137472-91-4

Upstream product

• 91-02-1 phenyl(pyridin-2-yl)methanone 
• 109-72-8 n-butyllithium 
• 67820-74-0 2,2,6,6-tetramethylbenzo[1,2-d;4,5-d¹]bis[1,3]dioxole 

Relevant academic research and scientific papers

Triarylmethyl radicals and the use of inert carbon free radicals in MRI

A radical compound of formula Ia wherein: each Ar12, which may be the same or different, represents a 6-membered carbocyclic, at least one group Ar12 being a group Ar1 ; each group Ar1 represents a 6-membered ring optionally substituted at the or any ortho carbon by a group R1, R2, R3 or R4, at the or any meta carbon by a group R2 or R3, and at any para carbon by a group R1, R2, R3 or R4, with the proviso that no more than two ring carbons are unsubstituted; each of R1, R2, R3 or R4, which may be the same or different, independently represents a group of formula --M, --XM, --XAr2 or --Ar2 ; M represents a water solubilizing group, each group X, which may be the same or different, represents an oxygen or sulphur atom or a NH or CH2 group.