Organic reference standard, Patent Blue V calcium salt, analytical standard, Supelco®

Toimittaja: Merck

74748-25MGEA 121 EUR
74748-25MG
Organic reference standard, Patent Blue V calcium salt, analytical standard, Supelco®
Standardiaineet ja vertailumateriaalit Organic Standards
Sertifikaatit: Literature for Patent Blue Violet discusses two dyes which are very similar, Colour Index Numbers 42045 and 42051. Structurally they differ with regard to the substituents on one of the aromatic rings. C.I. 42045 is 2,4-disulpho-substituted while C.I. 42051 is 2,4-disulpho-5-hydroxy-substituted. This is the latter form.

Pakkaus: Bottomless glass bottle. Contents are inside inserted fused cone.
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