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Fast Green FCF C.I. 42053

Price: £2.92
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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 Dye
  • Protein Stain
  • Quantitative Stain

Fast Green FCF, also called Food green 3, FD&C Green No. 3, Green 1724, Solid Green FCF, and C.I. 42053, is a sea green triarylmethane food dye. Its E number is E143.

Fast Green FCF is recommended as a replacement of Light Green SF yellowish in Masson's trichrome, as its color is more brilliant and less likely to fade. It is used as a quantitative stain for histones at alkaline pH after acid extraction of DNA. It is also used as a protein stain in electrophoresis.

  • C.I.42053
  • Dye Content: >85%
  • Molecular Formula: C37H34N2Na2O10S3
  • Molecular Weight: 808.86 g/mol
  • Insoluble Matter: <0.20%
  • Subsidiary Dyes: <6% (Mass)
  • Lead (Pb): <10mg/Kg
  • Heavy Metals (as Pb): <40mg/Kg
  • Mercury (Hg): <1mg/Kg

Hazard Phrases: Suspected of causing genetic defects .

Prec Phrases: Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Wear protective gloves/protective clothing/eye protection/face protection. IF exposed or concerned: Get medical advice/attention. Store locked up. Dispose of contents/container to

respiratory CLP Image

Cas No: 2353-45-9
Einecs No: 219-091-5

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