Desonide Impurity 13 CAS 5016-80-8
| CAS No. | 5016-80-8 |
| Molecular Formula | C26H33BrO7 |
| Molecular Weight | 537.44 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 Desonide Impurity 13.
As a process- or degradation-related impurity, Desonide Impurity 13 (CAS 5016-80-8, C26H33BrO7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Desonide Impurity 13 (C26H33BrO7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 537.44 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Desonide Impurity 13 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 | C26H33BrO7 |
| Molecular Weight | 537.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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.) | 1958 |
| Halogen Content | Br-containing |
Related Desonide Standards
- Desonide Bromo Impurity N9 (CAS 39672-77-0)
- Desonide 21-Acetate (CAS 25092-25-5)
- Desonide Impurity 11 (CAS 25092-32-4)
- Desonide Impurity 10 (CAS CATO-C4X-130110)
- Desonide Impurity 17 (CAS CATO-C4X-130117)
- Desonide Impurity 18 (CAS CATO-C4X-130118)
- Desonide Impurity 16 (CAS CATO-C4X-130116)
- delta-14-Desonide (CAS 131918-67-7)
Recommended Standards
- 2,2'-Methylenebis(5-(4-chlorophenyl)thieno[2,3-d]pyrimidin-4(3h)-one) (CAS 729578-85-2)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-bis(trifluoromethyl)benzyl)propanoic acid (CAS 1260587-04-9)
- Mometasone Furoate Impurity 40 (CAS CATO-C4X-170440)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(3,5-bis(trifluoromethyl)phenyl)butanoic acid (CAS 1260613-48-6)
- Entacapone Impurity 10 (CAS CATO-C4X-162910)
- Ascorbic Acid Impurity 43 (CAS 20229-76-9)
- Felbinac Trometamol Impurity 5 (CAS CATO-C4X-33685)
- n-(4-Chlorophenethyl)-2,2-dimethylpropan-1-amine (CAS 1225682-81-4)
- Methyl 5-[3-(methoxycarbonyl)phenyl]pyridine-3-carboxylate (CAS 1820665-97-1)
- 4-(4,6-Diamino-1,3,5-triazin-2-yl)phenol (CAS 25171-57-7)
- Etoricoxib Impurity 31 (CAS 93629-02-8)
- 1-(5-Bromopyridin-2-yl)piperidin-4-one (CAS 1016837-36-7)
- ethyl 4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carboxylate (CAS 916420-29-6)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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