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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

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Price: £44.95

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Stock Availability

On Shelf - Approx. UK delivery date: Thursday the 09th 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, Jersey and Guernsey.

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

Applications

Biological dye
Staining of Elastin in Tissue
Determination of chromosones

General

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.

Specification

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%

Hazards

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