Phloroglucinol Impurity 75 CAS CATO-C4X-221775
| CAS No. | CATO-C4X-221775 |
| Molecular Formula | C13H12O7 |
| Molecular Weight | 280.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 280.23 g/mol gives Phloroglucinol Impurity 75 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Phloroglucinol Impurity 75 (CAS CATO-C4X-221775), a pharmacopoeial impurity reference standard (molecular formula C13H12O7, MW 280.23 g/mol) used for the identification and quantification of trace impurities in APIs.
Phloroglucinol Impurity 75 (C13H12O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 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.
As a certified reference material (CRM), Phloroglucinol Impurity 75 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.
Physical & Chemical Properties
| Molecular Formula | C13H12O7 |
| Molecular Weight | 280.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Phloroglucinol Standards
- Phloroglucinol Impurity 74 (CAS CATO-C4X-221774)
- Phloroglucinol Impurity 79 (CAS CATO-C4X-221779)
- Phloroglucinol Impurity 39 (CAS CATO-C4X-221739)
- Phloroglucinol Impurity 62 (CAS CATO-C4X-221762)
- Phloroglucinol Impurity 2 (CAS 61524-51-4)
- Phloroglucinol Impurity 42 (CAS CATO-C4X-221742)
- Phloroglucinol Impurity 69 (CAS 53254-99-2)
- Phloroglucinol Impurity 77 (CAS CATO-C4X-221777)
Recommended Standards
- 4-Maleimidobutyric acid N-hydroxysuccinimide ester (CAS 80307-12-6)
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- 655244-17-0 3-[(2,4-Dinitrophenyl)methyl]pentane-2,4-dione DTXSID50721031 (CAS 655244-17-0)
- Minocycline Impurity 57 (CAS CATO-C4X-169957)
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- Tenofovir alafenamide impurity 74 (CAS 2053424-88-5)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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