sodiumnitrophenate, p-nitrophenolate sodium, NAPNP, sodium 4-nitrophenolate, 4-nitrophenol sodium salt, sodiumnitrophenol, Sodium 4-nitrophenox, pnsp, SODIUM-P-NITROPHENOL, sodium para-nitrophenolate, p-nitrophenol sodium salt, U.N. 2497, sodiump-nitrophenoxide, SODIUM 4-NITROPHENOL, SODIUM-P-NITROPHENATE, Sodium 4-nitrophenolate