5,5'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethynediyl)bis-isophthalic acid CAS 901452-03-7
| CAS No. | 901452-03-7 |
| Molecular Formula | C32H18O8 |
| Molecular Weight | 530.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,5'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethynediyl)bis-isophthalic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5,5'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethynediyl)bis-isophthalic acid (CAS 901452-03-7) is a high-purity analytical reference standard with the molecular formula C32H18O8 and a molecular weight of 530.48 g/mol.
Structurally, 5,5'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethynediyl)bis-isophthalic acid (C32H18O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 24.0, corresponding to approximately 24 ring(s) or double-bond equivalent(s). With a molecular weight of 530.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C32H18O8 |
| Molecular Weight | 530.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
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- Oxetane, 3-(4-bromo-2-fluorophenoxy)- (CAS 1408088-59-4)
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- (4-(tert-Butoxy)-3-cyclopropoxyphenyl)(methyl)sulfane (CAS 1243442-52-5)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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