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141-30-0

Basic Information
CAS No.: 141-30-0
Name: 3,6-Dichloropyridazine
Article Data: 46
Molecular Structure:
Molecular Structure of 141-30-0 (3,6-Dichloropyridazine)
Formula: C4H2Cl2N2
Molecular Weight: 148.979
Synonyms: NSC 54498;Pyridazine, 3,6-dichloro-;
EINECS: 205-478-6
Density: 1.493 g/cm3
Melting Point: 65-69 °C
Boiling Point: 277 °C at 760mmHg
Flash Point: 147.9 °C
Solubility: Soluble in chloroform. Insoluble in water.
Appearance: off-white to brownish crystalline powder
Hazard Symbols: IrritantXi,ToxicT
Risk Codes: 36/37/38-25-20
Safety: 26-37/39-45-22-36/39-36
PSA: 25.78000
LogP: 1.78340
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    Product Name: 3,6-Dichloropyridazine CAS: 141-30-0 MF: C4H2Cl2N2 MW: 148.98 EINECS: 205-478-6 Mol File: 141-30-0.mol 3,6-Dichloropyridazine Structure 3,6-Dichloropyridazine Chemical Properties Melting point 65-69 °C (lit.)

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Chemistry

Molecular Structure of 3,6-Dichloropyridazine (CAS NO.141-30-0):
 
IUPAC Name: 3,6-Dichloropyridazine 
Molecular Weight: 148.97808 g/mol
Molecular Formula: C4H2Cl2N2 
Density: 1.493 g/cm3 
Melting Point: 65-69 °C(lit.)
Boiling Point: 277 °C at 760 mmHg 
Flash Point: 147.9 °C
Index of Refraction: 1.559
Molar Refractivity: 32.22 cm3
Molar Volume: 99.7 cm3
Surface Tension: 51.5 dyne/cm 
Enthalpy of Vaporization: 49.48 kJ/mol
Vapour Pressure: 0.00782 mmHg at 25 °C
XLogP3: 1.7
H-Bond Acceptor: 2
Exact Mass: 147.959503
MonoIsotopic Mass: 147.959503
Topological Polar Surface Area: 25.8
Heavy Atom Count: 8
Canonical SMILES: C1=CC(=NN=C1Cl)Cl
InChI: InChI=1S/C4H2Cl2N2/c5-3-1-2-4(6)8-7-3/h1-2H
InChIKey: GUSWJGOYDXFJSI-UHFFFAOYSA-N
EINECS: 205-478-6
Product Categories: Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks; Pyridazines; PyridazinesHeterocyclic Building Blocks

Uses

 3,6-Dichloropyridazine (CAS NO.141-30-0) is used as intermediates of medicine and pesticide.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LC50 inhalation > 1070mg/m3/4H (1070mg/m3) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ATAXIA
National Technical Information Service. Vol. OTS0543107,
rat LD50 oral > 50mg/kg (50mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: MUSCLE WEAKNESS
National Technical Information Service. Vol. OTS0543106,

Safety Profile

Hazard Codes: IrritantXi, ToxicT
Risk Statements: 36/37/38-25-20 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R25 :Toxic if swallowed. 
R20:Harmful by inhalation.
Safety Statements: 26-37/39-45-22-36/39-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S22:Do not breathe dust. 
S36:Wear suitable protective clothing. 
S39:Wear eye / face protection.
RIDADR: 2811
WGK Germany: 3
RTECS: UR5886250
Hazard Note: Irritant
HazardClass: 6.1
PackingGroup: III

Specification

 3,6-Dichloropyridazine (CAS NO.141-30-0) is also named as NSC 54498 ; Pyridazine, 3,6-dichloro- . It is off-white to brownish crystalline powder.