Pyridazin-3(2H)-one

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CAS NO.: 504-30-3 Catalog: PYR0203
Formula: C4H4N2O Purity: 97.00% +
Molecular Weight: 96.09 Pubchem CID: 68153
InChI Key: AAILEWXSEQLMNI-UHFFFAOYSA-N
Canonical SMILES: C1=CC(=O)NN=C1
Storage: Store in a cool, dry and well-ventilated area away from incompatible substances.
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Properties Information

Melting point:
98-104 °C
Boiling point:
101°C/1.5mmHg(lit.)
Density 
1.478 g/cm3
pka
11.47±0.20(Predicted)
?max
290nm(EtOH)(lit.)
BRN 
106974
InChIKey
AAILEWXSEQLMNI-UHFFFAOYSA-N

Safety Information

Symbol(GHS) 

GHS07
Signal word 
Warning
Hazard statements 
H315-H319-H335
Precautionary statements 
P261-P305+P351+P338-P280a-P304+P340-P405-P501a
Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37
WGK Germany 
3
HS Code 
29339900