1,4-Phenylenebis(diphenylmethanol) CAS 57155-57-4
| CAS No. | 57155-57-4 |
| Molecular Formula | C32H26O2 |
| Molecular Weight | 442.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,4-Phenylenebis(diphenylmethanol) (CAS 57155-57-4), molecular formula C32H26O2 and molecular weight 442.55 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 1,4-Phenylenebis(diphenylmethanol) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 442.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 1,4-Phenylenebis(diphenylmethanol) 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.
Physical & Chemical Properties
| Molecular Formula | C32H26O2 |
| Molecular Weight | 442.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Phenylenebis Standards
- 1,3-Phenylenebis((4-bromophenyl)methanone) (CAS 136039-69-5)
- 1,4-Phenylenebis((4-bromophenyl)methanone) (CAS 52497-29-7)
- 4,4'-(1,4-Phenylenebis(oxy))diphthalic acid (CAS 18959-88-1)
- 5,5'-(((1,4-Phenylenebis(methylene))bis(azanediyl))bis(methylene))bis(quinolin-8-ol) (CAS 918907-58-1)
- 1,1'-((1,3-Phenylenebis(oxy))bis(4,1-phenylene))bis(1H-pyrrole-2,5-dione) (CAS 115341-26-9)
- 1,1'-((1,4-Phenylenebis(oxy))bis(4,1-phenylene))bis(1H-pyrrole-2,5-dione) (CAS 82577-60-4)
- 1,1'-(1,3-Phenylenebis(propane-2,2-diyl))bis(3-(pyridin-3-yl)urea) (CAS 847934-17-2)
- 1,4-Phenylenebis((4-(tert-butyl)-2,6-dimethylphenyl)methanone) (CAS 911836-46-9)
Recommended Standards
- 1-(Adamantan-1-yl)-3-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea (CAS 548748-67-0)
- 2-((3-Allyl-5-(furan-2-yl)-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 752220-43-2)
- (9H-Fluoren-9-yl)methyl (3-(2-(2-(3-aminopropoxy)ethoxy)ethoxy)propyl)carbamate (CAS 308241-31-8)
- 2-({5-[3-(diethylsulfamoyl)phenyl]-4-(1-methoxypropan-2-yl)-4h-1,2,4-triazol-3-yl}sulfanyl)acetic acid (CAS 745791-53-1)
- Ethyl 3-(4-hydroxythiophen-2-yl)propanoate (CAS 1881293-49-7)
- 1-(4-Fluoro-2-methylphenyl)piperazine (CAS 307952-16-5)
- (E)-3-(4-chloro-2-fluoro-3-methoxyphenyl)acrylic acid (CAS 1353001-74-7)
- 4-Chloro-6-(4-methylpiperazin-1-yl)pyrimidin-5-amine (CAS 84762-68-5)
- (1R,4S)-2-azabicyclo[2.2.1]heptane hydrochloride (CAS 1955474-63-1)
- 3,6-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-69-4)
- 2-Phenylquinoxaline (CAS 5021-43-2)
- Methyl 2-((4-hydroxybutyl)amino)-2-methylpropanoate (CAS 1877646-01-9)
- Methyl 3-hydroxy-4-(1H-imidazol-2-yl)benzoate (CAS 1282516-54-4)
- Semaglutide impurity 44 (CAS CATO-C4X-222644)
Why CATO?
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