Methyl 4-Amino-3-hydroxybenzoate CAS 63435-16-5
| CAS No. | 63435-16-5 |
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 4-Amino-3-hydroxybenzoate (C8H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Methyl 4-Amino-3-hydroxybenzoate (CAS 63435-16-5), molecular formula C8H9NO3 and molecular weight 167.16 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 4-Amino-3-hydroxybenzoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Methyl 2-(methylamino)-5-nitronicotinate (CAS 1228182-64-6)
- 2-Bromo-6-chloro-1H-indole (CAS 1388075-92-0)
- (3R,4S)-4-Methoxytetrahydrofuran-3-amine (CAS 1909294-55-8)
- (-)-Indolactam V (CAS 90365-57-4)
- ethyl 2,2-dibromo-1-phenylcyclopropane-1-carboxylate (CAS 65655-78-9)
- 4-Chloro-5-methyl-2-(4-methylpyrrolidin-2-yl)phenol (CAS 603069-14-3)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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