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	Ascorbic Acid (Vitamin C)	-
CAS No.	50-81-7	-
Molecular Formula	C₆H₈O₆	-
Key Specifications
Purity (by HPLC)	≥ 99.0%	HPLC
Appearance	White to slightly yellow crystalline powder	Visual Inspection
Particle Size	95% passing 80 mesh	Sieve Analysis
Loss on Drying	≤ 0.4%	Gravimetric Method
Specific Rotation	+20.5° to +21.5°	Polarimetric Method
Microbiological Quality
Total Aerobic Microbial Count	≤ 1,000 CFU/g	USP <61>
Total Combined Yeasts and Molds	≤ 100 CFU/g	USP <61>
Escherichia coli	Absent in 1g	USP <62>
Salmonella spp.	Absent in 10g	USP <62>
Heavy Metals & Contaminants
Lead (Pb)	≤ 1.0 mg/kg	ICP-MS
Arsenic (As)	≤ 0.5 mg/kg	ICP-MS
Cadmium (Cd)	≤ 0.5 mg/kg	ICP-MS
Mercury (Hg)	≤ 0.1 mg/kg	ICP-MS
Packaging & Services
Minimum Order Quantity (MOQ)	25 kg	-
Free Sample	Available (50-100g/bag)	-
Standard Packaging	25 kg/drum, 100 kg/drum	-
Shelf Life & Storage	24 months in a cool, dry place in original packaging	-
Custom Services	OEM, ODM, Private Label, Custom Blending	-

Note: The specifications above define our standard Ascorbic Acid product profile. We also provide customization options—such as adjustments to particle size distribution—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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Ascorbic Acid Vitamin C

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