Cyanocobalamin Vitamin B12 99% USP/Ep Grade

• Certification: ISO
• Shape: Powder
• Function: Vitamin Additives
• Type: Vitamin
• Quality Standard: USP/Ep
• Transport Package: Carton, Drum
• Model NO.: 68-19-9
• Specification: 25Kg
• Origin: China
• HS Code: 2936260000
• Production Capacity: 100, 000kg/Year

Product Description

Product Name               Cyanocobalamin
Alias                                 Vitamin B12
Molecular Formula        C₆₃H₈₈CoN₁₄O₁₄P
Molecular Weight          1355.3652
CAS No.                           68-19-9
Shelf Life                         2 years  
Quality Standard           USP/EP

Specification:

Analytical Items	Standard
Appearance	Dark red crystals or amorphous or crystalline red powder
Identification A	UV: The absorption spectrum exhibits maxima at 278±1nm, 361±1nm and 550±1nm
	A361 nm/A278 nm : 1.70 - 1.90 A361 nm/A550 nm : 3.15 - 3.40
Identification B	Cobalt: Meets USP requirements
Identification C	HPLC: The retention time of the major peak of the sample solution corresponds to that of the standard solution.
Loss on drying	≤10.0%
Related substances	Total impurities ≤3.0%
	7 ß, 8 ß - Lactocyanocobalamin ≤1.0%
	34-Methylcyanocobalamin ≤2.0%
	8-Epi-cyanocobalamin ≤1.0%
	Any other unidentified impurity and 50-Carboxycyanocobalamin, 32-Carboxycyanocobalamin ≤0.5%
Acetone	≤5000ppm
Total aerobic microbial count	≤1000cfu/g
Total combined yeasts/mould count	≤100cfu/g
Assay	97.0% - 102.0%

Application:  
Mainly used in medicine, food and feed additives.

Packing: 
25kg/drum

Storage: 
Store in tightly closed original container, protected from light, in a dry place.