Prostaglandin Impurity 31 CAS 1186001-41-1
| CAS No. | 1186001-41-1 |
| Molecular Formula | C25H38N2O2 |
| Molecular Weight | 398.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Prostaglandin Impurity 31 (CAS 1186001-41-1), a pharmacopoeial impurity reference standard (molecular formula C25H38N2O2, MW 398.58 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C25H38N2O2, Prostaglandin Impurity 31 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 398.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C25H38N2O2 |
| Molecular Weight | 398.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Related Prostaglandin Standards
- 8-iso Prostaglandin F2α Ethanolamide (CAS 353787-70-9)
- Prostaglandin E1 Ethanolamide (CAS 210976-81-1)
- Prostaglandin Impurity 25 (CAS CATO-C4X-199625)
- Prostaglandin Impurity 24 (CAS CATO-C4X-199624)
- Prostaglandin G1 (CAS 52162-11-5)
- Prostaglandin Impurity 30 (CAS CATO-C4X-199630)
- Prostaglandin G2 (CAS 51982-36-6)
- Prostaglandin Impurity 28 (CAS 67786-53-2)
Recommended Standards
- Finasteride Impurity 26 (CAS 133216-45-2)
- Bempedoic Acid Impurity 13 (CAS 738606-43-4)
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- Spiro[cyclobutane-1,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-one (CAS 1372860-57-5)
- 2,5-Dioxopyrrolidin-1-yl 3-aminobenzoate (CAS 132445-63-7)
- 1-(4-Fluoro-2-methylphenyl)-3-methyl-1H-1,2,4-triazol-5-amine (CAS 1341439-39-1)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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