Desonide Impurity 9 CAS 117782-94-2
| CAS No. | 117782-94-2 |
| Molecular Formula | C23H30O6 |
| Molecular Weight | 402.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Desonide Impurity 9 (CAS 117782-94-2) is a certified pharmaceutical impurity reference standard with the molecular formula C23H30O6 and a molecular weight of 402.48 g/mol.
Based on its molecular formula C23H30O6, Desonide Impurity 9 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 402.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Desonide Impurity 9 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 | C23H30O6 |
| Molecular Weight | 402.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Desonide Standards
- Desonide Impurity 1(Desonide 9, 11-Epoxide) (CAS 39672-75-8)
- Desonide Impurity N2 (CAS 2672-21-1)
- delta-14-Desonide (CAS 131918-67-7)
- Desonide Impurity 16 (CAS CATO-C4X-130116)
- Desonide Impurity 10 (CAS CATO-C4X-130110)
- Desonide Impurity 17 (CAS CATO-C4X-130117)
- Desonide Impurity 18 (CAS CATO-C4X-130118)
- Desonide Impurity 11 (CAS 25092-32-4)
Recommended Standards
- 82508-33-6 Methyl (2e,4e)-5-[(1r,7s,8s,9r)-7-acetoxy-4,9-dimethyl-11-oxo-10-oxatricyclo[6.3.2.01,7]tridec-3-en-9-yl]-2-methyl-2,4-pentadienoate (CAS 82508-33-6)
- Budesonide EP Impurity B（Mixture of diastereomers） (CAS 1040085-98-0)
- 69381-94-8 X8I39OJF4P Fenprostalene Fenprostalene [USAN:INN:BAN] 4,5-Heptadienoic acid, 7-(3,5-dihydroxy-2-(3-hydroxy-4-phenoxy-1-butenyl)cyclopentyl)-, methyl ester EINECS 273-982-3 Fenprostaleno [INN-Spanish] Fenprostalenum [INN-Latin] Methyl (+-)-7-((1R*,2R*,3R*,5S*)-3,5-dihydroxy-2-((E)-(3R*)-3-hydroxy-4-phenoxy-1-butenyl)cyclopentyl)-4,5-heptadienoate Synchrocept B (Veterinary) Fenprostaleno Fenprostalenum UNII-X8I39OJF4P RS-84043 Synchrocept B Bovilene (CAS 69381-94-8)
- Budesonide Impurity 68 (CAS 74220-43-2)
- Pyronaridine Impurity 12 (CAS CATO-C4X-297812)
- Norfloxacin Impurity 50 (CAS CATO-C4X-146850)
- Urapidil Impurity 65 (CAS 2468009-96-1)
- 6-(4-(Hydroxymethyl)phenyl)naphthalen-2-ol (CAS 1017858-96-6)
- N-((1-(2-Aminoethyl)piperidin-2-yl)methyl)-N-benzylcyclopropanamine (CAS 1353976-25-6)
- 2-Chloro-3-cyclopropoxy-6-methylpyridine (CAS 1243473-43-9)
- 3-Fluorobicyclo[3.2.1]Octan-8-amine (CAS 2168669-08-5)
- Ethyl(4-fluorobenzyl)sulfane (CAS 99224-74-5)
- Methyl 4-(4-chlorophenyl)-1,2-dimethyl-1H-pyrrole-3-carboxylate (CAS 878453-61-3)
- Peptide 435 (CAS CATO-CPTD788435)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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