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	Cholecalciferol Powder	-
CAS No.	67-97-0	-
Appearance	White to off-white free-flowing powder	Visual Inspection
Key Specifications
Assay (Potency)	100,000 IU/g ± 5%	HPLC
Loss on Drying	≤ 5.0%	USP <731>
Mesh Size	100% through 80 mesh	USP <786>
Solubility	Soluble in oils, insoluble in water	EP 2.9.12
Safety & Quality
Heavy Metals
- Lead (Pb)	≤ 3.0 mg/kg	USP <223>
- Arsenic (As)	≤ 3.0 mg/kg	USP <223>
- Cadmium (Cd)	≤ 1.0 mg/kg	ICP-MS
- Mercury (Hg)	≤ 0.1 mg/kg	ICP-MS
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 Cholecalciferol Powder product profile. We also provide customization options—including different potency levels (50,000 IU/g to 1,000,000 IU/g) and particle size distributions—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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