Sodium Cromoglicate Impurity 3 CAS CATO-C4X-20113
| CAS No. | CATO-C4X-20113 |
| Molecular Formula | C23H16O11 |
| Molecular Weight | 468.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Sodium Cromoglicate Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 468.37 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).
CATO supplies Sodium Cromoglicate Impurity 3 (CAS CATO-C4X-20113), a pharmacopoeial impurity reference standard (molecular formula C23H16O11, MW 468.37 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Sodium Cromoglicate Impurity 3 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 | C23H16O11 |
| Molecular Weight | 468.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Sodium Standards
- Sodium Cromoglicate Impurity 11 (CAS 16110-51-3)
- Sodium Cromoglicate Impurity 14 (CAS CATO-C4X-201114)
- Sodium Cromoglicate Impurity 19 (CAS CATO-C4X-201119)
- Sodium Cromoglicate Impurity 20 (CAS CATO-C4X-201120)
- Sodium Cromoglicate Impurity 4 (CAS CATO-C4X-20114)
- Sodium Cromoglicate Impurity 25 (CAS 40786-63-8)
- Sodium Cromoglicate Impurity 15 (CAS 149992-30-3)
- Sodium Cromoglicate Impurity 18 (CAS CATO-C4X-201118)
Recommended Standards
- Manganese (Salen-3,3'-diethoxy)acetate (CAS 186350-27-6)
- CAS 76746-56-0 (CAS 76746-56-0)
- 4-[3,5-Bis(trifluoromethyl)benzoyl]-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326812-00-3)
- 4-Iodo-5-(trifluoromethyl)-1-(triisopropylsilyl)-1h-pyrrolo[2,3-b]pyridine (CAS 1261365-73-4)
- Glucosamine sulfate (CAS CATO-C4X-194626)
- Indometacin Impurity 59 (CAS CATO-C4X-147059)
- Isavuconazole Impurity 82 (CAS CATO-C4X-123682)
- 4-(Difluoromethyl)-3-methoxy-2-methyl-5-(trifluoromethyl)pyridine (CAS 1806033-65-7)
- (S)-2-(Phenoxymethyl)pyrrolidine hydrochloride (CAS 174213-52-6)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(furan-2-yl)acetic acid (CAS 1260611-37-7)
- tert-Butyl 2-(((S)-2-amino-N,3-dimethylbutanamido)methyl)pyrrolidine-1-carboxylate (CAS 1354027-16-9)
- N-(3-(6-Chlorobenzo[d]oxazol-2-yl)-5-methylphenyl)-4-ethoxybenzamide (CAS 590396-53-5)
- 4-Methyl-N-((3-methylisoxazol-5-yl)methyl)aniline (CAS 1340844-08-7)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com