ROY
... that a chemical known as ROY has eleven crystalline forms, including red, orange and yellow examples?
... that a chemical known as <b id="mw0g"><a href="./5-Methyl-2-((2-nitrophenyl)amino)-3-thiophenecarbonitrile" id="mw0w" rel="mw:WikiLink" title="5-Methyl-2-((2-nitrophenyl)amino)-3-thiophenecarbonitrile">ROY</a></b> has eleven crystalline forms, including red, orange and yellow examples?