Sodium Cromoglicate Impurity 16 CAS CATO-C4X-201116
| CAS No. | CATO-C4X-201116 |
| Molecular Formula | C36H26O17 |
| Molecular Weight | 730.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Sodium Cromoglicate Impurity 16 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 730.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a process- or degradation-related impurity, Sodium Cromoglicate Impurity 16 (CAS CATO-C4X-201116, C36H26O17) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Sodium Cromoglicate Impurity 16 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 | C36H26O17 |
| Molecular Weight | 730.58 g/mol |
| Purity | >95% |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Sodium Standards
- Sodium Cromoglicate Impurity 26 (CAS CATO-C4X-201126)
- Sodium Cromoglicate Impurity 22 (CAS CATO-C4X-201122)
- Cromoglicate Lisetil (CAS 110816-79-0)
- Sodium Cromoglicate Impurity 28 (CAS CATO-C4X-201128)
- Sodium Cromoglicate Impurity 21 (CAS CATO-C4X-201121)
- Sodium Cromoglicate Impurity 29 (CAS CATO-C4X-201129)
- Sodium Cromoglicate Impurity 23 (CAS CATO-C4X-201123)
- Cromoglicate EP Impurity B (CAS 16150-45-1)
Recommended Standards
- Chloramphenicol side chain acid polymer (CAS CATO-C4X-232136)
- Arbidol Impurity 42 (CAS 153633-14-8)
- Napipitant Impurity 2 (CAS CATO-C4X-34852)
- Pipotiazine Impurity 2 (CAS CATO-C4X-33612)
- N-ethyl Formoterol Impurity 77 (CAS CATO-C4X-152577)
- Bisoprolol EP Impurity N Hemifumarate (CAS CATO-C4X-124738)
- Nimesulide EP Impurity A (CAS 51765-56-1)
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- (S)-2-Amino-N-ethyl-N-(2-methylbenzyl)propanamide (CAS 1307127-83-8)
- Cinacalcet Impurity 113 (CAS 67646-72-4)
- 2-(6-Bromo-5-methyl-2,4-dioxo-1,2-dihydrothieno[2,3-d]pyrimidin-3(4H)-yl)-2-methylpropanoic acid (CAS 1434651-13-4)
- 2-(4-(2-Aminoethyl)piperazin-1-yl)ethan-1-ol (CAS 20542-08-9)
- Methyl 2,3,4,6-tetra-O-benzyl-D-mannopyranoside (CAS 83462-67-3)
- C-telopeptide (CAS 162929-64-8)
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