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| CAS No.: | 141-30-0 |
|---|---|
| Name: | 3,6-Dichloropyridazine |
| Article Data: | 46 |
| Molecular Structure: | |
|
|
|
| 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: |
 Xi, T
|
| 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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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: 
Xi, 
T
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.