7-Chloro-3,3a-dihydro-4H-imidazo[4,5-d]pyridazin-4-one CAS 28683-00-3
| CAS No. | 28683-00-3 |
| Molecular Formula | C5H3ClN4O |
| Molecular Weight | 170.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 7-Chloro-3,3a-dihydro-4H-imidazo[4,5-d]pyridazin-4-one (CAS 28683-00-3), a certified reference material (molecular formula C5H3ClN4O, MW 170.56 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3ClN4O, 7-Chloro-3,3a-dihydro-4H-imidazo[4,5-d]pyridazin-4-one contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 7-Chloro-3,3a-dihydro-4H-imidazo[4,5-d]pyridazin-4-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 | C5H3ClN4O |
| Molecular Weight | 170.56 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 7-Chloro-[1,2,4]triazolo[4,3-a]pyrimidin-3(2H)-one (CAS 1020037-45-9)
- 6-Chloro-1H-purin-2(3H)-one (CAS 1146697-79-1)
- 2-Chloro-6-hydroxypurine (CAS 13368-14-4)
- 6-Chloro-4H,7H-[1,2,4]triazolo[1,5-a]pyrimidin-7-one (CAS 1378849-61-6)
- 6-Chloro-1,2-dihydro-3H-pyrazolo[3,4-d]pyrimidin-3-one (CAS 1384265-61-5)
- 5-Chloro-[1,2,4]triazolo[4,3-a]pyrazin-3(2H)-one (CAS 1421601-17-3)
- 3-Chloro-5-cyano-1H-pyrazole-4-carboxamide (CAS 90801-56-2)
- 5-Chloro-1,3-dihydro-2H-imidazo[4,5-b]pyrazin-2-one (CAS 33386-23-1)
Recommended Standards
- 7-chloro-[1,2,3,4]tetrazolo[1,5-c]pyrimidin-8-amine (CAS 3210-38-6)
- 8-Chloro-7H-purin-6-ol (CAS 22712-29-4)
- 6-Chloro-7H-purin-8(9H)-one (CAS 37527-48-3)
- 3-Chloro-4-fluoro-1H-indazole (CAS 1000340-79-3)
- Propybicyphat (CAS 51486-74-9)
- (S)-Benzyl 3-(2-chloro-N-ethylacetamido)pyrrolidine-1-carboxylate (CAS 1354019-80-9)
- 5-Bromo-7-methoxyisoquinoline (CAS 1824478-07-0)
- tert-Butyl N-[trans-3-(hydroxymethyl)cyclohexyl]carbamate (CAS 920966-17-2)
- 5-Iodo-1-phenyl-1H-tetrazole (CAS 16484-16-5)
- 2-[butyl(methyl)amino]-5-(trifluoromethyl)benzoic acid (CAS 1306606-00-7)
- 7-Methyl-1,3-dioxo-2-phenyl-octahydro-1h-isoindole-4-carboxylic acid (CAS 1221724-77-1)
- (1R,2R)-2-Fluoro-2-phenylcyclopropane-1-carboxylic acid (CAS 309242-49-7)
- 2-(Tert-butyl)-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 1049676-91-6)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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