Pregnenolone Impurity 10 CAS 1173-11-1
| CAS No. | 1173-11-1 |
| Molecular Formula | C24H34O4 |
| Molecular Weight | 386.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pregnenolone Impurity 10 (C24H34O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a process- or degradation-related impurity, Pregnenolone Impurity 10 (CAS 1173-11-1, C24H34O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Pregnenolone Impurity 10 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H34O4 |
| Molecular Weight | 386.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Pregnenolone Standards
- Pregnenolone Isobutyrate (CAS CATO-C4X-21916)
- Pregnenolone-3-isobutyrate (CAS CATO-C4X-21917)
- Pregnenolone sulfate (CAS 1247-64-9)
- 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)
- Pregnenolone Impurity 9 (CAS 66905-18-8)
Recommended Standards
- Bempedoic Acid Impurity 6 (CAS 3023294-04-1)
- Clascoterone Impurity 12 (CAS 2693-85-8)
- Lovastatin EP Impurity C (CAS 109273-98-5)
- Algestone Acetonide (CAS 4968-09-6)
- Betamethasone Impurity 80 (CAS 25092-10-8)
- Orniplabin Preparation and Separation of Impurity 1 (CAS CATO-CPS-2605001)
- Bromfenac Impurity 22 (CAS 61112-01-4)
- 2-(5-(3-Ethoxy-4-propoxybenzylidene)-6-oxo-5,6-dihydrothiazolo[3,2-b][1,2,4]triazol-2-yl)phenyl acetate (CAS 617695-89-3)
- 5-Bromo-3-iodo-1-(phenylsulfonyl)-1H-pyrrolo-[2,3-b]pyridine-2-carboxylic acid (CAS 1299607-75-2)
- (5-(Methoxymethyl)-4-methyl-4H-1,2,4-triazol-3-yl)methanol (CAS 1546458-31-4)
- Osimertinib Impurity 40 (CAS CATO-C4X-204540)
- 2-(5-Formylthiophen-2-yl)benzoic acid (CAS 886508-84-5)
- Methyl 4,5-dibromonicotinate (CAS 1803786-19-7)
- Liraglutide Impurity 31 (CAS CATO-C4X-199231)
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