4,5-Dichloro-2-methyl-2H-pyridazin-3-one

Modify Date: 2024-01-27 15:58:50

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure
4,5-Dichloro-2-methyl-2H-pyridazin-3-one structure
 Common Name 4,5-Dichloro-2-methyl-2H-pyridazin-3-one
CAS Number 933-76-6 Molecular Weight 179.004
Density 1.6±0.1 g/cm3 Boiling Point 197.2±50.0 °C at 760 mmHg
Molecular Formula C5H4Cl2N2O Melting Point 87-91ºC(lit.)
MSDS USA Flash Point 73.1±30.1 °C
Symbol GHS06
GHS06		 Signal Word Danger

 Names

Name 4,5-Dichloro-2-Methylpyridazin-3-One
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 197.2±50.0 °C at 760 mmHg
Melting Point 87-91ºC(lit.)
Molecular Formula C5H4Cl2N2O
Molecular Weight 179.004
Flash Point 73.1±30.1 °C
Exact Mass 177.970062
PSA 34.89000
LogP -0.34
Vapour Pressure 0.4±0.4 mmHg at 25°C
Index of Refraction 1.612
Storage condition 2-8°C

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UR6188000
CHEMICAL NAME :
3(2H)-Pyridazinone, 4,5-dichloro-2-methyl-
CAS REGISTRY NUMBER :
933-76-6
BEILSTEIN REFERENCE NO. :
0127609
LAST UPDATED :
199612
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C5-H4-Cl2-N2-O
MOLECULAR WEIGHT :
179.01

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 40,921,1985
TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>300 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 40,921,1985

 Safety Information

Symbol GHS06
GHS06
Signal Word Danger
Hazard Statements H301-H315-H317-H319-H335
Precautionary Statements P261-P280-P301 + P310-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes Xn: Harmful;
Risk Phrases R22
Safety Phrases 26-36
RIDADR UN 2811 6.1/PG 3
WGK Germany 3
RTECS UR6188000
Hazard Class 6.1
HS Code 2933990090

 Synthetic Route

4,5-Dichloro-3(2H)-pyridazinone structure

4,5-Dichloro-3(...

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methyl iodide structure

methyl iodide

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~74%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

CAS#:933-76-6

Literature: CEPHALON, INC. Patent: WO2009/142732 A2, 2009 ; Location in patent: Page/Page column 61-62 ; WO 2009/142732 A2
3,4-Dichloro-5-hydroxy-2(5H)-furanone structure

3,4-Dichloro-5-...

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monomethylhydrazine structure

monomethylhydrazine

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~90%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

CAS#:933-76-6

Literature: Hergenrother, Paul J.; Putt, Karson S.; Liu, Xianjun Patent: US2007/32496 A1, 2007 ; Location in patent: Page/Page column 13 ;
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2,3-Dichloromal...

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monomethylhydrazine structure

monomethylhydrazine

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~74%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Chen, Shih-Fong; Panzica, Raymond P. Journal of Organic Chemistry, 1981 , vol. 46, # 12 p. 2467 - 2473
4,5-DICHLORO-2-(HYDROXYMETHYL)-2,3-DIHYDROPYRIDAZIN-3-ONE structure

4,5-DICHLORO-2-...

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methyl iodide structure

methyl iodide

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~95%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Kim, Sung-Kyu; Cho, Su-Dong; Kweon, Deok-Heon; Lee, Sang-Gyeong; Chung, Joo-Wha; Shin, Sung Chul; Yoon, Yong-Jin Journal of Heterocyclic Chemistry, 1996 , vol. 33, # 2 p. 245 - 248
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4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Journal of the Chemical Society, , p. 2191,2194
5-chloro-2,6-dimethyl-2H-pyridazin-3-one structure

5-chloro-2,6-di...

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~%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Journal of the Chemical Society, , p. 2191,2194
4,5-dichloro-2,6-dimethyl-pyridazin-3-one structure

4,5-dichloro-2,...

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4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Journal of the Chemical Society, , p. 2191,2194
3,4-Dichloro-5-hydroxy-2(5H)-furanone structure

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Methylhydrazine sulfate structure

Methylhydrazine...

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~%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Journal of the Chemical Society, , p. 2191,2194
4,5-dichloro-1-methyl-6-oxo-1,6-dihydro-pyridazine-3-carboxylic acid structure

4,5-dichloro-1-...

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~%

4,5-Dichloro-2-methyl-2H-pyridazin-3-one Structure

4,5-Dichloro-2-...

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Literature: Journal of the Chemical Society, , p. 2191,2194

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

4,5-Dichloro-2-methyl-3(2H)-pyridazinone
4,5-dichloro-2-methylpyridazin-3(2H)-one
MFCD00051686
3(2H)-Pyridazinone, 4,5-dichloro-2-methyl-
4,5-dichloro-2-methylpyridazin-3-one
4,5-Dichloro-2-methyl-2H-pyridazin-3-one
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Chemsrc provides 4,5-Dichloro-2-methyl-2H-pyridazin-3-one(CAS#:933-76-6) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 4,5-Dichloro-2-methyl-2H-pyridazin-3-one are included as well.>> amp version: 4,5-Dichloro-2-methyl-2H-pyridazin-3-one

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