Bis(2,4-dimethylphenyl)methanone CAS 3478-88-4
| CAS No. | 3478-88-4 |
| Molecular Formula | C17H18O |
| Molecular Weight | 238.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Bis(2,4-dimethylphenyl)methanone (CAS 3478-88-4) is a high-purity analytical reference standard with the molecular formula C17H18O and a molecular weight of 238.32 g/mol.
Structurally, Bis(2,4-dimethylphenyl)methanone (C17H18O) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 238.32 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C17H18O |
| Molecular Weight | 238.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | 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.) | 1957 |
Related Bis Standards
- Bis(2,6-dimethylphenyl)methanone (CAS 14252-21-2)
- 1-(3,4-Dimethylphenyl)-3-phenylpropan-1-one (CAS 158511-72-9)
- 1-(2,6-Dimethylphenyl)-3-phenylpropan-1-one (CAS 898764-30-2)
- 1-(3,5-Dimethylphenyl)-3-phenylpropan-1-one (CAS 898764-33-5)
- 3-(2,3-Dimethylphenyl)-1-phenylpropan-1-one (CAS 898768-94-0)
- 3-(2,4-Dimethylphenyl)-1-phenylpropan-1-one (CAS 898793-51-6)
- 3-(2,5-Dimethylphenyl)propiophenone (CAS 898794-72-4)
- 3-(2,6-Dimethylphenyl)-1-phenylpropan-1-one (CAS 898754-24-0)
Recommended Standards
- 9-Butyl-9H-fluoren-9-ol (CAS 5806-10-0)
- Bis(3,4-dimethylphenyl)methanone (CAS 4659-48-7)
- 7-(4-Methoxyphenoxy)heptan-1-ol (CAS 910469-97-5)
- Bis(3,5-dimethylphenyl)methanone (CAS 22679-40-9)
- 4-(1,4-Diazepan-1-yl)-2-methylpyrazolo[1,5-a]pyrazine (CAS 1707394-43-1)
- Tert-butyl 4-(((1-(4-fluorobenzyl)-1H-benzo[d]imidazol-2-yl)oxy)methyl)piperidine-1-carboxylate (CAS 1353978-58-1)
- 5-(4-Aminophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 103755-57-3)
- 2-(3,4-Dimethoxyphenyl)pyrazolidin-3-one (CAS 144146-94-1)
- 2-Cyclopropoxy-N,N-dimethyl-5-sulfamoylbenzamide (CAS 1243346-57-7)
- 4,5,6,7,8,9,10,11,12,13-Decahydrocyclododeca-[b]thiophene-2-carbonyl chloride (CAS 1160249-29-5)
- 4-(4-Chlorophenyl)-3-methyl-1-phenylindeno[1,2-b]pyrazolo[4,3-e]pyridin-5(1H)-one (CAS 1009630-24-3)
- ALK Inhibitor 1 (CAS 761436-81-1)
- Diethyl 4,4'-(ethane-1,1-diyl)bis(3,5-dimethyl-1H-pyrrole-2-carboxylate) (CAS 5432-35-9)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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