1,1-Bis(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]ethan-1-ol CAS 303152-30-9
| CAS No. | 303152-30-9 |
| Molecular Formula | C20H14Cl4OS |
| Molecular Weight | 444.20 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-Bis(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]ethan-1-ol.
1,1-Bis(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]ethan-1-ol (CAS 303152-30-9) is a high-purity analytical reference standard with the molecular formula C20H14Cl4OS and a molecular weight of 444.20 g/mol.
Structurally, 1,1-Bis(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]ethan-1-ol (C20H14Cl4OS) contains a steroid core, sulfur-containing functionality, 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 444.20 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.
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.
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 | C20H14Cl4OS |
| Molecular Weight | 444.20 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 |
| 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-((3,4-dichlorophenyl)thio)ethanol (CAS 303152-29-6)
- Ethyl 4-(4-chlorophenyl)-2-((3-chloroquinoxalin-2-yl)amino)thiophene-3-carboxylate (CAS 744230-47-5)
- 2-(4-Chlorophenyl)-5-((4-chlorophenyl)thio)-4-(4-methoxyphenyl)thiazole (CAS 865658-09-9)
- 1-{[5-(2-chlorophenyl)-1,2-oxazol-3-yl]methyl}-4-(diphenylmethyl)piperazine (CAS 339019-78-2)
- 5-{[(3-chlorophenyl)methyl]sulfanyl}-8,9-dimethoxy-3-(propan-2-yl)-2H,3H-imidazo[1,2-c]quinazolin-2-one (CAS 1031798-92-1)
- 2-((5-(4-Chlorophenyl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 771517-41-0)
- 4-{[(4-chlorophenyl)methyl]sulfanyl}-6-(4-methoxyphenyl)-2-phenylpyrimidine-5-carbonitrile (CAS 338395-37-2)
- Ethyl 1-(4-chlorophenyl)-3-methyl-4-{[2-(morpholin-4-yl)ethyl]amino}-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 866132-85-6)
Recommended Standards
- 1,6-Dibromo-3,8-diisopropylpyrene (CAS 869340-02-3)
- trans-3,4-Dibromo-N-methyl-N-(1-methyl-1-azaspiro[4.5]dec-6-yl)-benzamide (CAS 119878-31-8)
- 2',7'-Dibromospiro[adamantane-2,9'-fluorene] (CAS 727730-32-7)
- 51592-06-4 Iodo-gen 1,3,4,6-Tetrachloro-3 alpha,6 alpha-diphenylglycoluril Glycoluril, 1,3,4,6-tetrachloro-3a,6a-diphenyl- Imidazo(4,5-d)imidazole-2,5(1H,3H)-dione, 1,3,4,6-tetrachlorotetrahydro-3a,6a-diphenyl- 1,3,4,6-Tetrachlorotetrahydro-3a, 6a-diphenylimidazo(4,5-d)imidazole-2,5(1H,3H)-dione 1-26-00-00148 (Beilstein Handbook Reference) BRN 0363328 NSC 4462 1,3,4,6-Tetrachloro-3a,6a-diphenylglycoluril Iodogen (CAS 51592-06-4)
- (R)-1-(2-bromo-6-fluorophenyl)ethan-1-amine (CAS 1213941-47-9)
- (4r)-3-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methylhexanoic acid (CAS 1933763-89-3)
- (S)-2-Amino-3-(3-chloro-4-fluorophenyl)propanoic acid (CAS 783241-21-4)
- (2S,3S)-1,4-Bis(benzyloxy)butane-2,3-diamine (CAS 139951-77-2)
- tert-butyl (2R,6R)-2,6-dimethyl-3-oxo-piperazine-1-carboxylate (CAS 2306247-68-5)
- 7-Methoxy-3-oxo-3H-phenoxazine 10-oxide (CAS 5748-27-6)
- Methyl 5-amino-2-(benzyloxy)benzoate hydrochloride (CAS 1452565-52-4)
- Erlotinib Impurity 113 (CAS 587-02-0)
- 4-Bromo-2-(2-(methylsulfonyl)propan-2-yl)pyridine (CAS 1402390-66-2)
- Peptide Impurity (CAS CATO-CPTD788810)
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