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Sudan III C.I.26100

Price: £11.95
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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

It is used to colour nonpolar substances such as oils, fats, waxes, greases, various hydrocarbon products. It is a replacement for Solvent Red 26 with better solubility in hydrocarbons. The IRS requires a concentration spectrally equivalent to at least 3.9 pounds of Solvent Red 26 per thousand barrels of fuel" (11.1 mg/l); the concentrations required by EPA are roughly 5 times lower.

Sudan III is a red brown powder and is often used to demonstrate triglycerides in frozen sections. It is also known as Solvent Red 23.

C.I. 26100

  • Dye Content: >85%
  • Molecular Formula: C22H16N4O
  • Molecular Weight: 352.39 g/mol
  • Melting Point: 199 °C (lit.)

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 85-86-9
Einecs No: 201-638-4

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We can also accept a bank transfer (UK Only)

Source Chemicals Ltd