4'-Hydroxy-3,3',4,5'-tetrachlorobiphenyl CAS 111810-41-4
| CAS No. | 111810-41-4 |
| Molecular Formula | C12H6Cl4O |
| Molecular Weight | 307.99 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 4'-Hydroxy-3,3',4,5'-tetrachlorobiphenyl.
4'-Hydroxy-3,3',4,5'-tetrachlorobiphenyl (CAS 111810-41-4), molecular formula C12H6Cl4O and molecular weight 307.99 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4'-Hydroxy-3,3',4,5'-tetrachlorobiphenyl (C12H6Cl4O) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 307.99 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C12H6Cl4O |
| Molecular Weight | 307.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
Related Hydroxy Standards
- 4-Hydroxy-2',3',5',6'-tetrachlorobiphenyl (CAS 14962-32-4)
- 4-Hydroxy-2,2',4',6'-tetrachlorobiphenyl (CAS 150304-08-8)
- 3-Hydroxy-2',3',4',5'-tetrachlorobiphenyl (CAS 67651-37-0)
- 4-Hydroxy-2',3',4',5'-tetrachlorobiphenyl (CAS 67651-34-7)
- 4-Hydroxy-2',3,5,5'-tetrachlorobiphenyl (CAS 245084-57-5)
- 4-Hydroxy-3,3',4',5'-tetrachlorobiphenyl (CAS 244035-65-2)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-bromothiazol-5-yl)boronate (CAS 2223032-14-0)
- Methyl 2-hydroxy-5-iodo-4-methoxybenzoate (CAS 1131587-46-6)
Recommended Standards
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- methyl 4-formyl-5-methylfuran-2-carboxylate (CAS 7039-85-2)
- tert-Butyl (3-(3-oxoazetidin-1-yl)bicyclo[1.1.1]pentan-1-yl)carbamate (CAS 2654797-82-5)
- Methyl 2-{4-[4-(trifluoromethyl)phenyl]phenyl}acetate (CAS 1417525-85-9)
- 2,6-Dihydroxy-4-methylbenzoic acid (CAS 480-67-1)
- 2-(4-Aminopiperidin-1-yl)-N-methylacetamide dihydrochloride (CAS 882562-64-3)
- Metoprolol Impurity 19 (CAS 230975-30-1)
- 2,2'-(2-Methylpropane-1,1-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1512864-17-3)
- 2-(3-Hydroxytetrahydrofuran-3-yl)propanoic acid (CAS 1341080-40-7)
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