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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Cobalamin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Cobalamin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Cobalamin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Cobalamin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cyanocobalamin 13C7 Stable Isotopes CS-BX-00266 68-19-9(Unlabeled) Enquire
Cyanocobalamin D6 Stable Isotopes CS-O-15870 68-19-9 (Unlabeled) Enquire
Mecobalamin-13CD3 Stable Isotopes CS-T-103726 13422-55-4(unlabelled) Enquire
Mecobalamin-d3 Stable Isotopes CS-T-93855 13422-55-4 (Unlabelled) Enquire
Methylcobalamin 13CD3 Stable Isotopes CS-CX-00015 13422-55-4 (Unlabeled) Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cyanocobalamin API Standards CS-O-01152 68-19-9 In Stock
Hydroxocobalamin Acetate API Standards CS-T-55823 22465-48-1 In Stock
Hydroxocobalamin Hydrochloride API Standards CS-EO-03609 59461-30-2 Enquire
Methylcobalamin API Standards CS-O-02549 13422-55-4 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
13-Hydroxylcyanocobalamin Impurities CS-EO-03111 Not Available Enquire
34-Methylcyanocobalamin Impurities CS-O-15109 38218-51-8 In Stock
5-Hydroxymethyl Hydroxocobalamin Impurities CS-O-58344 Not Available Enquire
6-Hydroxymethyl Hydroxocobalamin Impurities CS-O-58352 Not Available Enquire
8-Epi-cyanocobalamin Impurities CS-O-15110 41325-63-7 In Stock
8-Epihydroxocobalamin Impurities CS-O-55034 Not Available Enquire
Cyanocobalamin EP Impurity A Impurities CS-O-15108 23208-66-4 In Stock
Cyanocobalamin EP Impurity G Impurities CS-O-38025 15130-04-8 In Stock
Cyanocobalamin EP Impurity H Impurities CS-EO-01295 13422-51-0 Enquire
Cyanocobalamin Impurity A Impurities CS-O-15872 Not Available Enquire
Cyanocobalamin Impurity B Impurities CS-O-15873 Not Available Enquire
Cyanocobalamin Impurity C Impurities CS-O-15871 Not Available Enquire
Cyanocobalamin Impurity D Impurities CS-O-15874 23388-02-5 In Stock
Cyanocobalamin Impurity E Impurities CS-O-15875 106217-80-5 Enquire
Cyanocobalamin Oxidation Impurity Impurities CS-O-40427 Not Available Enquire
Cyanocobalamin-a-carboxylic Acid Impurities CS-T-90129 121483-62-3 Enquire
Cyanocobalamin-b-carboxylic Acid Impurities CS-O-15112 38218-77-8 In Stock
Cyanocobalamin-c-carboxylic acid Impurities CS-O-51840 38437-93-3 Enquire
Cyanocobalamin-d-carbonic acid pyridoxine ester Impurities CS-O-35004 Not Available Enquire
Cyanocobalamin-d-carboxylic Acid Impurities CS-O-33480 38218-55-2 Enquire
Cyanocobalamin-e-carboxylic Acid Impurities CS-O-15111 26264-28-8 In Stock
Cyanocobalamin-g-carboxylic acid Impurities CS-O-51841 58206-91-0 Enquire
Hydroxocobalamin Hydrochloride Impurities CS-P-01222 58288-50-9 In Stock
Mecobalamin impurity Impurities CS-O-35044 Not Available Enquire
Methylcobalamin Impurity 1 Impurities CS-O-58106 17234-76-3 Enquire
Methylcobalamin Impurity 5 Impurities CS-O-59992 13082-84-3 Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cyanocobalamin (C3000000) EP Standards CS-EG-00411 68-19-9 Enquire
Cyanocobalamin for peak identification (Y0002203) EP Standards CS-EG-03050 68-19-9 Enquire
Cyanocobalamin for system suitability (Y0002204) EP Standards CS-EG-03048 68-19-9 Enquire
Cyanocobalamine For Peak Identification (Containing Impurit... EP Standards CS-EG-03171 Not Available Enquire
Cyanocobalamine For System Suitability CRS (Containing Impur... EP Standards CS-EG-03170 Not Available Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Hydroxocobalamin Intermediates CS-T-79488 13422-51-0 In Stock
Nitritocobalamin (~90% by HPLC) Intermediates CS-T-82815 20623-13-6 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Sulphitocobalamin Building Blocks CS-RS-00049 15671-27-9 Enquire