 |
| Gallic acid (GA) is a component of hydrolyzable tannins, also known as gallic acid, chemical name 3,4,5-trihydroxybenzoic acid. The content of gallic acid in Yunnan Pu'er tea is relatively high. | |||||||||
149-91-7
bosschemical
149-91-7
| Gallic acid Basic information | |
| Product Name: | Gallic acid |
| Synonyms: | Gallic acid, 98% 250GR;Gallic acid, 98% 5GR;Gallic acid 0;3,4,5-Trihydroxybenzoic acid, anhydrous 99%;Gallic acid, 5-Carboxybenzene-1,2,3-triol;BETZ 0276;GALLIC ACID;GALLIC ACID-1-HYDRATE |
| CAS: | 149-91-7 |
| MF: | C7H6O5 |
| MW: | 170.12 |
| EINECS: | 205-749-9 |
| Product Categories: | chemical reagent;pharmaceutical intermediate;phytochemical;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract;Fine chemicals;Pharmaceutical Intermediates;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;Food additive,Antioxidant anticorrosive;Inhibitors |
| Mol File: | 149-91-7.mol |
| Gallic acid Structure | |
| Gallic acid Chemical Properties | |
| Melting point | 251 °C (dec.) (lit.) |
| Boiling point | 259.73°C (rough estimate) |
| density | 1.694 |
| refractive index | 1.5690 (estimate) |
| storage temp. | 2-8°C |
| pka | 4.41(at 25℃) |
| form | Powder |
| color | Off-white |
| Water Solubility | 12 g/L cold water |
| Merck | 144,345 |
| BRN | 2,050,274 |
| Items | Specification |
| Assay(HPLC) | ≥98% |
| Appearance | White fine powder |
| Ash | ≤5.0% |
| Moisture | ≤5.0% |
| Heavy metals | ≤10ppm |
| As | ≤2.0ppm |
| Lead | ≤2.0ppm |
