Witamina B12 w proszku 1%

Vitamin B12 (Cyanocobalamin)
Other Names: Cyanocobalamin, Cyanocob(III)alamin, DTXCID502434

CAS Number: 68-19-9
Sum Formula: C₆₃H₈₈CoN₁₄O₁₄P
Molar Mass: 1355.40 g/mol
Appearance: Dark red crystalline powder

Vitamin B12, in the form of cyanocobalamin, is a synthetic organometallic compound containing a cobalt(III) ion centrally coordinated within a corrin ring system. The cyano group (-CN) is coordinated axially to the cobalt center. It is the most chemically stable form of cobalamin and is widely studied in organometallic chemistry, bioinorganic research, and coordination complex applications.

Chemical and Physical Properties
Density: ~1.4 g/cm³ (estimated)
Melting Point: >200°C (decomposes)
Boiling Point: Not applicable (decomposes)
Solubility in Water: Freely soluble
Solubility in Other Solvents: Sparingly soluble in ethanol and methanol; insoluble in ether and chloroform
Odor: Odorless

Applications
Organometallic Chemistry: Model compound for studying cobalt coordination complexes and axial ligand exchange.
Analytical Chemistry: Used in redox and ligand-binding studies due to its metal-centered redox activity.
Chemical Synthesis: Precursor for preparation of other cobalamin derivatives (e.g., methylcobalamin, adenosylcobalamin).
Stabilizing Agent: Component in formulations requiring metal-stabilized macrocyclic systems.
Photochemical Studies: Studied for light-induced ligand dissociation and cobalt-based photochemistry.

Safety

This chemical does not meet GHS hazard criteria for 99.3% (151 of 152) of all reports.

Handling and Storage
Storage Conditions: Store in a light-protected, airtight container in a cool, dry, and well-ventilated place. Avoid exposure to moisture, strong oxidizers, and acidic or basic conditions.
Handling Precautions: Minimize exposure to air and light during handling. Use PPE and standard laboratory safety protocols. Handle in a fume hood for large-scale applications.