Fluocinolone Acetonide Impurity 15 CAS 1181-32-4
| CAS No. | 1181-32-4 |
| Molecular Formula | C26H32ClFO7 |
| Molecular Weight | 510.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 510.98 g/mol gives Fluocinolone Acetonide Impurity 15 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Fluocinolone Acetonide Impurity 15 (CAS 1181-32-4, C26H32ClFO7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, a polycyclic aromatic system, Fluocinolone Acetonide Impurity 15 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 510.98 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Fluocinolone Acetonide Impurity 15 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 | C26H32ClFO7 |
| Molecular Weight | 510.98 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Cl-containing |
Related Fluocinolone Standards
- Fluocinolone Acetonide Impurity 36 (CAS CATO-C4X-238136)
- Fluocinolone Acetonide Impurity 23 (CAS CATO-C4X-238123)
- Fluocinolone Acetonide Impurity 27 (CAS 3932-49-8)
- Fluocinolone Acetonide Impurity 32 (CAS 3914-23-6)
- Fluocinolone Acetonide EP Impurity M (CAS 356-12-7)
- Fluocinolone Acetonide Impurity 24 (CAS CATO-C4X-238124)
- Fluocinolone Acetonide Impurity 17 (CAS CATO-C4X-238117)
- Fluocinolone Acetonide Impurity 4 (CAS 62013-83-6)
Recommended Standards
- Eldecalcitol Impurity 37 (CAS 235107-98-9)
- N-(5-chloro-2-methoxyphenyl)-2-((5-((4-methoxyphenoxy)methyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332912-73-9)
- Pazopanib Impurity 37 (CAS 1226500-02-2)
- 3-Amino-N-(5-((2-chlorobenzyl)thio)-1,3,4-thiadiazol-2(3H)-ylidene)-6-(pyridin-4-yl)thieno[2,3-b]pyridine-2-carboxamide (CAS 445267-60-7)
- Vardenafil Impurity 55 (CAS 2520113-41-9)
- Isavuconazole Impurity 64 xTrifluoroacetate（Easy to absorb moisture） (CAS 2832083-17-5（free base))
- Olmesartan Impurity 47 (CAS 1048948-15-7)
- 4-Chloro-6-methoxy-2-methyl-3-propylquinoline (CAS 3348-22-9)
- 2-(4-Amino-5-(difluoromethyl)-6-(trifluoromethyl)pyridin-3-yl)acetic acid (CAS 1806839-73-5)
- Methyl 2-(4-(benzyloxy)-3-bromophenyl)acetate (CAS 101111-25-5)
- N-(4-bromophenyl)-2-cyano-3-(pyridin-3-yl)propanamide (CAS 483359-41-7)
- 2-(3-Methoxyphenyl)-5,6,7,8-tetrahydro-4H-benzo[e][1,3]oxazine-4-thione (CAS 710985-76-5)
- (Z)-1-(Furan-3-yl)-4,8-dimethylnona-4,7-diene-1,6-dione (CAS 92448-65-2)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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