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Certificate of Analysis
Product Name: 4-Difluoromethoxy-3-hydroxybenzaldehyde Catalogue Number: GR-2758295
Batch Size: 490KG Lot Number: TR20240118
CAS Number: 151103-08-1 Production Date:
Molecular Formula: C8H6F2O3 Report Date: 2024-01-08
Molecular Weight: 188.13 Expiry Date:
Storage: Room temperature, Protected from light and Sealed


Test Items Specifieation Results
Appearance White to Off- white powder White powder
Melting point 87-91℃ 89.5℃
Water content ≤0.5% 0.19%
Impurity1 ≤0.1% 0.02%
Impurity2 ≤0.1% 0.004%
Single unknown impurity ≤0.2% 0.005%
Total impurity ≤0.5% 0.044%
Residual solvents(N,N-dimethylformamide) ≤0.088% Not detected
Residual solvents(Ethyl acetate) ≤0.5% Not detected
Residual solvents(Normal heptane) ≤0.5% Not detected
Purity(HPLC) ≥99.0% 99.96%
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