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3,4-dichloropyridazine

3,4-dichloropyridazine Structure
3,4-dichloropyridazine structure
CAS No.
1677-80-1
Chemical Name:
3,4-dichloropyridazine
Synonyms
3,4-dichloropyridazine;Pyridazine, 3,4-dichloro-;3,4-dichloropyridazine ISO 9001：2015 REACH
CBNumber:
CB52553798
Molecular Formula:
C4H2Cl2N2
Molecular Weight:
148.98
MDL Number:
MFCD20040517
MOL File:
1677-80-1.mol
MSDS File:
SDS
Last updated:2026-05-28 02:51:28
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3,4-dichloropyridazine Properties

Boiling point 125 °C(Press: 3-4 Torr)
Density 1.493±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka -0.89±0.10(Predicted)
Appearance light gray solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H335-H315-H319-H302
Precautionary statements  P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
HS Code  2933998090

3,4-dichloropyridazine price More Price(50)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific OR925203 3,4-Dichloropyridazine 98% 1677-80-1 100mg $147 2026-06-04 Buy
Apolloscientific OR925203 3,4-Dichloropyridazine 98% 1677-80-1 250mg $215 2026-06-04 Buy
Apolloscientific OR925203 3,4-Dichloropyridazine 98% 1677-80-1 1g $534 2026-06-04 Buy
Apolloscientific OR925203 3,4-Dichloropyridazine 98% 1677-80-1 5g $1598 2026-06-04 Buy
Activate Scientific AS37333 3,4-Dichloropyridazine 97% 1677-80-1 250mg $323 2026-06-04 Buy
Product number Packaging Price Buy
OR925203 100mg $147 Buy
OR925203 250mg $215 Buy
OR925203 1g $534 Buy
OR925203 5g $1598 Buy
AS37333 250mg $323 Buy

3,4-dichloropyridazine Chemical Properties, Uses, Production

Synthesis

4-CHLORO-3(2H)-PYRIDAZINONE

1677-79-8

3,4-dichloropyridazine

1677-80-1

General procedure for the synthesis of 3,4-dichloropyridazine from 4-chloro-3-pyridazinone: 4-chloro-3-pyridazinone (25 g, 0.19 mol) was dissolved in acetonitrile (200 ml). Subsequently, phosphoryl chloride (73 g, 0.48 mol) was added to the solution and the reaction mixture was refluxed at 80 °C for 3 hours. After the completion of the reaction was monitored by TLC, the reaction solution was cooled to room temperature and slowly poured into ice water (200 ml). The pH of the mixture was adjusted to 7-8 with sodium bicarbonate and then extracted twice with ethyl acetate (300 ml). The organic phases were combined, washed with saturated brine (400 ml) and dried over anhydrous sodium sulfate. The organic phases were concentrated under reduced pressure and the resulting crude product was purified by column chromatography to give 3,4-dichloropyridazine (18.0 g, 0.12 mol) in about 64% yield.

References

[1] Patent: CN104211644, 2016, B. Location in patent: Paragraph 0042-048

3,4-dichloropyridazine Preparation Products And Raw materials

Raw materials

4-Chloro-3(2H)-pyridazinone trichlorophosphate Acetonitrile

Preparation Products

4-((3-Chloropyridazin-4-yl)oxy)aniline

3,4-dichloropyridazine Suppliers

Global Suppliers ( 74)
Supplier Tel Email Country ProdList Advantage
Yangzhou Haihao Biotechnology Co.,Ltd 0514-15895751441 15895751441 3940147892@qq.com China 3390 58
Nanbu County Chengxin Technology Co., Ltd. 0838-5675166 15883665058 nbcxkj@126.com China 956 55
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Tetranov Biopharm 13526569071 sales@leadmedpharm.com China 7881 64
Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16305 64
Shanghai Sunway Pharmaceutical Technology Co., Ltd 13761987713 hxzheng@sunwaypharm.cn China 8663 57
Shanghai HuiKe Trading Co., Ltd. 15026939015 michael.liu16@yahoo.com China 97 52
Chiba Pharmaceutical Science and technology Co, Ltd. 0531-81313138 13066006660 chibapharm@foxmail.com China 3996 55
Shanghai Jian Chao Chemical Technology Co., Ltd. 150-2103-5486 18017383231 983544897@qq.com China 9335 55
Shanghai Yolne Chemical Co., Ltd. 021-62960152 934678158@qq.com China 9886 55
Supplier Advantage
Yangzhou Haihao Biotechnology Co.,Ltd 58
Nanbu County Chengxin Technology Co., Ltd. 55
Beijing Ouhe Technology Co., Ltd 60
Tetranov Biopharm 64
Nanjing Chemlin Chemical Co., Ltd 64
Shanghai Sunway Pharmaceutical Technology Co., Ltd 57
Shanghai HuiKe Trading Co., Ltd. 52
Chiba Pharmaceutical Science and technology Co, Ltd. 55
Shanghai Jian Chao Chemical Technology Co., Ltd. 55
Shanghai Yolne Chemical Co., Ltd. 55

View Latest Price from 3,4-dichloropyridazine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,4-dichloropyridazine pictures 2026-08-20 3,4-dichloropyridazine
1677-80-1
 $1.10 1g 99.00% 100 Tons Min Dideu Industries Group Limited
3,4-dichloropyridazine pictures 2022-04-22 3,4-dichloropyridazine
1677-80-1
 98%min 10kgs/month Shanghai Rlavie Technology Co ltd
3,4-dichloropyridazine pictures 2019-08-06 3,4-dichloropyridazine
1677-80-1
 $8.80 1KG 97%-99% 100kg Career Henan Chemical Co

3,4-dichloropyridazine Spectrum

3,4-dichloropyridazine(1677-80-1)1HNMR

1677-80-1 (3,4-dichloropyridazine) Related Search:

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3,4-dichloropyridazine Pyridazine, 3,4-dichloro- 3,4-dichloropyridazine ISO 9001：2015 REACH 1677-80-1