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Nigrosin Water Soluble C.I. 50420

£9.95 to £31.25

Code: Please choose option from drop down above
  Pack Size List Price Qty  
photo_camera 50g
RRBD43-2W
£15.95
photo_camera 100g
RRBD43-X
£31.25
photo_camera 10g
RRBD43-U
£9.95
photo_camera 25g
RRBD43-W
£13.95

Nigrosin can be used for negative staining of bacteria. The shapes and sizes of the organisms are seen as colour-free outlines against the dark background. An advantage of using this method, rather than regular positive stains like methylene blue or carbol fuchsin, is that prior fixation by heat or alcohol is not needed, so the organisms are seen in more life-like shapes. Furthermore, negative staining with nigrosin can reveal some microorganisms that cannot be stained by regular methods.

  • Biological Stain
  • Colorant for lacquers and varnishes
  • Manufacture of Marker Pen Inks

C.I.50420
Molecular Weight: 202.21 g/mol
Maximum Absorption: 565nm
Solubility: Soluble in water

Cas Number: 8005-03-6

HS Code / Commodity Code: 32129000

Hazard Phrases: H0001

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