Specification :

Name: Phthalazone

Synonyms: Benzo[ d] pyridazin-1( 2H) one; Phthalazone; 1( 2H) -Phthalazinone

CAS No.: 119-39-1

EINECS: 204-319-8

Molecular Formula: C8H6N2O

Molecular Weight: 146.15

Purity( HPLC) : > 98.0%
Needle-like crystals ( water) . A ketone-and hydroxyl-based, ketone-type structure to the main income for the prismatic crystal sublimation, melting point 183-184  , boiling point 337  , soluble in water.
Anti allergy action.

Hydralazine hydrochloride intermediate