| ITEM | SPECIFICATIONS |
| APPEARANCE | WHITE CRYSTAL POWDERS |
| ASSAY(AS C4H6O5)% | 99.0-100.5 |
| SPECIFIC ROTATION[α]25℃ º | -0.10 - +0.10 |
| ARSENIC [ as As2O3] mg/kg | ≤4 |
| HEAVY METALS[Pb] | ≤10 |
| FUMARIC ACID% | ≤1.0 |
| MALEIC ACID% | ≤0.05 |
| WATER-INSOLUBLE MATTER% | ≤0.1 |
| RESIDUE ON IGNITION | ≤0.1 |
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