purpurin

(redirected from alizarin purpurin)
Also found in: Medical, Encyclopedia.

pur·pu·rin

 (pûr′pyə-rĭn′)
n.
A reddish crystalline anthraquinone derivative, C14H8O5, that is isolated from madder root for use as a biological stain and commercial dye.

[Latin purpura, purple; see purple + -in.]

purpurin

(ˈpɜːpjʊrɪn)
n
(Elements & Compounds) a red crystalline compound used as a stain for biological specimens; 1,2,4-trihydroxyanthraquinone. Formula: C14H5O2(OH)3
[C19: from Latin purpura purple + -in]