4,4'-Dichloro-[1,1'-biphenyl]-3,3'-dicarboxylic acid CAS 70994-42-2
| CAS No. | 70994-42-2 |
| Molecular Formula | C14H8Cl2O4 |
| Molecular Weight | 311.12 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 4,4'-Dichloro-[1,1'-biphenyl]-3,3'-dicarboxylic acid.
4,4'-Dichloro-[1,1'-biphenyl]-3,3'-dicarboxylic acid (CAS 70994-42-2) is a high-purity analytical reference standard with the molecular formula C14H8Cl2O4 and a molecular weight of 311.12 g/mol.
Structurally, 4,4'-Dichloro-[1,1'-biphenyl]-3,3'-dicarboxylic acid (C14H8Cl2O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 311.12 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 4,4'-Dichloro-[1,1'-biphenyl]-3,3'-dicarboxylic acid 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 | C14H8Cl2O4 |
| Molecular Weight | 311.12 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, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
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- 4-Fluoro-3,3-dimethyl-2,3-dihydro-1H-inden-1-one (CAS 1501959-50-7)
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- {4-[2-Amino-6-(cyclopropylmethyl)-9H-purin-9-yl]cyclopent-2-en-1-yl}methanol sulfate (CAS 1902343-14-9)
- tert-Butyl 5-chlorofuran-2-carboxylate (CAS 59862-84-9)
- Roxatidine Impurity 15 (CAS CATO-C4X-121315)
- Liraglutide-d8 Tritrifluoroacetate (CAS CATO-C4X-199223)
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