Mometasone Impurity 42 CAS CATO-C4X-170442
| CAS No. | CATO-C4X-170442 |
| Molecular Formula | C27H30Cl2O6 |
| Molecular Weight | 521.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Mometasone Impurity 42 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.
Mometasone Impurity 42 (CAS CATO-C4X-170442) is a certified pharmaceutical impurity reference standard with the molecular formula C27H30Cl2O6 and a molecular weight of 521.43 g/mol.
The molecular framework of Mometasone Impurity 42 (C27H30Cl2O6) is characterized by a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C27H30Cl2O6 |
| Molecular Weight | 521.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ＞90% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Mometasone Standards
- Mometasone Furoate EP Impurity S (CAS 2231764-75-1)
- Mometasone Furoate Impurity 26 (CAS CATO-C4X-170426)
- Mometasone Impurity 37 (CAS CATO-C4X-170437)
- Mometasone Furoate (CAS 83919-23-7)
- Mometasone Furoate Impurity 11 (CAS CATO-C4X-170411)
- Mometasone Furoate-d3 (CAS CATO-C4X-170422)
- Mometasone furoate-d3 (CAS CATO-CCAD303855)
- Mometasone Impurity 27 (CAS 201601-32-3)
Recommended Standards
- Dabrafenib Impurity 26 (CAS CATO-C4X-303326)
- 1-(Tert-butyldimethylsilyl)-5-(tributylstannyl)-1H-pyrrolo[2,3-b]pyridine (CAS 754214-65-8)
- Amiodarone EP Impurity C (CAS 85642-08-6)
- Tofacitinib Impurity 205 (CAS 2459302-87-3)
- Lusutrombopag Impurity N5 (CAS 29841-69-8)
- Ropivacaine Impurity 24 (CAS 36588-46-2)
- Somatostatin Impurity 2 (CAS CATO-C4X-23502)
- (3-(Morpholine-4-carbonyl)-5-nitrophenyl)boronic acid (CAS 871332-80-8)
- 4-(4-Fluorobenzamido)benzoic acid (CAS 54057-46-4)
- (R)-2-(2,3-dichloro-6-fluorophenyl)pyrrolidine (CAS 1241680-18-1)
- 6-(Trifluoromethyl)-3-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 51031-76-6)
- 3,4-Dihydro-2(1H)-isoquinolinyl(3-piperidinyl)-methanone hydrochloride (CAS 1220034-95-6)
- rel-(2R,4S)-2-((Benzyloxy)methyl)-1-(tert-butoxycarbonyl)-4-fluoropyrrolidine-2-carboxylic acid (CAS 2763156-88-1)
- Neuropeptide FF (CAS 99566-27-5)
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