3-Methylbenzo[d]isoxazole-6-carbaldehyde CAS 1508191-80-7
| CAS No. | 1508191-80-7 |
| Molecular Formula | C9H7NO2 |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Methylbenzo[d]isoxazole-6-carbaldehyde (CAS 1508191-80-7), a certified reference material (molecular formula C9H7NO2, MW 161.16 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H7NO2, 3-Methylbenzo[d]isoxazole-6-carbaldehyde contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 161.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C9H7NO2 |
| Molecular Weight | 161.16 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Related Methylbenzo Standards
- 8-Methylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 1008742-16-2)
- 7-Methylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 176260-30-3)
- 3-Methylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 22305-44-8)
- 3-Methylbenzo[d]isoxazole-5-carbaldehyde (CAS 648448-98-0)
- 6-Methylbenzo[d][1,2,3]triazin-4(1H)-one (CAS 91532-23-9)
- 6-Methylbenzo[d]oxazole-2-carbaldehyde (CAS 944907-42-0)
- 5-Ethyl-3-methylbenzo[d]isoxazole (CAS 131222-23-6)
- 3-Ethyl-6-methylbenzo[c]isoxazole (CAS 64723-52-0)
Recommended Standards
- 1-(5H-Pyrrolo[2,3-b]pyrazin-6-yl)ethanone (CAS 1507995-70-1)
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- 5-(Pyridin-4-yl)isoxazol-3-amine (CAS 1507964-11-5)
- 6,7-Dihydroquinoline-5,8-dione (CAS 1522380-62-6)
- 1-(1,2-thiazol-5-yl)ethan-1-amine dihydrochloride (CAS 2044901-81-5)
- N-(3-Methylisothiazol-5-yl)-2-phenylthiazole-4-carboxamide (CAS 1206996-94-2)
- (S)-[2,3':1',1'':3'',2'''-Quaternaphthalene]-2',2''-diol (CAS 863659-89-6)
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- Tadalafil Impurity 91 (CAS CATO-C4X-108791)
- (2,5-Difluorophenyl)(4-methylpyridin-2-yl)methanone (CAS 1187163-80-9)
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