mesylate

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mes·y·late

 (mĕs′ə-lāt′)
n.
A salt, ester, or anion of methanesulfonic acid. Also called methanesulfonate.

[me(thane)s(ulfonic acid) + -yl + -ate.]
References in periodicals archive ?
With this background, the substitution of the C3-OH of (2R,3S) 5,7,3',4'-tetramethoxyflavan-3-ol (catechin) 8 and (2R,3R) 5,7,3',4'-tetramethoxyflavan-3-ol (epicatechin) 9 with a good leaving group, such as a tosyl or mesyl group, has been hypothesized to synthesize a range of flavonoids and optically active substituted flav-3-enes.