Cyanocobalamin Injection, USP is a sterile solution of cyanocobalamin for intramuscular or subcutaneous injection. Each mL contains 1,000 mcg cyanocobalamin.
Each vial also contains sodium chloride, 0.9%. Benzyl alcohol, 1.5%, is present as a preservative. Sodium hydroxide and/or hydrochloric acid may have been added during manufacture to adjust the pH (range 4.5-7.0).
Cyanocobalamin appears as dark red crystals or as an amorphous or crystalline red powder. It is very hygroscopic in the anhydrous form, and sparingly soluble in water (1:80). It is stable to autoclaving for short periods at 121 C. The vitamin B12 coenzymes are very unstable in light.
The chemical name is 5,6-dimethyl-benzimidazolyl cyanocobamide; the molecular formula is C63H88CON14O14P. The cobalt content is 4.34%. The molecular weight is 1355.39.
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I cannot find where aluminum is involed in the process of B-12 anywhere...
That is curious, because my bottle also says it has aluminum content.
Hmmmm...
I'll look some more.
PEACE