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We can only ship non-hazardous products to Rest of World

Erythrosin B C.I. 45430

Price: £5.95
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Stock Availability
On Shelf - Approx. UK delivery date: Monday the 22nd September 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 Dye
  • Cytoplasmic Stain

Commonly used in microscopy. It is a cytoplasmic stain, often used together with a nuclear stain such as haematoxylin or methylene blue.

  • C.I. 45430
  • Dye Content: >80%
  • Molecular Formula: C20H6I4Na2O5
  • Molecular Weight: 879.87 g/mol
  • Water insoluble matter:  < 0.20%
  • Subsidiary dyes:  < 4.00%
  • Tri-Iodoresorcinol:  < 0.20%
  • Inorganic Iodides as Sodium Iodide:  < 0.10%
  • Solubility (10 mg/ml, H2O): Clear, red-orange to red solution
  • Spectroscopy:   ~525 nm
  • Visual Transition Interval:  From pH 0.0 (yellow) To pH 3.5 (fluorescent red)

Hazard Phrases: Harmful if swallowed. May cause long lasting harmful effects to aquatic life.

Prec Phrases: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth.

Harmful CLP Image

Cas No: 16423-68-0
Einecs No: 240-474-8

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We can also accept a bank transfer (UK Only)

Source Chemicals Ltd