pentaerythritol (petp/thme) is rich in variety and my country’s industry concentration needs to be improved
pentaerythritol (petp/thme), also known as tetrahydroxymethylmethane and 2,2-bishydroxymethyl-1,3-propanediol, has a chemical formula of c5h12o4 and is an organic compound. pentaerythritol appear…

