A new compound was prepared at the park to house them on their arrival.

This compound was first prepared in 1933, a few years after the discovery of rhenium.

The compound was first prepared by the reaction of 1,3-dibromopropane and ethylenediamine.

Commercially available, this compound can been be prepared by several route.

By using this characteristic, several fluorine-containing compounds have been prepared.

This compound can be prepared by the reaction of 1-naphthylamine with 2-chloroethanamine.

The compound was first prepared in 1956 along with other substituted phenylpentazoles.

As recently as the early 1940s, most drugs and natural compounds were prepared this way.

This compound (already known since 1895) is prepared in two steps.

The compound is prepared from testosterone in a four step synthesis.