Crisaborole lmpurity 84 CAS CATO-C4X-202184
| CAS No. | CATO-C4X-202184 |
| Molecular Formula | C17H23BO6 |
| Molecular Weight | 334.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Crisaborole lmpurity 84.
Crisaborole lmpurity 84 (CAS CATO-C4X-202184) is a certified pharmaceutical impurity reference standard with the molecular formula C17H23BO6 and a molecular weight of 334.17 g/mol.
Based on its molecular formula C17H23BO6, Crisaborole lmpurity 84 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 334.17 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 Crisaborole lmpurity 84 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 | C17H23BO6 |
| Molecular Weight | 334.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Crisaborole Standards
- Crisaborole impurity 158 (CAS CATO-C4X-2021158)
- Crisaborole impurity 124 (CAS CATO-C4X-2021124)
- Crisaborole Impurity 143 (CAS CATO-C4X-2021143)
- Crisaborole Impurity 12 (CAS CATO-C4X-202112)
- Crisaborole impurity 128 (CAS CATO-C4X-2021128)
- Crisaborole impurity 127 (CAS CATO-C4X-2021127)
- Crisaborole Impurity 58 (CAS CATO-C4X-202158)
- Crisaborole lmpurity 100 (CAS CATO-C4X-2021100)
Recommended Standards
- Norfloxacin Impurity 67 (CAS CATO-C4X-146867)
- Pefloxacin Impurity 7 (CAS CATO-C4X-23337)
- Norfloxacin Impurity 39 (CAS CATO-C4X-146839)
- Pefloxacin Impurity 8 (CAS CATO-C4X-23338)
- Loxoprofen Impurity 168 (CAS CATO-C4X-1488168)
- Tolvaptan Impurity 116 (CAS 1580889-35-5)
- Obeticholic Acid Impurity 14 (CAS CATO-C4X-115314)
- H-Trp-Tyr-OH (CAS 19653-76-0)
- Rel-(2R,3S)-2-methyl-3-phenyloxirane (CAS 4541-87-1)
- (S)-(4-(Methylsulfonyl)morpholin-2-yl)methanamine (CAS 1353897-63-8)
- (S)-4-(tert-butoxy)-2-((R)-2,3-dihydro-1H-inden-1-yl)-4-oxobutanoic acid (CAS 2426657-30-7)
- 3-Amino-3-(hydroxyimino)-N-(4-morpholinophenyl)propanamide (CAS 793727-57-8)
- 2H-Thiochromen-2-one (CAS 1075-14-5)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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