How do you spell Helianthin
Definitions
Available Definitions:
1) n. - An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl orange.
Available Definitions:
1) n. - An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl orange.
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