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3-Chloro-4-methylpyridazine

3-Chloro-4-methylpyridazine structure

CAS No.: 68206-04-2

Chemical Name:: 3-Chloro-4-methylpyridazine

Synonyms: 3-CHLORO-4-METHYLPYRIDAZINE;3-Chloro-4-methyl-1,2-diazine;Pyridazine, 3-chloro-4-methyl-;3-Chloro-4-methylpyridazine97%;3-Chloro-4-methylpyridazine 97%;3-Chloro-4-methylpyridazine ISO 9001：2015 REACH

CBNumber:: CB4848477

Molecular Formula:: C5H5ClN2

Molecular Weight:: 128.56

MDL Number:: MFCD08460979

MOL File:: 68206-04-2.mol

MSDS File:: SDS

Last updated:2025-07-24 18:13:48

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3-Chloro-4-methylpyridazine Properties

Melting point	46-47 °C
Boiling point	254.7±20.0 °C(Predicted)
Density	1.234±0.06 g/cm3(Predicted)
storage temp.	under inert gas (nitrogen or Argon) at 2-8°C
form	solid
pka	1.54±0.10(Predicted)
color	White

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H332-H335
Precautionary statements	P261-P280-P305+P351+P338
HS Code	2933399990

3-Chloro-4-methylpyridazine price More Price(25)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	C370916	3-Chloro-4-methylpyridazine	68206-04-2	1g	$200	2021-12-16	Buy
Biosynth Carbosynth	FC151278	3-Chloro-4-methylpyridazine	68206-04-2	500mg	$205	2021-12-16	Buy
Matrix Scientific	083991	3-Chloro-4-methylpyridazine 97%	68206-04-2	1g	$218	2021-12-16	Buy
SynQuest Laboratories	3H32-5-84	3-Chloro-4-methylpyridazine 95%	68206-04-2	1g	$264	2021-12-16	Buy
Biosynth Carbosynth	FC151278	3-Chloro-4-methylpyridazine	68206-04-2	1g	$359	2021-12-16	Buy

Product number	Packaging	Price	Buy
C370916	1g	$200	Buy
FC151278	500mg	$205	Buy
083991	1g	$218	Buy
3H32-5-84	1g	$264	Buy
FC151278	1g	$359	Buy

3-Chloro-4-methylpyridazine Chemical Properties,Uses,Production

Uses

3-Chloro-4-methylpyridazine is a useful intermediate for the synthesis of pesticides and anti-viral drugs.

Synthesis

33471-40-8

68206-04-2

General procedure for the synthesis of 3-chloro-4-methylpyridazine from 4-methyl-3(2H)-pyridazinone: The product of step c) (12.2 g, 0.112 mol) was dissolved in phosphorochloridic acid chloride (125 mL) and heated to reflux for 3 hours at 90 °C. Upon completion of the reaction, the reaction mixture was cooled to room temperature and concentrated to near dryness under reduced pressure. The concentrated residue was carefully poured into an ice/water mixture and the pH was adjusted to basic by slowly adding 4N NaOH solution. Subsequently, extraction was carried out with ether and the aqueous phase was then subjected to a secondary extraction with dichloromethane (DCM). All organic phases were combined, washed with water, dried over anhydrous sodium sulfate, filtered and concentrated to dryness under reduced pressure. Finally, the residue was purified by rapid chromatography on silica gel with 2:1 ethyl acetate-isohexane as eluent to give an orange solid product (11.2 g, 78% yield). The product was characterized by 1H NMR (400 MHz, CDCl3): δ 8.97 (1H, d, J = 4.9 Hz), 7.35 (1H, d, J = 4.9 Hz), 2.44 (3H, s) ppm.

References

[1] Patent: WO2004/74290, 2004, A1. Location in patent: Page 79
[2] Pharmaceutical Bulletin, 1957, vol. 5, p. 229,233
[3] Journal of Medicinal Chemistry, 1987, vol. 30, # 2, p. 239 - 249

3-Chloro-4-methylpyridazine Preparation Products And Raw materials

Raw materials

4-METHYL-3(2H)-PYRIDAZINONE

Preparation Products

3-Chloro-4-methylpyridazine Suppliers

Global( 133)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Capot Chemical Co.,Ltd.	+8613336195806	sales@capot.com	China	29733	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29855	58
Shenzhen Nexconn Pharmatechs Ltd	+86-755-89396905 +86-15013857715	admin@nexconn.com	China	10406	58
Accela ChemBio Inc.	+1-858-6993322	info@accelachem.com	United States	21193	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49732	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	+8613580539051	joe@yuhengpharm.com	CHINA	21142	58
Shanghai Rlavie Technology Co ltd	+86-021-67759270 +8617717059219	sales@rlavie.com	China	1030	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	20906	58

Supplier	Advantage
Capot Chemical Co.,Ltd.	60
career henan chemical co	58
Shenzhen Nexconn Pharmatechs Ltd	58
Accela ChemBio Inc.	58
Hubei xin bonus chemical co. LTD	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	58
Shanghai Rlavie Technology Co ltd	58
Dideu Industries Group Limited	58

View Lastest Price from 3-Chloro-4-methylpyridazine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2022-05-31	3-Chloro-4-methylpyridazine 68206-04-2	US $0.00-0.00 / KG	0.0001KG	98%min	100kgs/month	Shanghai Rlavie Technology Co ltd
2021-11-03	3-Chloro-4-methylpyridazine 68206-04-2	US $1.10 / g	1g	99.00%	100 Tons Min	Dideu Industries Group Limited
2019-07-06	3-Chloro-4-methylpyridazine 68206-04-2	US $1.00 / KG	1KG	95%	500kg	Career Henan Chemical Co

3-Chloro-4-methylpyridazine
68206-04-2
US $0.00-0.00 / KG
98%min
Shanghai Rlavie Technology Co ltd

3-Chloro-4-methylpyridazine
68206-04-2
US $1.10 / g
99.00%
Dideu Industries Group Limited

3-Chloro-4-methylpyridazine
68206-04-2
US $1.00 / KG
95%
Career Henan Chemical Co

3-Chloro-4-methylpyridazine Spectrum

3-Chloro-4-methylpyridazine(68206-04-2)¹HNMR

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3-CHLORO-4-METHYLPYRIDAZINE 3-Chloro-4-methyl-1,2-diazine 3-Chloro-4-methylpyridazine 97% 3-Chloro-4-methylpyridazine97% Pyridazine, 3-chloro-4-methyl- 3-Chloro-4-methylpyridazine ISO 9001：2015 REACH 68206-04-2 Pyridazine series Pyrazines, Pyrimidines & Pyridazines Building Blocks Pyridazine Halides Pyrazines, Pyrimidines & Pyridazines