4',5'-Dibromo-[1,1':2',1''-terphenyl]-4,4''-dicarboxylicacid CAS 1670924-30-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1670924-30-7 |
| Molecular Formula | C20H12Br2O4 |
| Molecular Weight | 476.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4',5'-Dibromo-[1,1':2',1''-terphenyl]-4,4''-dicarboxylicacid (CAS 1670924-30-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H12Br2O4. Molecular weight: 476.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H12Br2O4 |
| Molecular Weight | 476.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
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Recommended Standards
- 2,3,4,5-Tetra-O-acetyl-1,6-dibromo-1,6-dideoxy-D-mannitol (CAS 15410-49-8)
- 2,2,3,3,3-Pentafluoropropyl (2,2,3,3,4,4,5,5,6,6,6-undecafluorohexyl) carbonate (CAS 1980076-42-3)
- Zoledronic Acid Impurity 2（Zoledronic Acid EP Impurity B） (CAS 1627731-61-6)
- 2-ethylquinolin-4-amine (CAS 7176-11-6)
- 3-(5-Bromo-2-fluoro-phenyl)-propionic acid (CAS 881189-58-8)
- 2-(cyclopropylmethoxy)ethyl methanesulfonate (CAS 63659-84-7)
- 1,2,3,4-Tetrahydronaphthalene-1-sulfonamide (CAS 1247756-17-7)
- 1-Tert-butyl3-methyltrans-5-aminopiperidine-1,3-dicarboxylate (CAS 1208359-58-3)
- 2-(1,1-Difluoroethyl)-1,3-difluorobenzene (CAS 1138445-06-3)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
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