5-(2-Amino-ethyl)-2-hydroxy-benzoic acid CAS 4900-26-9
| CAS No. | 4900-26-9 |
| Molecular Formula | C9H11NO3 |
| Molecular Weight | 181.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(2-Amino-ethyl)-2-hydroxy-benzoic acid 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.
5-(2-Amino-ethyl)-2-hydroxy-benzoic acid (CAS 4900-26-9), molecular formula C9H11NO3 and molecular weight 181.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(2-Amino-ethyl)-2-hydroxy-benzoic acid (C9H11NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.) | 1958 |
| Nitrogen Atoms | 1 |
Related Amino Standards
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- N-(5-Acetyl-4-methyl-1,3-thiazol-2-yl)-N-[3-(trifluoromethyl)phenyl]acetamide (CAS 2060498-12-4)
- 2-(2,6-Diamino-3-(difluoromethyl)pyridin-4-yl)acetonitrile (CAS 1805949-57-8)
- 2-(4-fluorobenzyl)-4-methyl-1,3-thiazole-5-carboxylic acid (CAS 1087792-10-6)
- 2-((1H-Indol-3-yl)thio)acetic acid (CAS 54466-88-5)
- Methyl 4-bromo-3-cyano-5-formylbenzoate (CAS 1807078-53-0)
- 4-[(4-hydroxypiperidin-1-yl)methyl]benzoic acid (CAS 1040346-47-1)
- 1-(3,4-Dichloro-5-(trifluoromethyl)phenyl)ethan-1-one (CAS 1261645-17-3)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com