Type Substrate

241 - Product-like inhibitor
242 - Profen pro-drug
243 - Propargyl
244 - Propionate
245 - Prostaglandin
246 - Purine
247 - Pyrazole
248 - Pyrethroid
249 - Pyridine
250 - Pyridinium

251 - Pyrimidine
252 - Pyrrolidine
253 - Quinoline
254 - Retinol ester
255 - Rhodamine derivative
256 - Ribose
257 - Ring opening polymerization substrate
258 - Salicylic
259 - Siderophore
260 - Sinapyl