acrolein + hydrogen cyanide <=> (2S)-2-hydroxybut-3-enenitrile
acrolein + hydrogen cyanide <=> (2s)-2-hydroxybut-3-enenitrile
acrolein + hydrogen cyanide <=> (2S)-2-hydroxybut-3-enenitrile
acrolein + hydrogen cyanide <=> (2s)-2-hydroxybut-3-enenitrile