3-Hydroxy-5-methoxybenzoic acid CAS 19520-75-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19520-75-3 |
| Molecular Formula | C8H8O4 |
| Molecular Weight | 168.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Hydroxy-5-methoxybenzoic acid (CAS 19520-75-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H8O4. Molecular weight: 168.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H8O4 |
| Molecular Weight | 168.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Hydroxy Standards
- 3-Hydroxy-5,6-dimethylpyridazine-4-carboxylic acid (CAS 101861-29-4)
- 2-Hydroxy-4-(hydroxymethyl)benzoic acid (CAS 106420-93-3)
- 1-(5-Hydroxy-6-methoxypyridazin-4-yl)ethanone (CAS 106584-74-1)
- Methyl 4-Hydroxy-6-methylpyrimidine-2-carboxylate (CAS 1240600-77-4)
- (S)-2-Hydroxy-2-(4-hydroxyphenyl)acetic acid (CAS 13244-75-2)
- Methyl 2-hydroxy-2-(pyrazin-2-yl)acetate (CAS 1479997-67-5)
- Methyl 2-hydroxy-2-(pyrimidin-5-yl)acetate (CAS 1494496-35-3)
- 4-Hydroxy-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-3-carboxylic acid (CAS 1516650-68-2)
Recommended Standards
- (2E,4E,6E)-Octa-2,4,6-trienedioic acid (CAS 195073-49-5)
- 2,2-Dihydroxy-1-(4-hydroxyphenyl)ethanone (CAS 197447-05-5)
- 1-Methyl-1h-imidazole-4,5-dicarboxamide (CAS 19485-37-1)
- N-(4-Chloro-6-methyl-pyrimidin-2-yl)-cyclohexane-1,4-diamine hydrochloride (CAS 1289387-28-5)
- 2-((4,5-Dichloro-1H-imidazol-1-yl)methyl)-3,4-dimethoxypyridine (CAS 1219570-73-6)
- (E)-1,2-Bis(3,4,5-trimethoxyphenyl)ethene (CAS 61240-22-0)
- 4-(2-Fluorophenyl)-2-(4-methoxybenzyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 860784-84-5)
- (2S,5S)-4-Benzyl-2,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester (CAS 1932399-62-6)
- 7-bromo-1H-1,6-naphthyridin-2-one (CAS 1574395-48-4)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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