The (S)-Hexahydro-2,6-dioxo-4-pyrimidinecarboxylic acid phenylmethyl ester, its cas register number is 103300-84-1. It also can be called as 4-Pyrimidinecarboxylicacid, hexahydro-2,6-dioxo-, phenylmethyl ester, (4S)- and 4-Pyrimidinecarboxylicacid, hexahydro-2,6-dioxo-, phenylmethyl ester, (S)- (9CI).

There are some first aid measures: (1) Inhalation, please supply fresh air. If required, provide artificial respiration, and keep patient warm, also consult doctor if symptoms persist; (2) Skin contact, please seek immediate medical advice, then instantly wash with water and soap and rinse thoroughly; (3) Eye contact, please seek immediate medical advice, and rinse opened eye for several minutes under running water. Then consult doctor; (4) Swallowing, please seek immediate medical advice.