21-Hydroxypregn-4-en-3,20-dione Formula: C21H30O3 CAS#: 64-85-7 MW: 330.46 [MS]

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Species utilize 21-Hydroxypregn-4-en-3,20-dione in its chemical communication system Heteroptera, Belostomatidae, Belostomatinae   Abedus herberti      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦    Herbert's giant water bug    Coleoptera, Dytiscidae, Colymbetinae, Agabini   Agabus seriatus      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦        Coleoptera, Dytiscidae, Dytiscinae, Aciliini   Acilius sulcatus      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦    Common pond beetle  Graphoderus liberus      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦        Coleoptera, Dytiscidae, Dytiscinae, Cybistrini   Cybister confusus      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦      Cybister limbatus      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦      Cybister tripunctatus      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦    Three-punctured diving beetle    Coleoptera, Dytiscidae, Dytiscinae, Dytiscini   Dytiscus marginalis      Al ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦    Great diving beetle