1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-5-[4-(methylsulfanyl)phenyl]-4,5-dihydro-1H-pyrazole CAS 303091-20-5
| CAS No. | 303091-20-5 |
| Molecular Formula | C27H30N2OS |
| Molecular Weight | 430.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-5-[4-(methylsulfanyl)phenyl]-4,5-dihydro-1H-pyrazole.
1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-5-[4-(methylsulfanyl)phenyl]-4,5-dihydro-1H-pyrazole (CAS 303091-20-5), molecular formula C27H30N2OS and molecular weight 430.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C27H30N2OS, 1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-5-[4-(methylsulfanyl)phenyl]-4,5-dihydro-1H-pyrazole 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 430.60 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.
As a certified reference material (CRM), 1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-5-[4-(methylsulfanyl)phenyl]-4,5-dihydro-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C27H30N2OS |
| Molecular Weight | 430.60 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related tert Standards
- 1,4-Bis[2-(4-butylphenyl)ethynyl]-2-cyclopropylbenzene (CAS 1282582-89-1)
- N-(4-Butylphenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 573950-40-0)
- 4-(4-tert-Butylphenyl)-2-[4-(3-chlorophenyl)piperazin-1-yl]-4-oxobutanoic acid (CAS 301194-14-9)
- 4-Butylphenyl ((1R,2S,5R)-2-isopropyl-5-methylcyclohexyl) phenylphosphonate (CAS 1463875-94-6)
- 3-{1-[(4-tert-butylphenyl)methyl]-5,6-dichloro-1H-1,3-benzodiazol-2-yl}-1,2-dihydropyridin-2-one (CAS 338412-02-5)
- 5-{[(4-tert-butylphenyl)methyl]sulfanyl}-2-ethyl-8,9-dimethoxy-[1,2,4]triazolo[1,5-c]quinazoline (CAS 860610-87-3)
- 4-(4-Butylphenyl)-5-[1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazol-5-yl]-4H-1,2,4-triazole-3-thiol (CAS 865659-87-6)
- 17-[(4-tert-Butylphenyl)methoxy]-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione (CAS 478029-51-5)
Recommended Standards
- (E)-3-(4-(4-(Dibutylamino)styryl)pyridin-1-ium-1-yl)propane-1-sulfonate (CAS 90133-78-1)
- 7-(1,1-Dimethylpropyl)-3-[2-(4-fluorophenyl)ethyl]-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 554438-86-7)
- Dicyclohexyl[2-(2,4,6-trimethylphenyl)-1H-inden-3-yl]phosphine (CAS 1373165-93-5)
- Hexadecanedioic acid mono-L-carnitine ester chloride (CAS 42150-38-9)
- 3-[3-(3-bromophenyl)-4-formyl-1h-pyrazol-1-yl]propanenitrile (CAS 879362-27-3)
- N-[4-(2,5-Dimethyl-1H-pyrrol-1-yl)phenyl]benzenesulfonamide (CAS 866156-45-8)
- 2-chloro-N-[(4-methoxyphenyl)(phenyl)methyl]acetamide (CAS 61956-04-5)
- (S)-Tolvaptan (CAS 331947-44-5)
- 4-Isobutyl-3-(pentan-2-yl)-1h-pyrazol-5-amine (CAS 1311492-27-9)
- (2-(P-tolyl)tetrahydro-2H-pyran-3-yl)methanamine (CAS 1343690-33-4)
- 2-Methyltetracene (CAS 74845-45-7)
- Diisopropylamine HCl (CAS 819-79-4)
- N,N,N-Tripropyloctan-1-aminium bromide (CAS 61175-79-9)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com