3,3'-Dibromo-4,4'-dihydroxybiphenyl CAS 189039-64-3
| CAS No. | 189039-64-3 |
| Molecular Formula | C12H8Br2O2 |
| Molecular Weight | 344.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,3'-Dibromo-4,4'-dihydroxybiphenyl is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,3'-Dibromo-4,4'-dihydroxybiphenyl (CAS 189039-64-3) is a high-purity analytical reference standard with the molecular formula C12H8Br2O2 and a molecular weight of 344.00 g/mol.
Structurally, 3,3'-Dibromo-4,4'-dihydroxybiphenyl (C12H8Br2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine 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 344.00 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3,3'-Dibromo-4,4'-dihydroxybiphenyl 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 | C12H8Br2O2 |
| Molecular Weight | 344.00 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 4,5-Dibromo-2-(m-tolyl)pyridazin-3(2H)-one (CAS 1035450-90-8)
- Methyl 6,7-dibromo-2-naphthoate (CAS 131331-18-5)
- 4,5-Dibromo-2-(p-tolyl)pyridazin-3(2H)-one (CAS 14132-98-0)
- 2,2'-Dibromo-[1,1'-biphenyl]-4,4'-diol (CAS 84530-62-1)
- 4,5-Dibromo-3-methylcyclohexane-1,2-dicarboxylic acid (CAS 65941-85-7)
- 1,3-Dibromo-2-(difluoromethoxy)-5-isopropylbenzene (CAS 2379322-22-0)
- 5,5'-Dibromo-[2,2'-bipyridine]-3,3'-diamine (CAS 464895-32-7)
- 1,3-Dibromo-5-(4-fluorobenzyl)benzene (CAS 1646313-44-1)
Recommended Standards
- 2,2'-Dihydroxy-5,5'-dibromobiphenyl (CAS 34261-55-7)
- 5-Bromo-3-pentafluoroethyl-2-trifluoromethylpyridine (CAS 1246466-66-9)
- 5-Bromo-2-pentafluoroethyl-3-trifluoromethylpyridine (CAS 1246466-50-1)
- 4-Bromo-2-(3-bromophenyl)-5-methylpyridazin-3(2H)-one (CAS 68143-27-1)
- D-Alanine (CAS 338-69-2)
- (9H-Fluoren-9-yl)methyl (2-(2-(3-(4,4-dimethyl-2,6-dioxocyclohexylidene)-3-hydroxypropoxy)ethoxy)ethyl)carbamate (CAS 1988771-96-5)
- 1-(3-Bromophenyl)pentan-2-one (CAS 1179269-06-7)
- 2-(Ethylamino)-2-methyl-4-(2-methyl-1h-imidazol-1-yl)butanamide (CAS 1248131-59-0)
- 1-Amino-3-isopropoxy-2-methylpropan-2-ol (CAS 1343514-30-6)
- 5-(4-Hydroxybenzyl)-3-propylimidazolidine-2,4-dione (CAS 1214645-12-1)
- (R)-2-Methyl-morpholine HCl (CAS 168038-14-0)
- trans-cyclobutane-1,3-diol (CAS 1332482-75-3)
- 2-Difluoromethyl-5-(trifluoromethyl)benzonitrile (CAS 1803808-90-3)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
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