3,5-Diphenyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one CAS 90330-87-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90330-87-3 |
| Molecular Formula | C17H12N4O |
| Molecular Weight | 288.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Diphenyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one (CAS 90330-87-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H12N4O. Molecular weight: 288.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H12N4O |
| Molecular Weight | 288.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1982 |
| Nitrogen Atoms | 4 |
Related Diphenyl Standards
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- 2-(1,3-Diphenyl-1H-pyrazol-4-yl)-1,3,4-oxadiazole (CAS 917947-69-4)
- 2,5-Diphenyl-7H-pyrazolo[5,1-b][1,3]oxazin-7-one (CAS 919533-30-5)
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- 3,6-Diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (CAS 54660-00-3)
- 3,7-Diphenyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one (CAS 62538-45-8)
Recommended Standards
- 3,5-Bis(2-oxopyrrolidin-1-yl)benzoic acid (CAS 537657-84-4)
- 3',4',5'-Trimethoxy-[1,1'-biphenyl]-4-carboxylic acid (CAS 203722-36-5)
- 3-(Benzofuran-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 372098-13-0)
- 2-(2-((tert-Butoxycarbonyl)amino)-6-oxo-1,6-dihydropyrimidin-5-yl)acetic acid (CAS 221362-48-7)
- 4-((4-Bromobenzylidene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 613249-70-0)
- 2-(Cyanomethyl)-3-(difluoromethyl)-6-fluoroisonicotinonitrile (CAS 1805352-37-7)
- Diphenyl[4-(4-Fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonyl)amino-pyrimidin-5-yl-methyl]phosphine Oxide-d6 (CAS 1185122-39-7)
- N,N-Bis(2-chloroethyl)aniline hydrochloride (CAS 6150-64-7)
- 4-(Thiophen-2-yl)-3-(trifluoromethyl)aniline (CAS 926238-47-3)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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