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Protocatechuic acid CAS 99-50-3
Prodcut name: Protocatechuic acid,3,4-Dihydroxybenzoic acid
Specification: 98% Protocatechuic acid
Appearance: White powder
Mesh size: 80 Mesh
Test Method: HPLC
Prodcut name: Protocatechuic acid,3,4-Dihydroxybenzoic acid
Specification: 98% Protocatechuic acid
Appearance: White powder
Mesh size: 80 Mesh
Test Method: HPLC
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Specification: 98% Protocatechuic acid
Appearance: White powder
Mesh size: 80 Mesh
Test Method: HPLC
| Analysis | Specification | Results |
| Assay | ≥98.0% | 98.43% |
| Physical & Chemical Control | ||
| Identification | Positive | Complies |
| Appearance | White Powder | Complies |
| Odor | Characteristic | Complies |
| Mesh Size | 80 mesh | Complies |
| Loss On Drying | ≤5.0% | 2.27% |
| Methanol | ≤5.0% | 0.024% |
| Ethanol | ≤5.0% | 0.150% |
| Residue on Ignition | ≤3.0% | 1.05% |
| Heavy Metal Testing | ||
| Heavy Metals | <20ppm | Complies |
| As | <2ppm | Complies |
| LEAD(Pb) | < 0.5PPM | 0.22 ppm |
| MERCURY(Hg) | Not dectect | Complies |
| CADMIUM | < 1 PPM | 0.25 ppm |
| COPPER | < 1 PPM | 0.32 ppm |
| ARSENIC | < 1 PPM | 0.11 ppm |
| Microbiological | ||
| Total Plate Count | <1000/gMax | Complies |
| Staphylococcus Aurenus | Not Detected | Negative |
| Pseudomonas | Not Detected | Negative |
| Yeast & Mold | <100/gMax | Complies |
| Salmonella | Negative | Negative |
| E. Coli | Negative | Negative |
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