Product Details
| Product Name: Protocatechuic acid | CAS No.: 99-50-3 |
| EC-No.: 202-760-0 | Min. Order: 10kg |
| Purity: 99% | Supply Ability: 100000kg |
| Release date: 2025/05/26 | |
| Appearance : White powder | Grade: Tech |
| package : bags | keywords : Protocatechuic acid supplier in China |
| Shipping : sea , air , express | product name : Protocatechuic acid manufacture |
| other name : Protocatechuic acid factory | CAS : 99-50-3 |
Protocatechuic acid CAS 99-50-3 supplier in china
| Product Name: | Protocatechuic acid |
| Synonyms: | Protocatechuic aci;Protocatechuic acid, 4-Carboxybenzene-1,2-diol, 4-Carboxycatechol;3,4- twohydroxybenzoic acid/protocatechuicacid;3,4-Dihydroxybenzoic acid >=97.0% (T);Carbohydroquinonic acid;Hypogallic acid;3,4-Dihydroxybenzoic acid Vetec(TM) reagent grade, 97%;3,4-Dihydroxybenzoic acid, >=99% |
| CAS: | 99-50-3 |
| MF: | C7H6O4 |
| MW: | 154.12 |
| EINECS: | 202-760-0 |
| Melting point | 197-200 °C (dec.) (lit.) |
| Boiling point | 237.46°C (rough estimate) |
| density | 1.54 |
| refractive index | 1.6400 (estimate) |
| FEMA | 4430 | 3,4-DIHYDROXYBENZOIC ACID |
| storage temp. | Store below +30°C. |
| solubility | 20g/l |
| pka | 4.48(at 25℃) |
| form | Fine Crystalline Powder |
| color | Beige to brown |
| PH | 3.78(1 mM solution);3.25(10 mM solution);2.74(100 mM solution) |
| Water Solubility | Soluble in hot alcohol and ether. Slightly soluble in water. |
| Sensitive | Air Sensitive |
| Merck | 14,7894 |
| BRN | 1448841 |
Specification
| ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White, crystalline powder or colorless crystals | Passes |
| Identification | Accord With BP2007 | Passes |
| Assay | 99.5%~101.0% | 99.97% |
| Melting point | 75°C~78°C | 77°C |
| Optical rotation | -0.05°~+0.05° | 0.00° |
| Heavy metals | ≤ 0.001% | <0.001% |
| Related substances | ||
| Impurity B | ≤ 0.3% | Passes |
| Any other impurity | ≤ 0.3% | Passes |
| Total of all impurities apart from impurity B | ≤ 0.7% | Passes |
| Impurity F | ≤ 0.1% | Not detected |
| Sulphated ash | ≤ 0.1% | 0.02% |
| Appearance of solution | Accord With BP2010 | Passes |
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China- Since: 2021-12-10
- Address: Qiaoxi District ,Shijiazhuang city, Hebei,Chicna
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