Indocyanine Green Impurity 52 CAS CATO-C4X-250352
| CAS No. | CATO-C4X-250352 |
| Molecular Formula | C24H27NO4S |
| Molecular Weight | 425.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Indocyanine Green Impurity 52 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Indocyanine Green Impurity 52 (CAS CATO-C4X-250352) is a certified pharmaceutical impurity reference standard with the molecular formula C24H27NO4S and a molecular weight of 425.54 g/mol.
Indocyanine Green Impurity 52 (C24H27NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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 supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C24H27NO4S |
| Molecular Weight | 425.54 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Indocyanine Standards
- Indocyanine Green Impurity 43 (CAS CATO-C4X-250343)
- Indocyanine Green Impurity 63 (CAS CATO-C4X-250363)
- Indocyanine green Impurity 57 (CAS CATO-C4X-250357)
- Indocyanine Green Impurity 17 (CAS CATO-C4X-250317)
- Indocyanine Green Impurity 61 (CAS CATO-C4X-250361)
- Indocyanine Green Impurity 16 (CAS CATO-C4X-250316)
- Indocyanine Green Impurity 42 (CAS 1182721-75-0)
- Indocyanine Green Impurity 28 (CAS 906772-02-9)
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