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Chemical name:

[1,3-Bis(2,6-diisopropylphenyl)-2-imidazolidinylidene]{2-[(E)-({2-[methylthio-κS]phenyl}imino- κN)methyl]phenoxido-κO}[2-(oxido-κO)benzylidene-κC]ruthenium(II)

Product number: AS2151

CAS number: 2586056-16-6

Patent number: PCT/IB2022/050893

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Latent catalyst for ROMP activated by dry hydrogen chloride.

  • excellent latency and shelf life – solutions of PolCat (20 – 200 mol ppm) in monomers (DCPD, norbornene and their derivatives)  can be stored at room temperature for 3 - 6 months 
  • high activity after activation – short working time , 1 – 5 s 
  • usually used in two formulations system – PolCat in monomer is mixed with dry HCl in monomer in the ratio of 1:1 – 10:1, v/v 

Chemical properties

Chemical formula:


Molecular weight:

839.10 g/mol

Physical state:



brown or black

Storage information

Long-term storage (>1 week):

Store under inert gas in a cold place (recommended temp. 2 - 8 °C).

Short-term storage (<1 week):

Store under inert gas at ambient temperature.

Any questions about product?

Cengiz Azap, PhD
Chief Commercial Officer
Tel.: (+49) 176 8142 0090