A proportionality constant in rate equations.
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5-BETA-ANDROSTAN-17-BETA-OL
benzenediazonium chloride
2-BROMO-3-CHLORO-1-PROPENE
(2,2,2-trifluoroethyl)dioxidanyl
5-[ISOCYANO-(TOLUENE-4-SULFONYL)-METHYL]-BENZO[1,3]DIOXOLE
trans-α,β-dideuteriostyrene