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

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Names

[ CAS No. ]:
933-76-6

[ Name ]:
4,5-Dichloro-2-methyl-2H-pyridazin-3-one

[Synonym ]:
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

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

MSDS

Click to get detail MSDS

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

[ 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

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 4,5-Dichloro-3(2H)-pyridazinone
  • methyl iodide
  • 3,4-Dichloro-5-hydroxy-2(5H)-furanone
  • monomethylhydrazine
  • 2,3-Dichloromaleic acid
  • 4,5-DICHLORO-2-(HYDROXYMETHYL)-2,3-DIHYDROPYRIDAZIN-3-ONE
  • 4-Nitro-3-methylmercapto-2-cyan-crotonsaeuremethylester
  • 5-chloro-2,6-dimethyl-2H-pyridazin-3-one
  • 4,5-dichloro-2,6-dimethyl-pyridazin-3-one
  • Methylhydrazine sulfate

DownStream

  • 4-chloro-5-hydrazinyl-2-methylpyridazin-3-one
  • 4-Chloro-2-methyl-5-morpholinopyridazin-3(2h)-one
  • 2-oxo-2-phenylethyl 3-methoxybenzoate
  • 4-[amino(methyl)amino]-5-chloro-2-methylpyridazin-3-one
  • 2-methyl-5-nitro-1H-pyridazine-3,4-dione
  • Chloridazone-methyl-desphenyl
  • 4-Amino-5-chloro-2-methyl-3-oxo-2H-pyridazine
  • 5-amino-2-methyl-2,3-dihydropyridazin-3-one
  • 4-Chloro-5-Methoxy-2-Methylpyridazin-3(2H)-One
  • 4-chloro-2-methyl-5-phenylpyridazin-3-one

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%

Related Compounds

  • 6-amino-4,5-dichloro-2-methyl-2H-pyridazin-3-one
  • 4,5-dichloro-2-[(4-chlorophenyl)methyl]pyridazin-3-one
  • 4,5-dichloro-2-[(2-chlorophenyl)methyl]pyridazin-3-one
  • 4,5-dichloro-2-[[3-(trifluoromethyl)phenyl]methyl]pyridazin-3-one
  • 4,5-dichloro-2-(2-hydroxy-ethyl)-2H-pyridazin-3-one
  • 4,5-Dichloro-2-(tetrahydro-pyran-2-yl)-2H-pyridazin-3-one
  • 1,2-Bis[(2,2':6',2''-terpyridin-4'-yl)oxy]ethane
  • Ethyl 2-(3-amino-2-methyloxolan-3-yl)acetate
  • 5-[(Tert-butoxy)carbamoyl]pentanoicacid
  • 4,6-Dimethylnonane-3,7-diol
  • 3,4a(2)-Diheptyl-2,2a(2)-bithiophene
  • 1-(4-Bromo-2-cyclopropylmethoxyphenyl)-ethanone
  • 2-(2-Methoxyethoxy)-5-(1-piperazinyl)benzonitrile
  • 2-(methoxymethyl)-6-(trifluoromethyl)-1H-1,3-benzodiazole
  • 3-(3-Amino-2,2-dimethylpropyl)phenol
  • 4,4'-((Cyclopropylmethoxy)(phenyl)methylene)bis(methoxybenzene)
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