1,1'-([1,1':4',1''-Terphenyl]-4,4''-diyl)bis(ethan-1-one) CAS 4191-07-5
| CAS No. | 4191-07-5 |
| Molecular Formula | C22H18O2 |
| Molecular Weight | 314.38 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.
1,1'-([1,1':4',1''-Terphenyl]-4,4''-diyl)bis(ethan-1-one) (CAS 4191-07-5), molecular formula C22H18O2 and molecular weight 314.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,1'-([1,1':4',1''-Terphenyl]-4,4''-diyl)bis(ethan-1-one) (C22H18O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 314.38 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 1,1'-([1,1':4',1''-Terphenyl]-4,4''-diyl)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 | C22H18O2 |
| Molecular Weight | 314.38 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Terphenyl Standards
- [1,1':4',1''-Terphenyl]-4,4''-bis(carboximidamide) (CAS 851340-73-3)
- [1,1':3',1''-Terphenyl]-4,4'',5'-tricarbaldehyde (CAS 1977585-07-1)
- 4''-Butyl-[1,1':4',1''-terphenyl]-4-carbonitrile (CAS 66044-94-8)
- p-terphenyl-4,4′′-dithiol (CAS 174706-21-9)
- [1,1':4',1''-Terphenyl]-3,3''-dicarboxylicacid (CAS 1238854-14-2)
- [1,1':3',1''-Terphenyl]-4,4''-dicarboxylic acid (CAS 13215-72-0)
- [1,1’:4’,1’’-Terphenyl]-4,4’’-dicarboxylic Acid (CAS 13653-84-4)
- [1,1':2',1''-Terphenyl]-4,4''-dicarboxylicacid (CAS 77951-96-3)
Recommended Standards
- 1-(Benzyloxy)-2-(4-methylphenyl)-1H-1,3-benzodiazole (CAS 338791-35-8)
- 1,1'-(1,2-Diphenylethane-1,1-diyl)bis(1H-pyrazole) (CAS 89407-21-6)
- 1-(2,7-Dimethylimidazo[1,2-a]pyridin-3-yl)-2-[(4-fluorophenyl)sulfanyl]-1-ethanone (CAS 478042-05-6)
- 1,2,4-Triphenyl-1,4-butanedione (CAS 4441-01-4)
- 5-Cyclopropoxy-6-isopropoxypyridine-2-sulfonamide (CAS 1243466-88-7)
- 2-(1-Methylpiperidin-4-yl)tetrahydrofuran-3-carboxylic acid hydrochloride (CAS 1955499-45-2)
- N-(2-CHloroethyl)-3-hydroxybenzamide (CAS 469886-21-3)
- 2-Chloro-3-hexylthiophene (CAS 817181-75-2)
- dimethyl (cyanomethyl)phosphonate (CAS 21658-92-4)
- [5-Methyl-6-(2-methyl-4-pyridyl)-3-pyridyl]methanamine hydrochloride (CAS 1354356-19-6)
- Ethyl (R)-3-amino-2-(((benzyloxy)carbonyl)amino)propanoate hydrochloride (CAS 264235-79-2)
- 7-(Furan-2-yl)-2-[(3,4,4-trifluorobut-3-en-1-yl)sulfanyl]-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 338777-08-5)
- 4-Cyclopropoxy-3-ethyl-2-nitropyridine (CAS 1243402-07-4)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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