Application: Itisusedtoproduceethnicsacid;aceticanhydride,syntheticresin,rubber,plasticandspice,alsousedtomakeleather,medicine,paper,preservative,mildewpreventive,developer,dissolventandreducer,etc. Item Index Aldehydecontent,%≥ 99.5% IdentificationofNitrendipineTabletsmatchestheInfraredspectrometry. appearance Colorlessvolatileliquidwithpungentodor moisture[water]content< 0.005% Cl< 0.001% Indexofrefractionn20/D 1.3310-1.3330