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	Galacto-oligosaccharides Powder	-
CAS No.	6587-31-1	-
Molecular Formula	(C6H10O5)n	-
Key Specifications
Assay (GOS Content, on dry basis)	≥ 90.0%	HPLC
Appearance	White to off-white fine powder	Visual Inspection
Loss on Drying	≤ 5.0%	Gravimetric method
pH (10% solution)	4.5 - 6.5	Potentiometric
Safety & Quality
Heavy Metals
- Lead (Pb)	≤ 1.0 mg/kg	ICP-MS
- Arsenic (As)	≤ 0.5 mg/kg	ICP-MS
- Cadmium (Cd)	≤ 0.5 mg/kg	ICP-MS
Total Plate Count	< 3,000 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 GOS Powder product profile. We also provide customization options—such as adjustments to particle size distribution and packaging—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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