Modafinil impurity 7 CAS 112111-43-0
| CAS No. | 112111-43-0 |
| Molecular Formula | C15H15NO2S |
| Molecular Weight | 273.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Modafinil impurity 7 (CAS 112111-43-0), a pharmacopoeial impurity reference standard (molecular formula C15H15NO2S, MW 273.35 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C15H15NO2S, Modafinil impurity 7 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 273.35 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.
CATO manufactures Modafinil impurity 7 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 | C15H15NO2S |
| Molecular Weight | 273.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Modafinil Standards
- Modafinil (CAS 68693-11-8)
- Modafinil impurity 6 (CAS 112111-47-4)
- Modafinil EP Impurity A (CAS 63547-24-0)
- (R)-Modafinil EP Impurity A (CAS 112111-45-2)
- Modafinil-d10 Carboxylate (CAS 1246819-82-8)
- (R)-Modafinil EP Impurity C (CAS 713134-72-6)
- (S)-Modafinil EP Impurity C (CAS 865811-65-0)
- Modafinil USP Related Compound C (CAS 68524-30-1)
Recommended Standards
- Levocabastine impurity 22 (CAS CATO-C4X-228922)
- Sempervirine (CAS 6882-99-1)
- Imipenem Impurity 5 (CAS CATO-C4X-16625)
- N-(5-cyclopropyl-1,4,5,6-tetrahydro-1,3,5-triazin-2-yl)benzo[d]thiazol-2-amine (CAS 1379811-24-1)
- Morinidazole Impurity 6 (CAS 1782143-94-5)
- Darunavir impurity 31 (CAS 1291087-81-4)
- Biotin EP Impurity B (CAS 57671-79-1)
- Labetalol Impurity 18 (CAS CATO-C4X-246618)
- Z-Gln-ONp (CAS 7763-16-8)
- 4-((2-(5-Benzyl-5H-[1,2,4]triazino[5,6-b]indol-3-yl)hydrazono)methyl)benzene-1,3-diol (CAS 322412-74-8)
- Methyl 5-(morpholinomethyl)furan-2-carboxylate (CAS 26095-04-5)
- 5-Butyl-2-(4-ethylphenyl)pyrimidine (CAS 64835-59-2)
- (R)-(2-((Di-o-tolylphosphanyl)methyl)pyrrolidin-1-yl)(2-(diphenylphosphanyl)phenyl)methanone (CAS 2755107-31-2)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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