5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 4,4'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] CAS 72968-66-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 72968-66-2 |
| Molecular Formula | C24H20N2O4S C12H12N2O C9H4O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 4,4'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] (CAS 72968-66-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C24H20N2O4S C12H12N2O C9H4O5. Batch-specific COA and technical support are available on request.
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
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,4-cyclohexanedimethanol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione (CAS 153640-63-2)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (CAS 25053-57-0)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-methylenebis[benzenamine] and rel-(3aR,4S,7R,7aS)-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione (CAS 53368-84-6)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 5,5'-carbonylbis[1,3-isobenzofurandione], 2,4-diisocyanato-1-methylbenzene and 1,1'-methylenebis[4-isocyanatobenzene] (CAS 62009-59-0)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,2-propanediol (CAS 63948-88-9)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with ethenylbenzene and 2-propen-1-ol (CAS 65186-04-1)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 2,2'-oxybis[ethanol] and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione (CAS 70942-07-3)
- 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)
Recommended Standards
- 6-Ethynyl-2,3-dihydro-1H-inden-1-one (CAS 1211588-31-6)
- (2-(3-Methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)thiazol-4-yl)(4-methylpiperazin-1-yl)methanone (CAS 956705-37-6)
- 2-Benzylhexahydro-1H-pyrido[1,2-a]pyrazin-8(2H)-one (CAS 1369354-81-3)
- tert-Butyl N-[2-(hydroxymethyl)-1-benzofuran-5-yl]carbamate (CAS 1092352-63-0)
- 1-[(4-bromophenyl)methyl]pyrrolidine hydrochloride (CAS 1609402-88-1)
- 2-Chloro-4-phenyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 1132758-35-0)
- Peptide Impurity 15 (CAS 1227750-69-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com