3(2H)-Pyridazinone, 4,5-dichloro-2-methyl-

3(2H)-Pyridazinone, 4,5-dichloro-2-methyl- - Names and Identifiers

Name	4,5-Dichloro-2-methylpyridazin-3-one
Synonyms	BRN 0127609 AKOS B029262 4,5-Dichloro-2-methylpyridazin-3-one 4,5-DICHLORO-2-METHYLPYRIDAZIN-3-ONE 4,5-dichloro-2-methyl-3(2h)-pyridazinon 4,5-DICHLORO-2-METHYLPYRIDAZIN-3[2H]-ONE 4,5-DICHLORO-2-METHYL-2H-PYRIDAZIN-3-ONE 4,5-Dichloro-2-methyl-3(2H)-pyridazinone 4,5-dichloro-2-methylpyridazin-3(2H)-one 4,5-DICHLORO-2-METHYL-3(2H)-PYRIDAZINONE 4,5-DICHLORO-2-METHYLPYRIDAZINE-3(2H)-ONE 3(2H)-Pyridazinone, 4,5-dichloro-2-methyl- 5-24-02-00023 (Beilstein Handbook Reference) 4,5-DICHLORO-2-METHYL-2,3-DIHYDROPYRIDAZIN-3-ONE
CAS	933-76-6
InChI	InChI=1/C5H4Cl2N2O/c1-9-5(10)4(7)3(6)2-8-9/h2H,1H3

3(2H)-Pyridazinone, 4,5-dichloro-2-methyl- - Physico-chemical Properties

Molecular Formula	C5H4Cl2N2O
Molar Mass	179
Density	1.55±0.1 g/cm3(Predicted)
Melting Point	87-91°C(lit.)
Boling Point	197.2±50.0 °C(Predicted)
Flash Point	73.1°C
Solubility	soluble in Ethanol
Vapor Presure	0.382mmHg at 25°C
Appearance	White-like to yellow crystals
Color	White to Orange to Green
pKa	-3.57±0.20(Predicted)
Storage Condition	under inert gas (nitrogen or Argon) at 2-8°C
Refractive Index	1.611

3(2H)-Pyridazinone, 4,5-dichloro-2-methyl- - Risk and Safety

Hazard Symbols	Xn - Harmful
Risk Codes	R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing.
UN IDs	UN 2811 6.1/PG 3
WGK Germany	3
RTECS	UR6188000
HS Code	29339980

3(2H)-Pyridazinone, 4,5-dichloro-2-methyl- - Introduction

4, is an organic compound with the chemical formula C6H4Cl2N2O. The following is a description of some of its properties, uses, methods and safety information:

Nature:
-Appearance: 4, colorless to light yellow solid.
-Solubility: It is insoluble in water, but can be dissolved in organic solvents, such as ethanol and dimethylformamide.
-Melting point: Its melting point is about 160-163°C.
-Stability: The compound is relatively stable at room temperature.

Use:
-Chemical synthesis: 4. It can be used as an intermediate in organic synthesis to prepare other compounds.
-Pesticide: It is also used as a raw material for some pesticides and herbicides.

Method:
- 4, generally synthesized by the chemical reaction of pyridazine compounds. The specific synthetic method may vary depending on the specific experimental conditions.

Safety Information:
-Because 4 is a chemical compound, the operation should follow the corresponding laboratory safety procedures.
-It may cause irritation to the skin, eyes and respiratory system, so wear appropriate protective equipment such as safety glasses, gloves and respiratory protection during operation.
-When handling this compound, care should be taken to avoid direct contact and inhalation of its dust.

Last Update：2024-04-10 22:29:15