a reddish, crystalline, anthraquinone dye, C14H5O2(OH)3, isomeric with flavopurpurin.
Origin of purpurin
< Latin purpur(a
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for purpurin
Historical Examples of purpurin
These chemists isolated two compounds which they named alizarin and purpurin.
We may remark that purpurin has not been obtained by direct synthesis.
In the roots three coloring matters are obtained: alizarin and purpurin, which are both red, and xanthin, which is yellow.
The only dyes in this group which appear somewhat behind the rest in point of fastness are purpurin and alizarin maroon.
Madder contains two closely allied colouring matters, namely, alizarin and purpurin.
British Dictionary definitions for purpurin
a red crystalline compound used as a stain for biological specimens; 1,2,4-trihydroxyanthraquinone. Formula: C 14 H 5 O 2 (OH) 3
Word Origin for purpurin
C19: from Latin purpura purple + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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A reddish crystalline compound used as a biological stain.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.