Ethyl 2-amino-4-hydroxybenzoate CAS 1089316-76-6
| CAS No. | 1089316-76-6 |
| Molecular Formula | C9H11NO3 |
| Molecular Weight | 181.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 181.19 g/mol gives Ethyl 2-amino-4-hydroxybenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 2-amino-4-hydroxybenzoate (CAS 1089316-76-6), a certified reference material (molecular formula C9H11NO3, MW 181.19 g/mol) for analytical method development and quality control.
Structurally, Ethyl 2-amino-4-hydroxybenzoate (C9H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 181.19 g/mol, it falls into the medium-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H11NO3 |
| Molecular Weight | 181.19 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.) | 1989 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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- 2-Amino-1-(4-hydroxy-3-(hydroxymethyl)phenyl)ethan-1-one (CAS 1044764-21-7)
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Recommended Standards
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- [1-(hydroxymethyl)-4-methylene-cyclohexyl]methanol (CAS 1354932-12-9)
- 1,6-Diaminohexane-<I>N</I>,<I>N</I>,<I>N</I>′,<I>N</I>′-tetraacetic acid (CAS 1633-00-7)
- 5,5-Dimethyl-1-(3-methylbut-2-en-1-yl)pyrazolidin-3-one (CAS 131391-06-5)
- 4-(4-Bromophenyl)-2,2-dimethylbutanoic acid (CAS 1267365-75-2)
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