6-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-(3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)-7-(3-nitrophenyl)pyrazolo[1,5-a]pyrimidine CAS 956181-70-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 956181-70-7 |
| Molecular Formula | C27H23N7O2S |
| Molecular Weight | 509.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-(3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)-7-(3-nitrophenyl)pyrazolo[1,5-a]pyrimidine (CAS 956181-70-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C27H23N7O2S. Molecular weight: 509.58 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C27H23N7O2S |
| Molecular Weight | 509.58 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 6,6'-Dimethyl 5,5'-dibromo-2H,2'H,3H,3'H-[1,1'-biindole]-6,6'-dicarboxylate (CAS 2007910-50-9)
- 9,9-Dimethyl-4,5-bis(di-t-butylphosphino)xanthene 856405-77-1 4,5-BIS(DI-TERT-BUTYLPHOSPHINO)-9,9-DIMETHYLXANTHENE;9,9-DIMETHYL-4,5-BIS(DI-T-BUTYLPHOSPHINO)XANTHENE;9,9-DIMETHYL-4,5-BIS(DI-TERT-BUTYLPHOSPHINO)XANTHENE;T-BU-XANTPHOS SC11340 (CAS 856405-77-1)
- 3-(N-(1,3-Dimethyl-2-oxo-6-(3-propoxyphenoxy)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)sulfamoyl)benzoic acid (CAS 1884199-58-9)
- 11,13-Dimethyl-4-{[(4-methylphenyl)methyl]sulfanyl}-6-[3-(trifluoromethyl)phenoxy]-8-thia-3,5,10-triazatricyclo[7.4.0.0^{2,7}]trideca-1(13),2(7),3,5,9,11-hexaene (CAS 439111-32-7)
- 1,1'-(2,5-Dimethyl-1,4-phenylene)dipyrene (CAS 1036404-84-8)
- Dimethyl 5,5'-((propane-2,2-diylbis(4,1-phenylene))bis(oxy))bis(2,2-dimethylpentanoate) (CAS 111278-01-4)
- 2,2-Dimethyl-4-oxo-3,9,12,15,18-pentaoxa-5-azaicosan-20-yl 4-methylbenzenesulfonate (CAS 2681390-46-3)
- 3-[[5-[2,2-dimethyl-4-(oxetan-3-yl)piperazin-1-yl]-2-pyridyl]amino]-1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (CAS 2696453-81-1)
Recommended Standards
- 2-Ethoxyethyl 7-(3,4-dimethoxyphenyl)-4-(4-fluorophenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 332923-65-6)
- Cefmenoxime Impurity 10 (CAS CATO-C4X-147710)
- 2-Ethoxyethyl 7-(3,4-dimethoxyphenyl)-4-(2-fluorophenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 332924-58-0)
- N-(3,4-Dichlorophenyl)-5-methyl-12-oxo-5H,5aH,6H,7H,8H,9H,10H,12H-azepino[2,1-b]quinazoline-3-carboxamide (CAS 1775347-37-9)
- 2,6,10-Trimethylundecane (CAS 6864-53-5)
- 3-Bromo-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine hydrochloride (CAS 1379370-40-7)
- 8-Methyl-4-oxo-1,2,3,4-tetrahydronaphthalene-2-carboxylic acid (CAS 16035-95-3)
- 2-Methanesulfonyl-N-(propan-2-yl)aniline (CAS 1154733-37-5)
- 4-Fluoro-4-iodobenzophenone (CAS 141763-55-5)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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 13829788188 / jacky.chen@cato-chem.com