4,5-Dichloro-3(2H)-pyridazinone
- CAS No.
- 932-22-9
- Chemical Name:
- 4,5-Dichloro-3(2H)-pyridazinone
- Synonyms
- 4,5-DICHLOROPYRIDAZIN-3(2H)-ONE;4,5-DICHLORO-3-HYDROXYPYRIDAZINE;4,5-DICHLORO-2H-PYRIDAZIN-3-ONE;NSC 17182;NSC 16127;NSC 240022;AKOS B029197;AURORA KA-447;TIMTEC-BB SBB003910;OTAVA-BB BB0128630031
- CBNumber:
- CB1308262
- Molecular Formula:
- C4H2Cl2N2O
- Molecular Weight:
- 164.98
- MDL Number:
- MFCD00051504
- MOL File:
- 932-22-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 4,5-Dichloro-3-hydroxypyridazine 98% | 303097 | 25g | $59 |
| 4,5-Dichloro-3(2H)-pyridazinone >98.0%(GC)(T) | D2768 | 25g | $57 |
| 4,5-Dichloro-3(2H)-pyridazinone >98.0%(GC)(T) | D2768 | 100g | $164 |
| 4,5-Dichloro-6-pyridazone | 009263 | 100mg | $403 |
| 4,5-DICHLORO-2H-PYRIDAZIN-3-ONE 97% | 60364 | 25G | $10 |
| More product size | |||
| Melting point | 204-206 °C(lit.) |
|---|---|
| Density | 1.76±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| pka | 8.39±0.60(Predicted) |
| form | Crystalline Powder |
| color | White to yellow |
| BRN | 120959 |
| InChI | InChI=1S/C4H2Cl2N2O/c5-2-1-7-8-4(9)3(2)6/h1H,(H,8,9) |
| InChIKey | VJWXIRQLLGYIDI-UHFFFAOYSA-N |
| SMILES | C1(=O)NN=CC(Cl)=C1Cl |
| CAS DataBase Reference | 932-22-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 8FQ8PU4SSS |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H302-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 36/37/38-22 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UR6182000 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29349990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| NFPA 704 |
|
4,5-Dichloro-3(2H)-pyridazinone price More Price(95)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 303097 | 4,5-Dichloro-3-hydroxypyridazine 98% | 932-22-9 | 25g | $59 | 2023-06-20 | Buy |
| TCI Chemical | D2768 | 4,5-Dichloro-3(2H)-pyridazinone >98.0%(GC)(T) | 932-22-9 | 25g | $57 | 2026-04-30 | Buy |
| TCI Chemical | D2768 | 4,5-Dichloro-3(2H)-pyridazinone >98.0%(GC)(T) | 932-22-9 | 100g | $164 | 2026-04-30 | Buy |
| Usbiological | 009263 | 4,5-Dichloro-6-pyridazone | 932-22-9 | 100mg | $403 | 2026-06-03 | Buy |
| AstaTech | 60364 | 4,5-DICHLORO-2H-PYRIDAZIN-3-ONE 97% | 932-22-9 | 25G | $10 | 2026-04-30 | Buy |
4,5-Dichloro-3(2H)-pyridazinone Chemical Properties,Uses,Production
Chemical Properties
Beige Crystalline Solid
Uses
4,5-Dichloro-3(2H)-pyridazinone is used as a new labelled substituted pyridazinone with tuberculostatic action.
Synthesis Reference(s)
Journal of Heterocyclic Chemistry, 28, p. 385, 1991 DOI: 10.1002/jhet.5570280234
General Description
The solid phase FT-IR and FT-Raman spectra of 4,5-dichloro-3-hydroxypyridazine was studied.
Hazard
4,5-Dichloro-3(2H)-pyridazinone causes skin irritation and serious eye irritation, it may cause respiratory irritation.
Synthesis
Hydrazine sulfate (305.7 g, 2.35 mol) was added to a solution of 3,4-dichloro-5-hydroxy-5H-furan-2-one (419 g, 2.48 mol) and sodium acetate (212 g, 2.58 mol) in water (600 mL). The mixture was stirred under reflux for 4 h. After filtration and evaporation, the residual solid was recrystallized from ethanol to provide 4,5-dichloropyridazin-3(2H)-one (216 g, 67%) as an off-white solid.
4,5-Dichloro-3(2H)-pyridazinone Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hangzhou Lucky Biology Co., Ltd | +8618105713381 | lucky@lkbiology.com | China | 174 | 58 |
| Shijiazhuang Leon Chemicals Co.,Ltd | +8615203111882 | leonchem@outlook.com | China | 22 | 58 |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-15225627621 +86-13213167925 | jiuyitime@fdachem.com | China | 16511 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| Nanjing jinheyou Trading Co., Ltd. | 15705188088 | admin@jheyou.com | CHINA | 1268 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
View Lastest Price from 4,5-Dichloro-3(2H)-pyridazinone manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-07-02 | 4,5-Dichloro-3(2H)-pyridazinone
932-22-9
|
$2.00-6.00 | 1kg | 99% | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
 |
2022-02-23 | 4,5-Dichloro-3(2H)-pyridazinone
932-22-9
|
1KG | 97.2% | 100 tons | Honest Joy Holdings Limited
|
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2021-08-12 | 4,5-Dichloro-3(2H)-pyridazinone
932-22-9
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd |
-
- 4,5-Dichloro-3(2H)-pyridazinone
932-22-9
- $2.00-6.00
- 99%
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-
- 4,5-Dichloro-3(2H)-pyridazinone
932-22-9
- $0.00
- 97.2%
- Honest Joy Holdings Limited
-
- 4,5-Dichloro-3(2H)-pyridazinone
932-22-9
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
