1,1-Bis(4-chlorophenyl)-2-(3,4-dichlorobenzenesulfinyl)ethan-1-ol CAS 303152-33-2
| CAS No. | 303152-33-2 |
| Molecular Formula | C20H14Cl4O2S |
| Molecular Weight | 460.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,1-Bis(4-chlorophenyl)-2-(3,4-dichlorobenzenesulfinyl)ethan-1-ol 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.
1,1-Bis(4-chlorophenyl)-2-(3,4-dichlorobenzenesulfinyl)ethan-1-ol (CAS 303152-33-2) is a high-purity analytical reference standard with the molecular formula C20H14Cl4O2S and a molecular weight of 460.20 g/mol.
Structurally, 1,1-Bis(4-chlorophenyl)-2-(3,4-dichlorobenzenesulfinyl)ethan-1-ol (C20H14Cl4O2S) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 460.20 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H14Cl4O2S |
| Molecular Weight | 460.20 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Bis Standards
- 1,1-Bis(4-chlorophenyl)-2-(2,6-dichlorobenzenesulfinyl)ethan-1-ol (CAS 303152-36-5)
- (E)-[(4-Chlorophenyl)methoxy]({5-[(4-chlorophenyl)sulfanyl]-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl}methylidene)amine (CAS 321533-78-2)
- 3-(2-Chlorophenyl)-5-methyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)isoxazole-4-carboxamide (CAS 349613-51-0)
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- 3-(4-Chlorophenyl)-4-(p-tolyl)-5-((3-(trifluoromethyl)benzyl)thio)-4H-1,2,4-triazole (CAS 477330-96-4)
- 3-((3-Chlorophenyl)sulfonyl)-6,7-difluoro-1-(4-methylbenzyl)quinolin-4(1H)-one (CAS 1326901-66-9)
- 3-(4-Chlorophenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)-3,4-dihydrophthalazine-1-carboxamide (CAS 320417-62-7)
- 4-(4-(2-Chlorophenyl)thiazol-2-yl)-N-(2,4-dichlorophenyl)benzamide (CAS 338396-98-8)
Recommended Standards
- 6,6,7,7,8,8,9,9,10,10,11,11,11-Tridecafluoroundecyl acrylate (CAS 1000339-61-6)
- 3-Chloro-2-((1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-1,2,4-triazol-3-yl)thio)-5-(trifluoromethyl)pyridine (CAS 251307-13-8)
- (5-(4-Chlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl (4-chlorophenyl)carbamate (CAS 318469-23-7)
- 8-(4-Bromophenyl)-2,4-bis(trifluoromethyl)imidazo[1,2-a]1,8-naphthyridine (CAS 439093-95-5)
- 4-(4-Bromophenyl)-2,6-dichloro-5-methylpyrimidine (CAS 1479931-46-8)
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- 3-Amino-5-iodophenol (CAS 1243460-79-8)
- Metoclopramide Impurity 105 (CAS 1787767-11-6 (free base))
- 3-((3-Fluorobenzyl)thio)-5-(p-tolyl)-4H-1,2,4-triazol-4-amine (CAS 676581-20-7)
- Relebactam Impurity 142 (CAS CATO-C4X-2144142)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
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