logo1.png TREERING GROUP LIMITED
Add:  Building C,No.888,Huanhu West 2nd Road,Lingang Special Area,China (Shanghai) Pilot Free Trade Zone.
Tel: +86 191 1634 4846    Website: www.treering.com.cn

Certificate of Analysis

Product Name:Vitamin B2Specification:98% Food
Batch No.:TR20255105Quantity:10,000 KGS
Production Date:Aug 28,2025Expiry Date:Aug 27,2027
ItemsTargetsResults
AppearanceYellow or orange-yellow crystalline powderConform
IdentificationPositiveConform
Assay (%)98.0 ~ 102.0100.2
Specific rotation (°)-115 ~ -135-129
Loss on drying (%)1.5 max0.45
Residue on ignition (%)0.3 max0.06
Lumiflavin440 nm Absorbance 0.025 max0.005

CONCLUSION: The goods conform the standard.
PACKING:  25 KGS/Carton
STORAGE:Store in a cool and dry place, away from light ,heat and oxygen.