2-(tert-Butoxy)-1,2-diphenylethanone CAS 51891-91-9
| CAS No. | 51891-91-9 |
| Molecular Formula | C18H20O2 |
| Molecular Weight | 268.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 268.35 g/mol gives 2-(tert-Butoxy)-1,2-diphenylethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(tert-Butoxy)-1,2-diphenylethanone (CAS 51891-91-9), molecular formula C18H20O2 and molecular weight 268.35 g/mol, is a CATO reference standard with documented purity and traceability.
2-(tert-Butoxy)-1,2-diphenylethanone (C18H20O2) contains a steroid core, 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.
CATO manufactures 2-(tert-Butoxy)-1,2-diphenylethanone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H20O2 |
| Molecular Weight | 268.35 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
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- 1-{1-[(tert-butoxy)carbonyl]azetidin-3-yl}-1H-1,2,3-triazole-5-carboxylic acid (CAS 2092090-14-5)
- 2-(3-{[(tert-butoxy)carbonyl]amino}-2-oxo-1,2-dihydropyridin-1-yl)acetic acid (CAS 882847-09-8)
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Recommended Standards
- 2-(Dec-9-en-1-yl)pent-2-enedioic acid (CAS 97207-52-8)
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- 2,3-Dimethoxy-5-nitro-benzaldehyde (CAS 6324-49-8)
- Methyl 2-amino-3-(4-chloro-1h-pyrazol-1-yl)-2-cyclopropylpropanoate (CAS 1344369-21-6)
- 5-Amino-4-methyl-2-nitrophenol (CAS 2055119-24-7)
- 3-[(2-oxopyrrolidin-1-yl)methyl]benzonitrile (CAS 1016840-72-4)
- Ethyl 2-(4-(hydroxymethyl)-3-methoxyphenyl)acetate (CAS 2386362-66-7)
- 4-Chloro-2-oxoindoline-3-carbaldehyde (CAS 23872-23-3)
- n-Isobutyl-2-(6-methylbenzofuran-3-yl)acetamide (CAS 870755-21-8)
- (S)-1-(5-Methyl-4H-1,2,4-triazol-3-yl)ethanamine dihydrochloride (CAS 1262751-42-7)
- (4S,5R)-Methyl 4,5-dimethyl-4,5-dihydrooxazole-4-carboxylate (CAS 120133-99-5)
- 4-Bromo-2,N-dimethylaniline (CAS 59557-89-0)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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