Cholic Acid Impurity 18 CAS 517-33-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 517-33-9 |
| Molecular Formula | C24H36O5 |
| Molecular Weight | 404.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cholic Acid Impurity 18 (CAS 517-33-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C24H36O5. Molecular weight: 404.54 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C24H36O5 |
| Molecular Weight | 404.54 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Cholic Standards
- Cholic Acid Impurity 13 (CAS 2304-92-9)
- Cholic Aicd Impurity 17 (CAS 2304-91-8)
- Cholic Acid Impurity 27 (CAS CATO-C4X-116027)
- Cholic Acid Impurity 28 (CAS CATO-C4X-116028)
- Cholic Acid Impurity 52 (CAS 68170-81-0)
- Cholic Acid impurity 75 (CAS 2862-62-6)
- Cholic Acid Impurity 19 (CAS 2304-89-4)
- Cholic Acid Impurity 78 (CAS 79732-73-3)
Recommended Standards
- Simvastatin EP Impurity E (CAS 75330-75-5)
- Simvastatin EP Impurity F (CAS 79952-44-6)
- Oxazole, 2,2′-[(1S)-6,6′-dimethyl[1,1′-biphenyl]-2,2′-diyl]bis[4,5-dihydro-4-(1-methylethyl)-, (4S,4′S)- (CAS 209003-59-8)
- Clarithromycin Impurity 35 (CAS CATO-C4X-100235)
- Posaconazole Impurity 167 (CAS CATO-C4X-1208167)
- 5-Phenyl-4h-1,2,4-triazol-3-amine (CAS 4922-98-9)
- [1,1'-Biphenyl]-2-ylglycine (CAS 39950-18-0)
- 2-((5-Bromopyrimidin-2-yl)oxy)acetic acid (CAS 270912-79-3)
- Mesityl Oxide Epoxide (CAS 142532-81-8)
- Semaglutide impurity 40 (CAS CATO-C4X-222640)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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