Can you only get compound corrections needed for SRIM experimentally?

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I need a to get the peak energy deposited by muons in polyvinyl toluene [CH2CH(C6H4CH3)]n for a scale calibration. I think I can do this via the stopping power but cannot find bragg/compound correction online. Anyone know of a way to determine it from the chemical fomula?
Screenshot of the Ion Stopping and Range Tables dialog: ion is hydrogen, target EJ-200 with carbon 52.40% and hydrogen 47.60% by atom, Calculate Table and Compound Correction fields visible.
 
To a good approximation, you can ignore chemical bonds and just treat it like the sum of carbon and hydrogen in the material.
 
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mfb said:
To a good approximation, you can ignore chemical bonds and just treat it like the sum of carbon and hydrogen in the material.
Thats what it does by default, the compound correction is due to the bonds. I found sources saying it causes a variation of 2-20% depending on the molecule.
 
You can see if you find numbers for toluene or some hydrocarbons with a longer chain. I don't expect large differences however.