maleic hydrazide; Maleic hydrazide; 1,2-dihydro -3,6-pyridazinedione; Qingliansu, 123-33-1

Chinese name: maleic hydrazide; Maleic hydrazide; 1,2-dihydro -3,6-pyridazinedione; Qingansu
english name:3,6-Dihydroxypyridazine
chinese alias: maleic hydrazide 1,2-Dihydro -3,6-pyridazinedione Qingansu 1,2-Dihydropyridazine -3,6-dione Yadan
english alias:3,6-Pyridazinediol; Maleic acid hydrazide; Maleic hydrazide
CAS No:123-33-1
chemical formula: C4H4N2O2
molecular weight:112.087
density:1.528g/cm3
melting point:306-308 ℃
boiling point:202.644°C at 760 mmHg
flash Point:76.111°C
vapor pressure:0.289mmHg at 25°C
refractive index:1.649
dangerous Goods Transport No: UN3077
hazard Category Code: r40: Limited evidence of a carcinogenic effect. R36/37/38 Irritating to eyes, respiratory tract and skin.
Dangerous Goods Signs: xn: Hazardous substances
safety instructions: s26: In case of contact with eyes, immediately rinse with plenty of water and send to a doctor for treatment. S45: If you have an accident or feel unwell, seek medical help immediately (preferably with the product container label). S36/37/39: Wear suitable protective clothing, gloves and use protective eyewear or face shield.

Source: https://www.cnchemshop.com/