Agent Name

Orcinol monohydrate

CAS Number

6153-39-5

Formula

C7-H8-O2.H2-O

Major Category

Other Classes

Synonyms

5-Methylresorcinol monohydrate; Resorcinol, 5-methyl-, monohydrate; [ChemIDplus] 3,5-Dihydroxytoluene monohydrate; [Alfa Aesar MSDS]

Category

Phenols

Description

Solid that reddens on exposure to air; [Merck Index] Crystalline solid; [Alfa Aesar MSDS]

Sources/Uses

Found in many lichen species; Used as a reagent for pentoses, lignin, beet sugar, saccharoses, arabinose, and diastase; [Merck Index] "Orcinol is a natural phenolic organic compound that occurs in many species of lichens including Roccella tinctoria and Lecanora." [Wikipedia]

Comments

A skin and strong eye irritant; Harmful by ingestion; [Alfa Aesar MSDS] See "Orcinol."

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