7-Methylbenzo[d]oxazole CAS 10531-82-5
| CAS No. | 10531-82-5 |
| Molecular Formula | C8H7NO |
| Molecular Weight | 133.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7NO, 7-Methylbenzo[d]oxazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 133.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
7-Methylbenzo[d]oxazole (CAS 10531-82-5), molecular formula C8H7NO and molecular weight 133.15 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C8H7NO |
| Molecular Weight | 133.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Methylbenzo Standards
- 5-Methylbenzo[d]isoxazole (CAS 10531-77-8)
- 6-Methylbenzo[d]isoxazole (CAS 10531-79-0)
- 3-Methylbenzo[c]isoxazole (CAS 4127-53-1)
- 4-Methylbenzo[d][1,3]dioxole (CAS 20487-10-9)
- 3-Methylbenzo[e][1,2,4]triazine (CAS 6299-94-1)
- (S)-3-Methylbenzo[c][1,2]oxaborol-1(3H)-ol (CAS 1388265-61-9)
- 3-Methylbenzo[c][1,2]oxaborol-1(3H)-ol (CAS 92203-40-2)
- N-Methylbenzo[d]isoxazol-3-amine (CAS 1228574-46-6)
Recommended Standards
- 6-Methylbenzoxazole (CAS 10531-80-3)
- (2R,3R,4S)-2-(Hydroxymethyl)pyrrolidine-3,4-diol (CAS 105990-41-8)
- 2-(Aminomethyl)nicotinonitrile (CAS 1060802-55-2)
- 2-(Aminomethyl)isonicotinonitrile (CAS 1060809-90-6)
- Methyl 3-(N-methyl4-bromobenzenesulfonamido)thiophene-2-carboxylate (CAS 1707586-36-4)
- 2-mercapto-3-(2-methoxyphenyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 497078-59-8)
- 5-Phenylthiophen-2-amine (CAS 14770-85-5)
- 4-Iodo-6-methyl-7H-pyrrolo[2,3-b]pyridine (CAS 1167055-95-9)
- 9-Phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole (CAS 618442-57-2)
- (2R)-2-(furan-2-yl)pyrrolidine (CAS 1039033-91-4)
- 2-Amino-4-(2,4-dichlorophenyl)-5-methylthiophene-3-carboxamide (CAS 832740-33-7)
- (2E)-3-(2,5-Dimethoxyphenyl)acrylic acid (CAS 38489-74-6)
- Ethyl 2-(4-amino-5-(hydroxymethyl)-2-oxopyrimidin-1(2H)-yl)acetate (CAS 944249-74-5)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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