Expert rules for substance with out CAS or UN

Hi All,

We do have some products in for which we do not have any sort of identifier (neither CAS or UN) and that substance is printed on MSDS as CAS# not available, but under component we mention its name and under percentage we will provide XY%.

My concern is, how expert rule can work on this scenarios ? do I need to write my own rule ? we do have these types of substance around 10-15. How Expert rule calculate the Standard composition by ECBP ?

--

😊