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C.I. 50420, Acid black 2, Nigrosin
N 1616
for microscopy
32049000
18%
8005-03-6
Bottle / Drum
N 1616 (OTTO) Nigrosine (water soluble) Cas 8005-03-6 - used as a negative stain in place of India ink for spirochetes, bacteria, protozoa and fungi.It is employed as a common biological stain for tissues and cells. N 1616 (OTTO) Nigrosine (water soluble) Cas 8005-03-6 - used to make inks and shoe-polish and for dyeing leather, wood, textiles, and plastics. The crude mixture of nigrosine hydrochlorides (Phenol Black L) is used to dye phenolic resins.
Nigrosin is a mixture of synthetic black dyes (CI 50415, Solvent black 5) made by heating a mixture of nitrobenzene, aniline and aniline hydrochloride in the presence of a copper or iron catalyst. Its main industrial uses are as a colorant for lacquers and varnishes and in marker-pen inks. Sulfonation of nigrosin yields a water-soluble anionic dye, nigrosin WS (CI 50420, Acid black 2
Biological stains, Stains & dyes
Powder or crystals
Dark blue to deep blue to black
Max 15%
λmax 570 nm
50420
Hazard Codes XnRisk Statements 48/20/21/22WGK Germany 1
DisclaimerThe above particulars do not release the customer from the obligation to carry out an inspection of goods received. For laboratory use only. Not for drug, medical, household, or any other unauthorized application. We assume no liability for misuse or unauthorized application of the product. Please test before use.