7-Methyl-3-propyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one CAS 62538-40-3
| CAS No. | 62538-40-3 |
| Molecular Formula | C9H12N4O |
| Molecular Weight | 192.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-Methyl-3-propyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one (CAS 62538-40-3), molecular formula C9H12N4O and molecular weight 192.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7-Methyl-3-propyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one (C9H12N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 7-Methyl-3-propyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one 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 | C9H12N4O |
| Molecular Weight | 192.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 7-Butyl-1H-purin-6(7H)-one (CAS 7495-67-2)
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- 6-Ethyl-2,5-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 51596-07-7)
- 9-(1-Ethoxyethyl)-9H-purine (CAS 78105-09-6)
- 2-[(furan-2-yl)formamido]butanoic acid (CAS 436855-65-1)
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- 5-(4-Bromophenyl)-1-methylpyrazole (CAS 73387-52-7)
- 4-Azido-2,3,5,6-tetrafluorobenzoic Acid (CAS 122590-77-6)
- 3-(1-Ethyl-5-methyl-1H-pyrazol-4-yl)-1-(1H-pyrrol-2-yl)prop-2-en-1-one (CAS 492426-52-5)
- 7-Chloro-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridine (CAS 437384-17-3)
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- 3-(3,4-Difluorophenyl)-3-hydroxypropanenitrile (CAS 1535976-23-8)
- Methyl 2-((5,8-difluoroquinolin-4-yl)oxy)acetate (CAS 1315374-59-4)
- Neuropeptide S (rat) (CAS 412938-75-1)
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