Deoxycholic acid Impurity 38 CAS CATO-C4X-335938
| CAS No. | CATO-C4X-335938 |
| Molecular Formula | C27H42O5 |
| Molecular Weight | 446.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Deoxycholic acid Impurity 38 is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Deoxycholic acid Impurity 38 (CAS CATO-C4X-335938) is a certified pharmaceutical impurity reference standard with the molecular formula C27H42O5 and a molecular weight of 446.62 g/mol.
The molecular framework of Deoxycholic acid Impurity 38 (C27H42O5) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C27H42O5 |
| Molecular Weight | 446.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 99.50% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Deoxycholic Standards
- Deoxycholic acid Impurity 11 (CAS CATO-C4X-335911)
- Deoxycholic acid Impurity 23 (CAS 21066-15-9)
- Deoxycholic acid Impurity 24 (CAS 73505-50-7)
- Deoxycholic acid C16 (CAS 1311972-97-0)
- Deoxycholic acid Impurity 15 (CAS 1093351-39-3)
- Deoxycholic acid Impurity 16 (CAS CATO-C4X-335916)
- Deoxycholic acid Impurity 28 (CAS 2309-12-8)
- Deoxycholic acid Impurity 41 (CAS CATO-C4X-335941)
Recommended Standards
- 3-Ethyl-5-(1-phenyl-4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylidene)-2-thioxothiazolidin-4-one (CAS 14664-55-2)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((3-cyclopentyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)propanamide (CAS 949848-67-3)
- Thioproperazine (CAS 316-81-4)
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- Fenoterol EP Impurity A (Enantiomer Mixture) (CAS 107878-38-6)
- Dexamethasone Impurity N1 (CAS 37926-77-5)
- Esmolol Impurity N1 (CAS 50666-68-7)
- 2-(Naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline (CAS 923972-84-3)
- 4-Benzyl-1,4-diazabicyclo[3.3.1]nonan-2-one (CAS 1935504-35-0)
- N'-(2-oxoindolin-3-ylidene)benzohydrazide (CAS 55711-62-1)
- Methyl 2-(8-methoxy-4-oxoquinolin-1(4H)-yl)acetate (CAS 1170391-76-0)
- 7H-Cyclopenta[c]pyridin-7-one, 5,6-dihydro-, hydrochloride (CAS 1303968-42-4)
- 2-Ethoxy-N-isopentylaniline (CAS 1019550-80-1)
- Palmitoyl Tripeptide-1 TFA salt (CAS 2803375-47-3)
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