CAS No: 2257-69-4, Chemical Name: 4-chloro-1,2-dihydrophthalazin-1-one
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2257-69-4 4-chloro-1,2-dihydrophthalazin-1-one

product Name 4-chloro-1,2-dihydrophthalazin-1-one
Synonyms 1-Chloro-3,4-dihydrophthalazin-4-one; 4-chlorophthalazin-1(2H)-one
Molecular Formula C8H5ClN2O
Molecular Weight 180.5911
InChI InChI=1/C8H5ClN2O/c9-7-5-3-1-2-4-6(5)8(12)11-10-7/h1-4H,(H,11,12)
CAS Registry Number 2257-69-4
Molecular Structure 2257-69-4 4-chloro-1,2-dihydrophthalazin-1-one
Density 1.5g/cm3
Melting point 265℃
Boiling point 452.7°C at 760 mmHg
Refractive index 1.688
Flash point 227.6°C
Vapour Pressur 8.2E-09mmHg at 25°C
Hazard Symbols  Xi:Irritant;
Risk Codes R36/37/38:Irritating to eyes, respiratory system and skin.;
Safety Description 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.;