3-tert-Butyl-4-(2-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine CAS 478048-72-5
| CAS No. | 478048-72-5 |
| Molecular Formula | C20H23NO2 |
| Molecular Weight | 309.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-tert-Butyl-4-(2-methylbenzoyl)-3,4-dihydro-2H-1,4-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.
3-tert-Butyl-4-(2-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine (CAS 478048-72-5) is a high-purity analytical reference standard with the molecular formula C20H23NO2 and a molecular weight of 309.40 g/mol.
3-tert-Butyl-4-(2-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine (C20H23NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H23NO2 |
| Molecular Weight | 309.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-Methoxy-4-piperidinomethyl benzophenone (CAS 898771-01-2)
- 4-((4-Benzylpiperidin-1-yl)methyl)benzoic acid (CAS 330859-35-3)
- 3-Methoxy-2-piperidinomethyl benzophenone (CAS 898751-77-4)
- 4-((4-Butylphenyl)ethynyl)-2-fluoro-1-isothiocyanatobenzene (CAS 552321-24-1)
- 3-(1H-naphtho[2,3-d]imidazol-2-yl)propan-1-amine dihydrochloride (CAS 435345-31-6)
- 1-[(3-chlorophenyl)methyl]cyclohexane-1-carboxylic acid (CAS 1226226-33-0)
- N-((2S,3S,E)-1,3-Dihydroxyoctadec-4-en-2-yl)acetamide (CAS 143615-69-4)
- 4-[6-(3-Trifluoromethylphenyl)-pyridin-3-yl]-pyrimidin-2-ylamine (CAS 2088942-47-4)
- 3-methyl-4-(2-oxoimidazolidin-1-yl)benzoic acid (CAS 1038283-29-2)
- 7-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5H-pyrano[2,3-d]pyrimidine-5,5,6-tricarbonitrile (CAS 41278-83-5)
- (6-Methyl-1H-indazol-5-yl)boronic acid (CAS 1310405-35-6)
- GW-328267, >98% (HPLC) (CAS 210237-78-8)
- 4-(4-Bromophenyl)-3-(3,5-dichlorophenyl)-1-(pyridin-3-yl)butan-2-ol (CAS 866043-51-8)
- Palmitoyl Hexapeptide-12 TFA salt (CAS 171263-26-6(Free Base))
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