Cyanocobalamin (Vitamin B12) – CAS 68-19-9

Release time: 2025-07-22

Physicochemical properties

PropertyDescription
IUPAC NameCyanocobalamin; Vitamin B12; Cyanocob(III)alamin
CAS Number13422-55-4
Molecular FormulaC₆₃H₈₈CoN₁₄O₁₄P
Molecular Weight1355.37 g/mol
AppearanceDark red crystalline powder
Odor/TasteOdorless and tasteless
SolubilitySoluble in water and ethanol; insoluble in acetone, chloroform, and ether
Melting Point210–220 °C (decomposes/carbonizes)
Optical Rotation[α]D20​ = -59° ± 9° (in dilute aqueous solution)
Storage ConditionsStore at 2–8 °C, protected from light and moisture
Hazard SymbolsGHS02 (Flammable), GHS06 (Toxic), GHS08 (Health Hazard)

Application Areas

Medical use: mainly used to treat megaloblastic anemia, malnutrition, hemorrhagic anemia, neuralgia, and obstructive diseases.
Laboratory use: As a pharmaceutical raw material with a purity of over 98%, it meets USP standards

Storage conditions

Store away from light to prevent oxidation and failure.
After dissolution, it should be stored at -20 ℃ and recommended to use within one month.
Avoid moisture absorption (especially in an anhydrous state)

Safety precautions

Operation protection: Wear laboratory clothing and gloves to avoid inhalation or skin contact.
Toxicity warning: Antibiotics may interfere with their test results, and clinical monitoring should be taken into account.
Suggested solution: For scientific or medical purposes only, not for use in food or cosmetics

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