| CAS No. | 66319-61-7 |
| Molecular Formula | C17H6O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 4,4'-methylenebis[benzenamine], ammonium salt.
1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 4,4'-methylenebis[benzenamine], ammonium salt (CAS 66319-61-7) is a high-purity analytical reference standard with the molecular formula C17H6O7C13H13N2H4N and a molecular weight of 537.53 g/mol.
1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 4,4'-methylenebis[benzenamine], ammonium salt (C17H6O7C13H13N2H4N) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 4,4'-methylenebis[benzenamine], ammonium salt 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.
| Molecular Formula | C17H6O7 C13H13N2 H4N |
| Molecular Weight | 537.53 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 3 |