2-(Benzo[c]isoxazol-3-yl)acetic acid CAS 27667-30-7
| CAS No. | 27667-30-7 |
| Molecular Formula | C9H7NO3 |
| Molecular Weight | 177.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(Benzo[c]isoxazol-3-yl)acetic acid 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.
CATO supplies 2-(Benzo[c]isoxazol-3-yl)acetic acid (CAS 27667-30-7), a certified reference material (molecular formula C9H7NO3, MW 177.16 g/mol) for analytical method development and quality control.
The molecular framework of 2-(Benzo[c]isoxazol-3-yl)acetic acid (C9H7NO3) 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 | C9H7NO3 |
| Molecular Weight | 177.16 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 1 |
Related Benzo Standards
- Methyl Benzo[d]isoxazole-3-carboxylate (CAS 1082682-56-1)
- 1H-Benzo[d]imidazol-2-yl carbamate (CAS 138206-43-6)
- Benzo[f][1,4]oxazepine-3,5-dione (CAS 14151-88-3)
- Methyl benzo[c]isoxazole-5-carboxylate (CAS 1820648-79-0)
- 2-(Benzo[d]isoxazol-5-yl)acetic acid (CAS 933738-38-6)
- Benzo[d]isoxazol-3-yl acetate (CAS 540750-49-0)
- Benzo[d]oxazole-2-carbohydrazide (CAS 27507-90-0)
- Methyl benzo[d]oxazole-5-carboxylate (CAS 924869-17-0)
Recommended Standards
- 2-(azidomethyl)benzoic acid (CAS 289712-57-8)
- 2-(5H-Pyrrolo[2,3-b]pyrazin-7-yl)acetic acid (CAS 20322-09-2)
- 2-(Cyanomethoxy)benzoic acid (CAS 59393-79-2)
- 2-(4-cyanophenyl)-2-hydroxyacetic acid (CAS 631897-16-0)
- 9H-Fluoren-9-ylmethyl 4-formylbenzylcarbamate (CAS 475160-90-8)
- Tert-butyl (R)-3-(4-fluorophenyl)piperazine-1-carboxylate (CAS 1228559-51-0)
- 1-(Cyclobutylmethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1465204-73-2)
- 3-(thiophen-3-ylmethyl)azetidine hydrochloride (CAS 2031258-77-0)
- 4-((4-Hydroxycyclohexyl)amino)-3-methylbenzonitrile (CAS 1178262-47-9)
- (E)-icos-5-ene (CAS 74685-30-6)
- Fluvoxamine EP Impurity G (CAS 192876-02-1)
- N-(3-Cyanobenzo[4,5]imidazo[1,2-a]pyrimidin-2-yl)-4-fluorobenzamide (CAS 116477-94-2)
- 5-(Piperidin-4-yl)-2,3-dihydro-1H-pyrazol-3-one (CAS 957365-77-4)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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