Staining Agents for EM

Uranyless is a non-radioactive staining reagent as alternative to uranyl acetate. An optimized lanthanide Mix allows fast staining times. Uranyless is suitable for classical and negative staining procedures. The 30ml dispenser bottle is sufficient for staining of up to 1500 TEM grids.

UranyLess in 30% Ethanol is recommended for dense and lipid-rich tissue which is difficult to stain.
UranyLess in Acetone is used for contrasting cryo-fixed tissue during freeze substitution.

Recommended for use with Lead Citrate (#DM22410).

We give you a round of extra strong contrast! 20% discount on UranyLess until 12.04.2025

Oolong Tea Extract (OTE) is a non-toxic and non-radioactive stain for electron microscopy. It is effective for fibrous connective tissues. OTE acts as a Tannin which allows complete post-stain lead citrate mordanting and gives satisfactory results. Powder is ideal for longer storage.

Lead Citrate is a commonly used metal stain for ultra-thin sections for electron microscopy. The Lead Citrate – Ready to Use Solution is ideal as counterstain for samples stained with UranyLess to enhance the contrast. The 3% solution is provided in a 30ml airless dispenser bottle and syringe.

Recommended for use with UranyLess (#DM22409).

*** Only available for customers in Germany ***

Lead citrate is used as enhancer for heavy metal staining in electron microscopy. It binds to osmium and uranyl acetate and thereby enhances the contrast of several cellular structures. Due to its high reactivity with CO₂ care has to be taken for the preparation of solutions and during usage.

Permanently reduced price!

Osmiophilic reagent. With the Thiocarbohydrazide it´s possible to enhance the contrast of all osmophilic components of the cell, especially lipids, which hold the most osmium.

An indefinite shelf life due to a special purification process.

H₂NNHCSNHNH₂ / m.p. 171°C (decomposed)