1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one) CAS 790-82-9
| CAS No. | 790-82-9 |
| Molecular Formula | C17H16O2 |
| Molecular Weight | 252.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one).
CATO supplies 1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one) (CAS 790-82-9), a certified reference material (molecular formula C17H16O2, MW 252.31 g/mol) for analytical method development and quality control.
1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one) (C17H16O2) 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 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.
CATO manufactures 1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one) 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 | C17H16O2 |
| Molecular Weight | 252.31 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.) | 1957 |
Related Methylenebis Standards
- 4,4'-Methylenebis(2,5-dimethylaniline) (CAS 5339-30-0)
- 4,4'-Methylenebis(2-ethylaniline) (CAS 19900-65-3)
- Methylenebis(dichlorophosphonic acid) (CAS 1499-29-2)
- 5,5'-Methylenebis(2-hydroxybenzaldehyde) (CAS 3046-82-0)
- 4,4’-Methylenebis(2,6-dimethylphenol) (CAS 5384-21-4)
- 4,4＇-Methylenebis(2-methylcyclohexylamine) (mixture of isomers) (CAS 6864-37-5)
- 2,2′-Methylenebis[(4<I>S</I>)-4-tert-butyl-2-oxazoline] (CAS 132098-54-5)
- 4,4'-Methylenebis[N,N-dimethylcyclohexanamine] (CAS 13474-64-1)
Recommended Standards
- 1-(4-Methoxyphenyl)-3-(p-tolyl)prop-2-en-1-one (CAS 6552-71-2)
- 1,3-Bis(4-methylphenyl)propane-1,3-dione (CAS 3594-36-3)
- 1-(4-Ethylphenyl)-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 727374-25-6)
- 1,3-Di-m-tolylpropane-1,3-dione (CAS 59826-44-7)
- Methyl 4,5,6,7-tetrahydrothieno[3,2-c]pyridine-4-carboxylate (CAS 129823-26-3)
- 5,5-Dimethyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-3-amine (CAS 2170752-31-3)
- 1-(Chloromethyl)-1-isopentylcyclobutane (CAS 1486273-40-8)
- Di(Perfluorophenyl) 4,7,10,13-Tetraoxahexadecanedioate (CAS 1314378-12-5)
- N,4-dimethyl-5-(1-propylpyrrolidin-2-yl)pyridin-2-amine (CAS 1352539-10-6)
- (2-(6-Amino-2-methylpyridin-3-yl)pyrrolidin-1-yl)(phenyl)methanone (CAS 1352522-09-8)
- 1-Methyl-4-(4-methyl-3-nitrobenzyl)piperazine (CAS 1276383-00-6)
- 4-Cyano-3-thiomorpholinomethyl benzophenone (CAS 898762-88-4)
- Mianserin Impurity 97 (CAS 85141-92-0)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
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