Benzoxazine CAS 254-18-2
| CAS No. | 254-18-2 |
| Molecular Formula | C8H7NO |
| Molecular Weight | 133.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzoxazine (CAS 254-18-2), molecular formula C8H7NO and molecular weight 133.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H7NO, Benzoxazine 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. 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.
As a certified reference material (CRM), Benzoxazine 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.
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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Benzoxazine Standards
- 2H-1,4-Benzoxazine-7-carbonitrile, 3,4-dihydro- (CAS 566158-19-8)
- 2H-1,4-Benzoxazine-2,3(4H)-dione (CAS 3597-63-5)
- 2H-1,4-benzoxazine, 3,4-dihydro-3,6-dimethyl- (CAS 24033-49-6)
- 2H-1,4-Benzoxazine-3-methanol, 7-fluoro-3,4-dihydro-, (3S)- (CAS 2883019-47-2)
- 1-ethyl-3,1-benzoxazine-2,4-dione (CAS 50332-68-8)
- 2H-1,4-Benzoxazine-3-acetonitrile, 7-fluoro-3,4-dihydro-, (3S)- (CAS 2883019-53-0)
- 2h-3,1-benzoxazine-8-carboxylic acid, 1,4-dihydro-2,4-dioxo-, methyl ester 3-isatoic anhydride carboxylic acid methyl ester 886362-85-2 Methyl 2,4-dioxo-2,4-dihydro-1H-benzo[d][1,3]oxazine-8-carboxylate methyl 1,4-dihydro-2,4-dioxo-2h-3,1-benzoxazine-8-carboxylate methyl 2,4-dioxo-1,4-dihydro-2h-3,1-benzoxazine-8-carboxylate ref dupl: 3-isatoic anhydride carboxylic acid methyl ester (CAS 886362-85-2)
- 2H-1,4-benzoxazine, 8-bromo-3,4-dihydro-2,2-dimethyl- (CAS 853683-76-8)
Recommended Standards
- 8-Methylimidazo[1,2-a]pyrazine (CAS 91476-79-8)
- Benzyl Isocyanate (CAS 3173-56-6)
- 8-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 4997-81-3)
- Butyl hydroxycarbamate (CAS 590-03-4)
- (2-(Methylthio)pyridin-3-yl)(1-oxa-4-thia-8-azaspiro[4.5]decan-8-yl)methanone (CAS 1396558-71-6)
- 4-(2,4-DIFLUOROPHENYL)BUT-3-ENOIC ACID (CAS 1260026-07-0)
- 2-((3-Cyano-4-(4-methoxyphenyl)-6-phenylpyridin-2-yl)thio)-N-(4-nitrophenyl)acetamide (CAS 332018-70-9)
- 3-(4-Fluorophenyl)-1,2-thiazole-5-carboxylic acid (CAS 1486096-34-7)
- 3-(Difluoromethyl)-4-(trifluoromethyl)pyridine-2,6-diamine (CAS 1805234-98-3)
- tert-butyl 2-(2,2,2-trifluoroacetyl)pyrrolidine-1-carboxylate (CAS 1283719-71-0)
- n-(2-(Pyridin-2-yl)ethyl)benzamide (CAS 4976-05-0)
- Ethyl 4-Acetoxybenzofuran-6-carboxylate (CAS 494868-92-7)
- tert-Butyl 2-(aminomethyl)pyrrolidine-1-carboxylate hydrochloride (CAS 1188263-74-2)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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