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We do not offer international shipping to countries within the European Union

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

Orcein Synthetic

Price: £44.95
Stock Availability:

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Stock Availability
On Shelf - Approx. UK delivery date: Thursday the 18th 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
  • Staining of Elastin in Tissue
  • Determination of chromosones

Orcein is a red dye used in microscopy as a mordant for the staining of flagella, as well as for detecting elastic tissue in sputum,. Is also used for determination o plant or animal chromosomes.

  • Molecular Formula C28H24N2O7
  • Molecular Weight 500.51 g/mol
  • Absorption Ratio: 1.02 (0.98-1.15)
  • Wavelength of Max Absorption (NaOH 0.01mol/L): 579hm (575-580nm)
  • Absorbance Absorptivity A 1%/1cm, λ max: 331 (270-330)
  • Loss on Drying (@110 deg C): <2.0%

Hazard Phrases: Harmful if swallowed.

Prec Phrases: Wash hands thoroughly after handling. Do no eat, drink or smoke when using this product. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Dispose of contents/container to

Harmful CLP Image

Cas No: 1400-62-0
Einecs No: 215-750-6

Payment Methods

We can also accept a bank transfer (UK Only)

Source Chemicals Ltd