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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

Martius Yellow Powder

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Price: £7.95

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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

Applications

Biological Stain
Examination of Fibrin

General

Martius yellow stains have been used to stain erythrocytes yellow so that they contrast well with red fibrin in trichrome staining methods such as Lendrum's Picro Mallory and Slidder's Martius, Scarlet and Blue (MSB). It can be combined with other small molecular weight yellow dyes to increase stain intensity

Specification

C.I. 10315
Molecular Formula: C₁₀H₆N₂O₅
Molecular Weight: 234.17
Melting Point: 140°C
Loss on Drying: <8%
Solubility: Soluble in Ethanol/Methanol

UV-Vis

E(370+ 3)nm = 6,000 minimum (C = 0.01 g/l in Methanol)
E(293+ 3)nm = 9,000 minimum
E(249+ 3)nm = 14,000 minimum

Hazards

Hazard Phrases: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Prec Phrases: Avoid breathing dust/fume/gas/mist/vapours/spray. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Harmful CLP Image