CHNO3S is a chemical compound registered under CAS number 25278-10-8, with the molecular formula CH N O3 S and a molecular weight of about 107.08 g/mol. It is also known as Cyanicacid, monoanhydride with sulfurous acid; Sulfurous acid, anhydride with cyanicacid. GoooChem supplies CHNO3S for laboratory research and bulk production; product code 1240012. Send an inquiry for purity, packaging, price and lead time.