Methyl 4-amino-2-methoxybenzoate hydrochloride CAS 33556-04-6
| CAS No. | 33556-04-6 |
| Molecular Formula | C9H11NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 217.65 g/mol gives Methyl 4-amino-2-methoxybenzoate hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 4-amino-2-methoxybenzoate hydrochloride (CAS 33556-04-6), molecular formula C9H11NO3HCl and molecular weight 217.65 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Methyl 4-amino-2-methoxybenzoate hydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 217.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Methyl 4-amino-2-methoxybenzoate hydrochloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H11NO3 HCl |
| Molecular Weight | 217.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Methyl Standards
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Recommended Standards
- 1-(3-Methylpyridin-4-yl)ethanol (CAS 22382-97-4)
- Methyl 5-phenyl-3-(2-phenylacetamido)thiophene-2-carboxylate (CAS 477326-40-2)
- 4-(Difluoromethyl)-6-methoxy-2-methylpyridine-3-sulfonyl chloride (CAS 1805610-84-7)
- 2-(2-Methylpropoxy)-4-(trifluoromethyl)phenol (CAS 1881321-51-2)
- N,N'-(4,8-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-1,5-diyl)bis(3-chlorobenzamide) (CAS 83721-54-4)
- (1R,2S)-2-(1-methyl-1H-pyrazol-5-yl)cyclohexan-1-ol (CAS 1450599-20-8)
- DBCO-NHS ester (CAS 1353016-71-3)
- 2-[3-(aminomethyl)piperidin-1-yl]acetonitrile dihydrochloride (CAS 1354951-26-0)
- Morinidazole Impurity 29 (CAS CATO-C4X-219629)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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