Adapalene Impurity 11 CAS CATO-C4X-180911
| CAS No. | CATO-C4X-180911 |
| Molecular Formula | C19H16O5S |
| Molecular Weight | 356.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Adapalene Impurity 11 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.
CATO supplies Adapalene Impurity 11 (CAS CATO-C4X-180911), a pharmacopoeial impurity reference standard (molecular formula C19H16O5S, MW 356.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C19H16O5S, Adapalene Impurity 11 contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 356.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C19H16O5S |
| Molecular Weight | 356.39 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Adapalene Standards
- Adapalene Impurity 14 (CAS 1036766-56-9)
- Adapalene Impurity 10 (CAS 161912-38-5)
- Adapalene EP Impurity A (CAS 932033-58-4)
- Adapalene impurity 20 (CAS CATO-C4X-180920)
- Adapalene Impurity 12 (CAS 1063712-23-1)
- Adapalene Impurity 13 (CAS 106685-43-2)
- Adapalene (CAS 106685-40-9)
- Adapalene-d6 (CAS CATO-C4X-180918)
Recommended Standards
- Cefazolin Impurity 70 (CAS CATO-C4X-157770)
- 3-Phenyl-2-(2-thienylcarbonyl)indeno[1,2-c]pyrazol-4(2H)-one (CAS 1020251-78-8)
- N-(6-Fluoro-8-phenyl-5,10-dihydroindeno[1,2-b]indol-2-yl)acetamide (CAS 920303-13-5)
- 2-(4-(4-Ethoxyphenyl)-6-oxopyrimidin-1(6H)-yl)-N-(thiazol-2-yl)acetamide (CAS 1058461-69-0)
- Clopidogrel Impurity 81 (CAS 1147350-75-1)
- Ruilugoli lmpurity 129 (CAS CATO-C4X-2429129)
- Nefopam Impurity 36 (CAS 13831-42-0)
- 2-bromo-6-fluoro-N-methoxy-N-methylbenzamide (CAS 1341037-81-7)
- 1-Methyl-6-(methylamino)pyrimidine-2,4(1H,3H)-dione (CAS 89465-16-7)
- Olprinone Impurity 19 (CAS CATO-C4X-204319)
- 4-methyl-2-({[(3-methylbutyl)carbamoyl]amino}methyl)pentanoic acid (CAS 1538730-32-3)
- 4-(3-Aminoprop-1-en-1-yl)benzonitrile (CAS 83680-97-1)
- 1-[3-(Trifluoromethyl)pyridin-2-yl]piperidin-3-amine (CAS 1305860-95-0)
- Semaglutide (CAS 910463-68-2（free base）)
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