Chenodeoxycholic acid methyl CAS 3057-04-3
| CAS No. | 3057-04-3 |
| Molecular Formula | C25H42O4 |
| Molecular Weight | 406.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Chenodeoxycholic acid methyl (CAS 3057-04-3), molecular formula C25H42O4 and molecular weight 406.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, Chenodeoxycholic acid methyl is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 406.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C25H42O4 |
| Molecular Weight | 406.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Chenodeoxycholic Standards
- Chenodeoxycholic Acid EP Impurity H (CAS 2458-08-4)
- Chenodeoxycholic Acid Impurity 4 (CAS CATO-C4X-15834)
- Chenodeoxycholic Acid-d5 (CAS 52840-12-7)
- Chenodeoxycholic-2,2,4,4-d4 Acid (CAS 99102-69-9)
- Chenodeoxycholic Acid-24- (CAS 52918-92-0)
- Chenodeoxycholic Acid EP Impurity A (CAS 128-13-2)
- Chenodeoxycholic Acid Impurity 2 (CAS CATO-C4X-15832)
- Chenodeoxycholic Acid Impurity 5 (CAS 59132-31-9)
Recommended Standards
- Cholic Acid Impurity 61 (CAS 28050-36-4)
- Ursodeoxycholic Acid EP Impurity G (CAS 10538-55-3)
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- Oseltamivir Impurity 146 (CAS CATO-C4X-1720146)
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- 5-(4-Chlorophenyl)-2-(methylthio)pyrimidin-4-amine (CAS 1260910-16-4)
- N-((2S,3R,4R,5S,6R)-6-(Hydroxymethyl)-2-((4-methyl-2-oxo-2H-chromen-7-yl)oxy)-5-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4-(((2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-3-yl)acetamide (CAS 359436-57-0)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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