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Что (кто) такое purpurin$65624$ - определение
CHEMICAL COMPOUND
Hydroxylizaric acid; Purpurin (dye)
Purpurin
WIKIMEDIA DISAMBIGUATION PAGE
Purpurine; Purpurin (disambiguation)
·noun A dyestuff resembling alizarin, found in madder root, and extracted as an orange or red crystalline substance.
purpurin
WIKIMEDIA DISAMBIGUATION PAGE
Purpurine; Purpurin (disambiguation)
['p?:pj?r?n]
¦ noun Chemistry a red dye extracted from madder, also made by oxidizing alizarin.
Origin
C19: from L. purpura 'purple' + -in1.
Purpurin (glass)
OPAQUE GLASS OF THE ANCIENT WORLD
Porporino; Haematinum; Haimátinos; Hämatinon
Purpurin (Italian: Porporino; Latin: Haematinum, derived from Greek haimátinos = "of blood"; German: Hämatinon), sometimes referred to as glass porphyr, is an opaque glass of brownish to lustrous deep-reddish color which in classical antiquity was used for residential luxury objects, mosaics and various decorative purposes. Purpurin is somewhat harder than normal glass but can be easily cut and polished.
Википедия
1,2,4-Trihydroxyanthraquinone
1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone. It is a naturally occurring red/yellow dye. It is formally derived from 9,10-anthraquinone by replacement of three hydrogen atoms by hydroxyl (OH) groups.
Purpurin is also called verantin, smoke Brown G, hydroxylizaric acid, and C.I. 58205. It is a minor component of the classical lake pigment "madder lake" or Rose Madder.
