For B2B partners requiring detailed technical documentation. A comprehensive, batch-specific Certificate of Analysis (COA) will be provided promptly upon request.

Parameter	Specification	Test Method
Identity
Product Name	Vitamin B12 Methylcobalamin Powder	-
CAS No.	13422-55-4	-
Molecular Formula	C₆₃H₉₁CoN₁₃O₁₄P	-
Key Specifications
Purity (HPLC)	98.0% - 101.0%	HPLC
Appearance	Dark red to reddish-brown crystalline powder	Visual Inspection
Loss on Drying	≤ 1.5%	Karl Fischer Titration
Specific Rotation	+103° to +112°	Polarimetric method
Safety & Quality
Heavy Metals
- Lead (Pb)	≤ 3.0 mg/kg	ICP-MS
- Arsenic (As)	≤ 1.0 mg/kg	ICP-MS
- Cadmium (Cd)	≤ 1.0 mg/kg	ICP-MS
- Mercury (Hg)	≤ 0.1 mg/kg	ICP-MS
Residue on Ignition	≤ 0.1%	Gravimetric method
Total Plate Count	< 1000 CFU/g	USP <61>
Yeast & Mold	< 100 CFU/g	USP <61>
E. Coli	Negative	USP <62>
Salmonella	Negative	USP <62>
Certifications	ISO 9001, GMP (Certificates available upon request)	Audit Certification

Note: The specifications above define our standard Vitamin B12 Methylcobalamin product profile. We also provide customization options—such as adjustments to purity and particle size—to meet specific formulation requirements. Contact us to request the full Certificate of Analysis (COA) for detailed, batch-specific data and supporting compliance documentation.

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Vitamin B12 Methylcobalamin

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