4,5-Dichloro-6-nitro-2,3-dihydropyridazin-3-one CAS 13645-43-7
| CAS No. | 13645-43-7 |
| Molecular Formula | C4HCl2N3O3 |
| Molecular Weight | 209.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4,5-Dichloro-6-nitro-2,3-dihydropyridazin-3-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.
CATO supplies 4,5-Dichloro-6-nitro-2,3-dihydropyridazin-3-one (CAS 13645-43-7), a certified reference material (molecular formula C4HCl2N3O3, MW 209.98 g/mol) for analytical method development and quality control.
Based on its molecular formula C4HCl2N3O3, 4,5-Dichloro-6-nitro-2,3-dihydropyridazin-3-one contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.98 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4HCl2N3O3 |
| Molecular Weight | 209.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichloro Standards
- 1,2-Dichloro-3-fluoro-4-nitrobenzene (CAS 100465-04-1)
- 2,6-Dichloro-4-fluoronicotinic acid (CAS 1253789-51-3)
- 1,2-Dichloro-4-fluoro-3-nitrobenzene (CAS 1360438-72-7)
- 2,6-Dichloro-3-fluoroisonicotinic acid (CAS 149468-00-8)
- 4,6-Dichloro-5-fluoronicotinic Acid (CAS 154012-18-7)
- 1,5-Dichloro-3-fluoro-2-nitrobenzene (CAS 180134-19-4)
- 1,3-Dichloro-5-fluoro-2-nitrobenzene (CAS 180134-21-8)
- 1,2-Dichloro-5-fluoro-3-nitrobenzene (CAS 1806280-44-3)
Recommended Standards
- 4-Iodo-1H-pyrazol-1-ol (CAS 87844-46-0)
- 5-iodo-2-methyl-tetrazole (CAS 402717-52-6)
- 2-Iodo-5-methyl-[1,3,4]oxadiazole (CAS 1592334-67-2)
- 33452-18-5 5-Iodo-1-methyl-1H-tetrazole DTXSID20557682 (CAS 33452-18-5)
- 1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)pyridin-4(1H)-one (CAS 866136-13-2)
- (R)-3-(Furan-2-yl)piperazin-2-one (CAS 1240590-60-6)
- (S)-6-oxa-2-azaspiro[3.4]Octan-8-amine (CAS 2306252-29-7)
- (5-Nitro-1H-imidazol-4-yl)(piperidin-1-yl)methanone (CAS 90521-89-4)
- 2-Carboxy-3-(4-chlorobenzoyl)butanoicacid (CAS 147819-14-5)
- 1-(6-Bromopyridin-2-yl)azetidine-3-carboxylic acid (CAS 1289386-69-1)
- 5-Cyano-3-methyl-N-((((4-methylbenzyl)oxy)imino)methyl)-4-phenylthiophene-2-carboxamide (CAS 343372-49-6)
- 1-(4-(Pyridin-2-yl)phenyl)ethan-1-one (CAS 173681-56-6)
- tert-Butyl (S)-(2-cyano-1-phenylethyl)carbamate (CAS 141625-50-5)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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