Pregnenolone Impurity 33 CAS CATO-C4X-150233
| CAS No. | CATO-C4X-150233 |
| Molecular Formula | C31H46N2O5S |
| Molecular Weight | 558.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pregnenolone Impurity 33 (C31H46N2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Pregnenolone Impurity 33 (CAS CATO-C4X-150233, C31H46N2O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 Pregnenolone Impurity 33 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 | C31H46N2O5S |
| Molecular Weight | 558.77 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pregnenolone Standards
- Pregnenolone sulfate (CAS 1247-64-9)
- Pregnenolone Isobutyrate (CAS CATO-C4X-21916)
- Pregnenolone-3-isobutyrate (CAS CATO-C4X-21917)
- Pregnenolone Impurity 10 (CAS 1173-11-1)
- Pregnenolone 17α-Acetoxy (CAS 2381-45-5)
- Pregnenolone Impurity 12 (CAS 66880-01-1)
- Pregnenolone Impurity 14 (CAS 911452-26-1)
- Pregnenolone Acetate (CAS 1778-02-5)
Recommended Standards
- Cholic Acid Impurity 60 (CAS 1632118-78-5)
- (R)-3,3'-Bis[4-tert-butylphenyl]-5,5',6,6',7,7',8,8'-octahydro-[1,1'-binaphthalene]-2,2'-diol (CAS 1205537-80-9)
- Dronedarone Impurity 17 (CAS CATO-C4X-109217)
- Cholesteryl coumarin-3-carboxylate (CAS 196091-78-8)
- Vericiguat Impurity 62 (CAS CATO-C4X-289662)
- Topiramate Impurity 33 (CAS CATO-C4X-176833)
- Ibuprofen EP Impurity J (CAS 65813-55-0)
- 7-bromo-6,8-difluoro-1H-quinazoline-2,4-dione (CAS 2248301-65-5)
- N-Desethyl Oxybutynin Hydrochloride (CAS 81039-77-2)
- 2,3-Dimethylbutane-2,3-diol Hydrate (CAS 13311-54-1)
- N-Formyl-di-(1-isopropylphenyl)amine (N-Formyl DPIA) (CAS 71685-26-2)
- 2-((4-Chlorobenzyl)thio)-4H-pyrido[1,2-a][1,3,5]triazin-4-one (CAS 303145-12-2)
- 1-chloro-N-(4-chlorophenyl)methanecarbonimidoyl chloride (CAS 2771-67-7)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
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