ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว Protocatechuic acid with 99% purity CAS 99-50-3
| Protocatechuic acid Basic information | |
| Product Name: | Protocatechuic acid |
| CAS: | 99-50-3 |
| MF: | C7H6O4 |
| MW: | 154.12 |
| EINECS: | 202-760-0 |
| Mol File: | 99-50-3.mol |
| Protocatechuic acid Chemical Properties | |
| Melting point | 197-200 °C (dec.) (lit.) |
| Boiling point | 237.46°C (rough estimate) |
| density | 1.54 |
| FEMA | 4430 | 3,4-DIHYDROXYBENZOIC ACID |
| refractive index | 1.6400 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | 20g/l |
| pka | 4.48(at 25ºC) |
| form | Fine Crystalline Powder |
| color | Beige to brown |
| Water Solubility | Soluble in hot alcohol and ether. Slightly soluble in water. |
| Sensitive | Air Sensitive |
| Merck | 147,894 |
| BRN | 1448841 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong bases. |
| InChIKey | YQUVCSBJEUQKSH-UHFFFAOYSA-N |
| CAS DataBase Reference | 99-50-3(CAS DataBase Reference) |
| EPA Substance Registry System | Protocatechuic acid (99-50-3) |
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ITEM
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STANDARD
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TEST RESULT
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Specification/Assay
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≥98.0%
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99.15%
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Physical & Chemical
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Appearance
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White powder
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Complies
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Odor & Taste
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Characteristic
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Complies
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Particle Size
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≥95% pass 80 mesh
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Complies
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Loss on Drying
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≤5.0%
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2.55%
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Ash
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≤5.0%
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3.54%
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Heavy Metal
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Total Heavy Metal
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≤10.0ppm
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Complies
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Lead
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≤2.0ppm
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Complies
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Arsenic
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≤1.0ppm
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Complies
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Mercury
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≤0.1ppm
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Complies
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Cadmium
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≤1.0ppm
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Complies
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ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
