Orange G excellent quality manufacturer,exporter and supplier. Orange G is a synthetic azo dye used in histology in many staining formulations. It usually comes as a disodium salt. It has the appearance of orange crystals or powder. The main use of Orange G is in the OG-6 Papanicolaou stain, to stain keratin, however it is also a major component of the Alexander test for pollen staining. It is often combined with other yellow dyes and used to stain erythrocytes in the trichrome methods.

Technical Specifications:
C.A.S. No. 1936-15-8
CI NO. 16230
M.F. C16H10N2Na2O7S2
M.W. 452.38gm/mole


Dye Content (by Spectrophotometry) >90%
Solubility 0.1 %(Dist. water) Clear solution
Absorption Maximum (Dist. water) ?max 476-481nm
Absorptivity (A1%/1cm in water, at ?max) 400-500
Loss on drying (110°C) <10%
Suitability for microscopy Passes test

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