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Janus Green B C.I. 11050

Price: £17.09
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Stock Availability
On Shelf - Approx. UK delivery date: Wednesday the 01st October 2025*
In bulk stock - ships within 10 - 12 Working Days (Excluding weekends and public holidays)
4 to 6 weeks approx. (Not guaranteed)
UK Shipping

Unfortunately, we are not currently accepting orders for Northern Ireland.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed
  • Biological Stain
  • Supravital Stain
  • Indicator

Janus Green B is a basic dye and vital stain used in histology. It is also used to stain mitochondria supravitally.

The indicator Janus Green B changes colour according to the amount of oxygen present. When oxygen is present, the indicator oxidizes to a blue colour. In the absence of oxygen, the indicator is reduced and changes to a pink colour.

  • C.I. 11050
  • Molecular Formula: C30H31ClN6
  • Molecular Weight: 511.07 g/mol
  • Absorption Wavelength (E1% in 1cmcell,water): 655-662nm
  • Absorptivity (E1%in1cm cell,IMS/Water 50:50): >600
  • Loss on drying: <5%

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 2869-83-2
Einecs No: 220-695-6

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Source Chemicals Ltd