5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] CAS 25053-57-0
| CAS No. | 25053-57-0 |
| Molecular Formula | C15H10N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (CAS 25053-57-0), a certified reference material (molecular formula C15H10N2O2C9H4O5, MW 442.38 g/mol) for analytical method development and quality control.
The molecular framework of 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (C15H10N2O2C9H4O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H10N2O2 C9H4O5 |
| Molecular Weight | 442.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
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)
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Recommended Standards
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