Description
Azure II eosinate, for microscopy, Molar mass (M) 1317,92 g/mol, CAS No. 53092-85-6, Empirical formula C16H18ClN3S · C15H16ClN3S · C20H6Br4Na2O5
Azure II is a mixture of equal parts of the basic coal tar dyes methylene blue, Azure B and eosin. It is mainly used for staining of blood elements (e.g. in Giemsa staining solution, Art. No. T862).
In watery solution it forms Azure B eosinates which cause the so called “Romanowsky-Giemsa effect”, a polychromatic, pH-dependent staining of chromatin.
Technical Information
| Soluble in | Methanol, acetic acid |
Compliance & Safety Information
Dangereux
Hazard Statements (H-Phrases)
H318
Causes serious eye damage
Precautionary Statements (P-Phrases)
P280
Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

