5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] CAS 72968-67-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 72968-67-3 |
| Molecular Formula | C24H20N2O4S C12H12N2O C9H4O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] (CAS 72968-67-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C24H20N2O4S C12H12N2O C9H4O5. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C24H20N2O4S C12H12N2O C9H4O5 |
| Molecular Weight | 824.86 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 30.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Isobenzofurancarboxylic Standards
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- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (CAS 25053-57-0)
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Recommended Standards
- 3-Pyrrolidinylmethyl 2-furoate hydrochloride (CAS 1220037-26-2)
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- Encorafenib Impurity 2 (CAS 1269440-29-0)
- 2-(Difluoromethyl)-4-iodo-3-methylpyridine-5-carboxaldehyde (CAS 1805548-70-2)
- 4,8-dichloro-6-nitro-quinazoline (CAS 1565709-14-9)
- 2-Bromo-5-chloro-N-methoxy-N-methylbenzamide (CAS 455957-87-6)
- Neuropeptide K, porcine (CAS 106441-70-7)
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