImpurityN-Acetyl-S-(2-hydroxy-3-methyl-3-buten-1-yl)-L-cysteineCat. No. P-C278-042CAS 2002427-60-1
ImpurityN-Acetyl-S-3-HydroxypropylcysteineCat. No. P-C278-043CAS 23127-40-4
ImpurityN-Carbobenzoxy-S-Phenyl-L-Cysteine Methyl EsterCat. No. P-C278-044CAS 153277-33-9
Impurityrac-CarbocysteineCat. No. P-C278-045CAS 2387-59-9
ImpurityS-(1,2,2-Trichlorovinyl)-CysteineCat. No. P-C278-046CAS 98025-31-1
ImpurityS-(trans-1,2-Dichlorovinyl)-L-CysteineCat. No. P-C278-047CAS 13419-46-0
ImpurityS-(1,2-Dichlorovinyl)-Cysteine HClCat. No. P-C278-048CAS 2508026-62-6
ImpurityS-(2-Thiazolyl)-L-CysteineCat. No. P-C278-049CAS 405150-20-1![S-[(Acetylamino)methyl]-N-Fmoc-D-cysteine](https://img.vitasanlabs.com/vsl-struct/P-C278-050.svg?v=41e934f030)
ImpurityS-[(Acetylamino)methyl]-N-Fmoc-D-cysteineCat. No. P-C278-050CAS 168300-88-7
ImpurityS-Acetyl-D-Cysteine HClCat. No. P-C278-051
ImpurityS-Allyl-L-cysteine sulfoxideCat. No. P-C278-052CAS 556-27-4
ImpurityS-Benzyl-L-CysteineCat. No. P-C278-053CAS 3054-01-1
ImpurityS-Carboxypropyl-L-Cysteine-(R)-SulfoxideCat. No. P-C278-054
ImpurityS-Carboxypropyl-L-Cysteine-(S)-SulfoxideCat. No. P-C278-055
ImpurityS-Methyl-L-Cysteine-S-oxideCat. No. P-C278-056CAS 6853-87-8
ImpurityFmoc-S-trityl-L-cysteineCat. No. P-C278-057CAS 103213-32-7
ImpurityThiazolidineCat. No. P-C278-059CAS 504-78-9No product matches your search.
EDQM standards 1
The official European Pharmacopoeia standards for this family.
Reference substanceCysteine hydrochloride monohydrate CRSEDQM code C3290000Family CysteineNeed a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.