InChI=1S/C4H6O/c1-2-3-4-5/h1,5H,3-4H2 AuxInfo=1/0/N:1,2,3,4,5/rA:11nCCCCOHHHHHH/rB:t1;s2;s3;s4;s1;s3;s3;s4;s4;s5;/rC:-1.529,2.0277,0;-1.1363,.9001,0;-.6471,-.3779,0;.8966,-.4068,0;1.3584,-1.7514,0;-1.8199,2.9022,0;-1.0264,-.8947,.8845;-1.0264,-.8947,-.8845;1.2966,.0917,-.8878;1.2966,.0917,.8878;2.337,-1.6879,0;