1. COMPOSITION

Technical Haematein obtained from Campeche Wood by oxidation of Haematoxylin.

Natural Black 1

Color Index 75290

CAS No. 475-25-2

Chemical formulation : C16 H12 O6

2. PHYSICAL and CHEMICAL PROPERTIES

Aspect                                     powder

Colour                                     red brown

Humidity                                   < 12 %

Solubility                                 insoluble in water

                                           Soluble in alkali

3. CHARACTERISTICS

Haematein is a natural dye used as coloured reagent. The main applications are biology, histology for nuclear staining.

4. APPLICATIONS

Biology            Staining nuclear material and animal tissues

Histology          Nuclear stain in general purpose. Stains Leucocyte nuclei.

                   For nuclei staining in Papanicolau technic.

Ink                Special applications