Description and references
A somewhat variable mixture obtained by oxidation
of methylene blue, contg primarily azure A and azure B, q.q.v.
Prepn: Bernthsen, Ann. 230, 169 (1885); Kehrmann, Ber. 39, 1804 (1906). Review: H. J. Conn's Biological Stains, R. D. Lillie, Ed. (Williams
& Wilkins, Baltimore, 9th ed., 1977) pp 493-502.
Properties
Green glistening crystals. Forms blue soln in
water; very sparingly sol in alcohol with a reddish brown fluorescence.Derivative
Mixture with methylene blue.
Nomenclature
Azure II; azure blue II; methylene azure II. Properties
Deep-green powder. Sol in water with blue color,
less sol in alcohol, slightly sol in chloroform. Insol in ether.Derivative
Mixture with methylene blue and eosin.
Nomenclature
Azure II eosin. Properties
Chief ingredient of Giemsa stain. Green powder.
Slightly sol in water; sol in alcohol, methanol, glycerol.Use
Biological stain.