1H-Imidazo[4,5-d]pyridazin-7(6H)-one CAS 28682-94-2
| CAS No. | 28682-94-2 |
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1H-Imidazo[4,5-d]pyridazin-7(6H)-one (CAS 28682-94-2), a certified reference material (molecular formula C5H4N4O, MW 136.11 g/mol) for analytical method development and quality control.
The molecular framework of 1H-Imidazo[4,5-d]pyridazin-7(6H)-one (C5H4N4O) is characterized by 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.
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.
CATO manufactures 1H-Imidazo[4,5-d]pyridazin-7(6H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 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 |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 4 |
Related H Standards
- Imidazo[1,2-a][1,3,5]triazin-4(1H)-one (CAS 138840-83-2)
- Imidazo[1,5-a][1,3,5]triazin-4(1H)-one (CAS 145837-60-1)
- 1H-Imidazo[4,5-b]pyrazin-5-ol (CAS 856345-70-5)
- Imidazo[1,2-b][1,2,4]triazin-2(1H)-one (CAS 62096-96-2)
- Imidazo[1,2-d][1,2,4]triazin-2-ol (CAS 689298-00-8)
- Imidazo[1,2-d][1,2,4]triazin-2-one (CAS 256408-48-7)
- Imidazo[1,5-a][1,3,5]triazin-4-amine (CAS 145837-65-6)
- 1H-Imidazo[4,5-d]pyridazin-2-amine (CAS 160568-14-9)
Recommended Standards
- 1H-Purin-6(5H)-one (CAS 28634-91-5)
- 1H,7H-[1,2,4]triazolo[1,5-a]pyrimidin-7-one (CAS 31592-08-2)
- 1H-Purin-6-ol (CAS 95121-06-5)
- 1,5-Dihydro-pyrazolo[3,4-d]pyrimidin-6-one (CAS 40925-39-1)
- Isopentyl (4-(dimethylamino)phenyl)(hydroxy(pyridin-3-yl)methyl)phosphinate (CAS 503432-49-3)
- Ethyl 2,6-dichloro-9H-purine-8-carboxylate (CAS 2089972-52-9)
- 2-(1-(Aminomethyl)cyclohexyl)acetic acid sulfate (CAS 585540-04-1)
- n-(1-(Thiazol-2-yl)ethyl)butan-1-amine (CAS 1341587-72-1)
- 5-Methyl-1H-pyrimidin-2-one;hydrochloride (CAS 17758-06-4)
- (E)-4-((5,6-Dihydro-[2,3'-bipyridin]-3(4H)-ylidene)methyl)-3-methoxyphenol dihydrochloride (CAS 185247-71-6)
- 4-(1-Ethyl-1h-1,2,4-triazol-5-yl)-1-methyl-1h-pyrazol-5-amine (CAS 1248384-83-9)
- Methyl (2-(1-acetyl-1H-indol-3-yl)ethyl)carbamate (CAS 88368-97-2)
- 1-(3-Methoxy-1,2-thiazol-4-yl)ethan-1-one (CAS 1779856-07-3)
- Dulaglutide (CAS 923950-08-7)
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