embryos of the grasshopper chortophaga viridifasciata were exposed in vitro to formaldehyde ( fa ) , as formalin , at concentrations ranging from 10 ( -8 ) m ( 0.0003 ppm ) to 10 ( -3 ) m ( 30 ppm ) at 38 degrees c .
C0016564
formaldehyde
C0949307
formalin