2-[3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-5-[(phenylsulfanyl)methyl]pyrazolo[1,5-a]pyrimidin-7-ol CAS 866136-71-2
| CAS No. | 866136-71-2 |
| Molecular Formula | C23H20N4OS2 |
| Molecular Weight | 432.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-[3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-5-[(phenylsulfanyl)methyl]pyrazolo[1,5-a]pyrimidin-7-ol is closely related to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-[3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-5-[(phenylsulfanyl)methyl]pyrazolo[1,5-a]pyrimidin-7-ol (CAS 866136-71-2), molecular formula C23H20N4OS2 and molecular weight 432.56 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H20N4OS2, 2-[3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-5-[(phenylsulfanyl)methyl]pyrazolo[1,5-a]pyrimidin-7-ol contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 432.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C23H20N4OS2 |
| Molecular Weight | 432.56 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Dimethyl Standards
- 2,2-Dimethyl-3,3-diphenyl-4,7,10,13-tetraoxa-3-silapentadecan-15-ol (CAS 198210-37-6)
- (4E)-4-({3-[3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-1H-pyrazol-5-yl}imino)-6-fluoro-4H-chromene-3-carbaldehyde (CAS 1030385-90-0)
- Dimethyl 3-(4-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)cyclopent-3-ene-1,1-dicarboxylate (CAS 159429-83-1)
- Ethyl 3,5-dimethyl-1-(5-(3-(trifluoromethyl)benzamido)pyridin-2-yl)-1H-pyrazole-4-carboxylate (CAS 477710-49-9)
- 1-((1'-Benzyl-4',5'-dimethyl-1'H-[1,2'-bipyrrol]-3'-yl)methyl)-3-(4-chlorophenyl)urea (CAS 478077-26-8)
- Dimethyl 2-(3-bromo-5-formyl-4-((2-methoxyethoxy)methoxy)phenyl)succinate (CAS 878673-54-2)
- Dimethyl 5-((2-cyano-2-(4-(p-tolyl)thiazol-2-yl)vinyl)amino)isophthalate (CAS 799776-39-9)
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Recommended Standards
- 1-Methyl-4-(4-(4-(3-(piperidin-4-ylmethoxy)pyridin-4-yl)-1H-pyrazol-1-yl)phenyl)piperazine (CAS 1922153-17-0)
- 2-Phenyl-4-(p-tolylthio)-5-tosylpyrimidine (CAS 478080-81-8)
- tert-Butyl 4-(3-(1-(tert-butoxycarbonyl)pyrrolidin-2-yl)pyridin-2-yl)piperazine-1-carboxylate (CAS 1352493-25-4)
- 5,5'-Bis(allylthio)-4,4'-diphenyl-4H,4'H-3,3'-bi(1,2,4-triazole) (CAS 63776-97-6)
- (3-Bromo-6-chloro-2-fluorophenyl)(4-methylpiperazin-1-yl)methanone (CAS 2504202-64-4)
- 1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate (CAS 139722-91-1)
- 1-Chloro-3-(methoxymethoxy)benzene (CAS 91105-99-6)
- 1,3-Dichloro-5-ethyl-5-methylimidazolidine-2,4-dione (CAS 89415-87-2)
- N-(2-Nitrophenyl)-2-phenylquinoline-4-carboxamide (CAS 88067-67-8)
- 6-Fluoro-2-(tributylstannyl)pyridine (CAS 1025744-38-0)
- Sulfo-SNPB (CAS 1193111-37-3)
- 2,2'-((4,6-Dichloro-1,3,5-triazin-2-yl)azanediyl)diacetonitrile (CAS 53790-51-5)
- 1,2-Distearoyl-3-oleoyl-rac-glycerol (CAS 2190-29-6)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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