PRODUCT NAME: Cyanocobalamin EP Impurity B
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	CYB-001
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	26264-28-8
Mol. Formula	C₆₃H₈₇CoN₁₃O₁₅P
Molecular Wt	1356.35
IUPAC	cobalt(3+);[5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] 1-[3-[(4Z,9Z,14Z)-2,13,18-tris(2-amino-2-oxoethyl)-12,17-bis(3-a
Synonyms	Co-​(cyano-​κC)​-​cobinic acid-​abcdg-​pentamide dihydrogen phosphate (ester)​, inner salt, 3'-​ester with (5,​6-​dimethyl-​1-​α-​D-​ribofuranosyl-​1H-​benzimidazole-​κN3); Cobinic acid-abcdg-pentamide, cyanide hydroxide, dihydrogen phosphate (ester), inner salt, 3'-ester with 5,6-dimethyl-1-α-D-ribofuranosylbenzimidazole; Cobinic acid-abcdg-pentamide, cyanide, dihydrogen phosphate (ester), inner salt, 3'-ester with 5,6-dimethyl-1-α-D-ribofuranosyl-1H-benzimidazole; Cobalamin-monocarboxylic acid
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Dark Red Solid
Water content by KF/TGA	Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility	Aqueous Base (Slightly), Methanol (Slightly)
Purity	98 % by
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption