Hematoxylin or Haematoxylin, a basophilic dye extracted from the tree Haematoxylum campechianum, is often used together with eosin (H&E stain) in histological study under light microscope. The dye is also used alone as a nuclear counterstain in immunohistochemistry. To produce a functional dye, hematoxylin is oxidized to hematein and subsequently is bound to one of several metal ions including aluminum (Al⁺³), iron (Fe⁺³) and chromium (Cr⁺³).
Tested for use in Delafield-Heidenhain staining.

λ max. 0.004 % in acetonitrile Indicator

293 ±3 nm pH 5.0 - 6.0

WARNING

Hazard Statements	H315 - H319 - H335
Precautions	P280
Reaction	P302 +P352 - P304 +P340 - P305 +P351 +P338 - P332 +P313 - P337 +P313

EINECS: 208-237-3 • WGK: 2L • HS: 32030010
Storage Temperature: +15 °C to +30 °C