Sodium Cromoglicate Impurity 6 CAS 802857-44-9
| CAS No. | 802857-44-9 |
| Molecular Formula | C13H12O7 |
| Molecular Weight | 280.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Sodium Cromoglicate Impurity 6 (CAS 802857-44-9) is a certified pharmaceutical impurity reference standard with the molecular formula C13H12O7 and a molecular weight of 280.23 g/mol.
Sodium Cromoglicate Impurity 6 (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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Sodium Cromoglicate Impurity 6 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 | 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 |
| CAS Registry Year (est.) | 1986 |
Related Sodium Standards
- Sodium Cromoglicate Impurity C51 (CAS 16130-17-9)
- Sodium Cromoglicate Impurity 12 (CAS CATO-C4X-201112)
- Sodium Cromoglicate Impurity 10 (CAS 50521-64-7)
- Sodium Cromoglicate Impurity 9 (CAS 3361-18-0)
- Sodium Cromoglicate Impurity 8 (CAS 16130-28-2)
- Sodium Cromoglicate Impurity 13 (CAS 53878-47-0)
- Sodium Cromoglicate Impurity 30 (CAS CATO-C4X-201130)
- Sodium Cromoglicate Impurity 7 (CAS CATO-C4X-20117)
Recommended Standards
- 655244-17-0 3-[(2,4-Dinitrophenyl)methyl]pentane-2,4-dione DTXSID50721031 (CAS 655244-17-0)
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- N1-(2,5-Difluorophenyl)-N2-(furan-2-ylmethyl)oxalamide (CAS 899956-48-0)
- Phloroglucinol Impurity 75 (CAS CATO-C4X-221775)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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