107-02-8 2-Propen-1-one 2-propenal Acraldehyde Acrolein Acrylic aldehyde Allyl aldehyde InChI=1/C3H4O/c1-2-3-4/h2-3H,1H Magnacide H and B Propenaldehyde acquinite acrylaldehyde aqualine biocide crolean ethylene aldehyde magnacide magnacide h prop-2-en-1-al prop-2-enal propenal propylene aldehyde slimicide trans-acrolein