4-(Butan-2-ylidene)-2-phenyloxazol-5(4H)-one CAS 61548-98-9
| CAS No. | 61548-98-9 |
| Molecular Formula | C13H13NO2 |
| Molecular Weight | 215.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(Butan-2-ylidene)-2-phenyloxazol-5(4H)-one 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 4-(Butan-2-ylidene)-2-phenyloxazol-5(4H)-one (CAS 61548-98-9), a certified reference material (molecular formula C13H13NO2, MW 215.25 g/mol) for analytical method development and quality control.
4-(Butan-2-ylidene)-2-phenyloxazol-5(4H)-one (C13H13NO2) contains a nitrogen-containing heterocyclic scaffold, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C13H13NO2 |
| Molecular Weight | 215.25 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
Related Butan Standards
- (E)-4-(Butan-2-ylidene)-2-phenyloxazol-5(4H)-one (CAS 67867-25-8)
- (Z)-4-(Butan-2-ylidene)-2-phenyloxazol-5(4H)-one (CAS 67867-24-7)
- (Butan-2-yl)[(2-chloro-6-fluorophenyl)methyl]amine (CAS 869945-18-6)
- (butan-2-yl)({[1,2,4]triazolo[4,3-a]pyridin-3-yl}methyl)amine (CAS 1042564-81-7)
- butan-2-yl(1-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}ethyl)amine (CAS 1156212-02-0)
- 1-(Butan-2-yl)-1h-pyrazolo[3,4-b]pyridine-5-carboxylic acid (CAS 926230-62-8)
- (Butan-2-yl)[(2e)-3-(2-methoxyphenyl)prop-2-en-1-yl]amine (CAS 854947-27-6)
- (Butan-2-yl)[(4-tert-Butylphenyl)methyl]amine (CAS 1036478-59-7)
Recommended Standards
- 4-(Benzyloxy)-2-methylpyridine 1-oxide (CAS 63071-08-9)
- 4-(Dimethylamino)-1-naphthoic acid (CAS 78062-03-0)
- 4-(Benzyloxy)-2-methoxypyridine (CAS 66080-44-2)
- 4-(Dimethylamino)-6-phenylpyridazin-3(2H)-one (CAS 89868-07-5)
- cis-Decamethrinic acid methyl ester (CAS 113830-50-5)
- 3-Cyclopropoxy-4-methoxy-N-methylaniline (CAS 1243317-71-6)
- (2-Chlorophenyl)(2,3-dihydro-1,4-benzodioxin-6-yl)methanamine (CAS 1019443-74-3)
- 4,4′-di-tert-butylbiphenyl (CAS 1625-91-8)
- 5-Fluoro-2-methylquinoline (CAS 346604-38-4)
- (2,6-Bis((dimethylamino)methyl)phenyl)(bromo)platinum (CAS 67507-09-9)
- 4-Chloro-2,5-difluorobenzamide (CAS 508203-26-7)
- 4-(2-Isopropoxyethoxy)piperidine hydrochloride (CAS 1221725-64-9)
- 3-Methylthiophene-2-sulfonyl chloride (CAS 61714-76-9)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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