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Certificate of Analysis
Product Name: Itaconic acid Catalogue Number: GR-811
Batch Size: N/A Lot Number: 20230101
CAS Number: 97-65-4 Production Date:
Molecular Formula: C5H6O4 Report Date: 2023-01-01
Molecular Weight: 130.1 Expiry Date:
Storage: Room temperature, Protected from light and Sealed


Test Items Specifieation Results
Appearance Fluorescent white crystal Complies
Assay ≥99.5% 99.81%
Loss on Drying ≤0.3% 0.22%
Burning residue ≤0.01% <0.01
Heavy Metals(Pb), μg/g ≤10 <2.0
Fe, μg/g ≤5 0.566
Cu, μg/g ≤1 0.291
As, μg/g ≤4 <2.0
SO4, μg/g ≤50 <20
Cl, μg/g ≤10 <5
Mn, μg/g ≤1 <0.1
Melting point,℃ 165~168 166.7
Chroma(5%),Hazen <5 <5.0
Transparency of aqueous solution (5%) No turbidity No turbidity
DMSO soluble (20%) No turbidity No turbidity
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