Deoxycholic acid Impurity 20 CAS 77731-04-5
| CAS No. | 77731-04-5 |
| Molecular Formula | C32H48O6S |
| Molecular Weight | 560.78 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 Deoxycholic acid Impurity 20.
CATO supplies Deoxycholic acid Impurity 20 (CAS 77731-04-5), a pharmacopoeial impurity reference standard (molecular formula C32H48O6S, MW 560.78 g/mol) used for the identification and quantification of trace impurities in APIs.
Deoxycholic acid Impurity 20 (C32H48O6S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).
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 Deoxycholic acid Impurity 20 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 | C32H48O6S |
| Molecular Weight | 560.78 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Sulfur Atoms | 1 |
Related Deoxycholic Standards
- Deoxycholic acid Impurity 26 (CAS 4382-30-3)
- Deoxycholic acid Impurity 4 (CAS CATO-C4X-33594)
- Deoxycholic acid Impurity 5 (CAS CATO-C4X-33595)
- Deoxycholic acid Impurity 25 (CAS 2826251-67-4)
- Deoxycholic acid-L-proline (CAS CATO-C4X-116032)
- Deoxycholic acid Impurity 40 (CAS CATO-C4X-335940)
- Deoxycholic acid Impurity 44 (CAS CATO-C4X-335944)
- Deoxycholic acid C16 (CAS 1311972-97-0)
Recommended Standards
- 5-Chloro-6-iodo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1357387-50-8)
- 4-((5Z,8Z,11Z,13E,15S)-15-Hydroxyicosa-5,8,11,13-tetraen-2-yl)-6H,6'H-[2,2'-bipyran]-3-carbohydrazide (CAS 1217461-45-4)
- Bilastine Impurity 51 (CAS 2767509-03-3)
- 2-(Dodecyloxy)-6-((5-(thiophen-3-yl)pentyl)oxy)anthracene-9,10-dione (CAS 540475-27-2)
- Ibrutinib Impurity 174 (CAS CATO-C4X-1064174)
- Apalutamide Impurity 69 (CAS CATO-C4X-274969)
- Estriol Impurity 18 (CAS CATO-C4X-163718)
- 5-Phenyl-[1,2,4]triazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 1018125-31-9)
- 3-Ethynyl-5-(1-methylpyrrolidin-2-yl)pyridine (CAS 179120-51-5)
- N-(2-((6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)amino)ethyl)-2-phenoxyacetamide (CAS 1396760-52-3)
- Methyl (4-(trifluoromethyl)benzoyl)-L-methioninate (CAS 175202-25-2)
- 4-(Furan-3-yl)-3,5-dimethyl-1H-pyrazole (CAS 2097866-21-0)
- Clerosterol glucuronide (CAS 123621-00-1)
- Peptide 439 (CAS CATO-CPTD788439)
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