1,4-Benzenedicarboxylic acid, polymer with 1,1'-(1,4-phenylene) diacetate and 1,1'-[2-(1-phenylethyl)-1,4-phenylene] diacetate CAS 149982-43-4
| CAS No. | 149982-43-4 |
| Molecular Formula | C18H18O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,4-Benzenedicarboxylic acid, polymer with 1,1'-(1,4-phenylene) diacetate and 1,1'-[2-(1-phenylethyl)-1,4-phenylene] diacetate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1,4-Benzenedicarboxylic acid, polymer with 1,1'-(1,4-phenylene) diacetate and 1,1'-[2-(1-phenylethyl)-1,4-phenylene] diacetate (CAS 149982-43-4), molecular formula C18H18O4C10H10O4C8H6O4 and molecular weight 658.66 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H18O4C10H10O4C8H6O4, 1,4-Benzenedicarboxylic acid, polymer with 1,1'-(1,4-phenylene) diacetate and 1,1'-[2-(1-phenylethyl)-1,4-phenylene] diacetate contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 658.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C18H18O4 C10H10O4 C8H6O4 |
| Molecular Weight | 658.66 g/mol |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
Related Benzenedicarboxylic Standards
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Recommended Standards
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- 2-Bromo-3-cyclopropoxy-4-isopropylpyridine (CAS 1243389-44-7)
- Methyl 6-methoxybenzofuran-2-carboxylate (CAS 55364-67-5)
- 3-(Pyridin-4-yl)-1-trityl-1H-indazol-5-amine (CAS 1192873-43-0)
- 9,10-Dioxo-9,10-dihydroanthracene-1,4-dicarboxylic acid (CAS 54292-11-4)
- 2,3-Dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazol-8-amine (CAS 191794-37-3)
- 2-(3-Bromo-2-fluorophenyl)-2,2-difluoroethan-1-ol (CAS 2228290-44-4)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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