The Colour of Codeine ?

[pipolito]

A guy I met on Mars told me that he does a lot of Codeine by CWEing Atasol-8 pills (ACE, 15mg Caffeine, 8mg Codeine) which are OTC on his planet. He told me that his pills were orange and so the result of the extraction ( the water+caffeine+codeine) is also orange. However one guy from Pluton said that using lab-grade filters, he got an almost clear solution which still contained codeine, which means the extraction was successful. Can anyone explain how lab-grade filters can filter the color ?

Also, he asked me if, while coming to Canada ( which is close to Mars), he could buy any lab-grade filters ? If anyone could give that poor martian a clue about where to get them ?

Thanks