You would be the first to do this, and I think it would be fantastic, but not everyone necessarily likes using 10-milliliter multi-use bottles. Other, less bulky formats exist.
Some protocols require stacking several molecules at the same time, in doses that aren't necessarily enormous. This sometimes forces the use of the same vial for months. Over time, oils go rancid, benzyl alcohol can evaporate, and improper handling can render 10 milliliters unusable at once. Perhaps this would necessitate an increase in the price per milliliter. This question may have already been raised. What are your thoughts? Thank you