Pyrazolo[1,5-b]pyridazine CAS 35731-27-2
| CAS No. | 35731-27-2 |
| Molecular Formula | C6H5N3 |
| Molecular Weight | 119.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyrazolo[1,5-b]pyridazine (CAS 35731-27-2), a certified reference material (molecular formula C6H5N3, MW 119.12 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H5N3, Pyrazolo[1,5-b]pyridazine contains a nitrile group, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 119.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H5N3 |
| Molecular Weight | 119.12 g/mol |
| 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.) | 1967 |
| Nitrogen Atoms | 3 |
Related Pyrazolo Standards
- 2H-Pyrazolo[3,4-b]pyridine (CAS 271-71-6)
- 2H-Pyrazolo[4,3-b]pyridine (CAS 272-51-5)
- 3h-Pyrazolo[3,4-c]pyridine (CAS 271-46-5)
- 3H-Pyrazolo[4,3-b]pyridine (CAS 40865-12-1)
- 3H-Pyrazolo[4,3-c]pyridine (CAS 271-51-2)
- 5H-Pyrazolo[4,3-c]pyridine (CAS 271-49-8)
- pyrazolo[1,5-a]pyrazine (CAS 24973-85-1)
- Pyrazolo[1,5-c]pyrimidine (CAS 274-57-7)
Recommended Standards
- Methyl D-serinate (CAS 24184-43-8)
- Pyrazolo[3,4-b]pyridine (CAS 271-73-8)
- Methyl 2-(aminooxy)propanoate (CAS 91666-48-7)
- triazolo[1,5-a]pyridine (CAS 274-59-9)
- 3,5-Di-tert-butylcyclohexane-1,2-dione (CAS 329328-77-0)
- 4-Bromo-2-fluoro-6-methoxypyridine (CAS 1227591-12-9)
- 4-Chloro-N,N-diethyl-1-butanamine Hydrochloride (CAS 108130-45-6)
- (4-Bromo-5-(difluoromethyl)-6-methoxypyridin-2-yl)methanol (CAS 1804460-69-2)
- N-(4-Fluorophenyl)pyridin-2-amine (CAS 72358-70-4)
- 1-(4-Bromo-2-chloro-3-fluorophenyl)ethan-1-one (CAS 1898158-31-0)
- 4-(3-((3-Fluorophenoxy)methyl)-1H-1,2,4-triazol-5-yl)-2-methoxyphenol (CAS 1416345-22-6)
- 5(6)-ROX NHS Ester (CAS 114646-32-9)
- Cytidine 5'-triphosphate disodium salt (CAS 36051-68-0)
- Peptide 74 (H-8545.0500) (CAS 132116-39-3)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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