Sudan Black B

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A nonfluorescent black biological stain. Sudan Black B is a diazo type dye that has been used as a general stain for oils and fats. It also stains acrylic emulsions (Messinger 1992).

Synonyms and Related Terms

SB; CI 26150; Fat Black HB; Solvent Black 3; negro sudán B (Esp.)

Chemical structure

Sudan Black B.jpg

Other Properties

Soluble in nonpolar solvents. Maximum absorption wavelength = 598 nm.

Composition C29H24N6
CAS 4197-25-5
Melting Point 120-124
Molecular Weight mol. wt. = 456.2082

Hazards and Safety

Contact may cause irritation.

Fisher Scientific: MSDS

Additional Information

º J.Messinger, "Ultraviolet-Fluorescence Microscopy of Paint Cross Sections", 31(3):267-274, 1992. Link° R.Wolbers, G.Landry, "The Use of Direct Reactive Fluorescent Dyes for the Characterization of Binding Media in Cross Sectional Examinations" in Preprints of the AIC Meeting in Vancouver, 1987. ° M.Johnson, E.Packard, "Methods Used for Identification of Binding Media in Italian paintings of the 15th and 16th Centuries" Studies in Conservation, 16:145-164, 1971.

Sources Checked for Data in Record

  • Aldrich Chemical Catalog