Phosphatidylcholines,soya (CAS NO.97281-47-5), its Synonyms are Ovolecithin ; PC, soybean ; PC ; Phosphatidylcholine ; Soy PC ; Vitellin ; 3-SN-Phosphatidylcholine ; 1,2-Diacyl-SN-glycero-3-phosphocholine type I-EH .