Reverse Search from Properties to Material

The starting point of a reverse search is often from a lead product that is currently on the market but in need of improvements, with a given set of properties that should be modified. The search questions include  

What physical and chemical modifications of the lead compound have the best potential to improve its properties in the desired directions Ay The modified properties can be written as y + Ay, and the modified structure can be written as X + Ax. The derivative Ax/Ay represents the structure change required to achieve a particular property change. 

What other types of material would have a set of properties in the range of the desired properties For instance, which class of compounds smells even better than musk, and where would we find a cure of lung cancer This is symbolically written as. v = g(y). 

The reverse search is the most often encountered search question in product engineering, but there are few organized and convenient search engines. 

we execute three forward searches plus interpolation, which has the effect of a reverse search. 

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Do a reverse search from properties to materials. What are all the hydrocarbons... 

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