Cinmethylin 

Cinmethylin is a herbicide. Cinmethylin inhibits plant fatty acid biosynthesis. Cinmethylin reduces the emergence rate and above-ground biomass of rigid ryegrass. Cinmethylin kills weeds by inhibiting cell division at root meristems. Cinmethylin exhibits activity against paddy field weeds including Echinochloa crus-galli (L.) var. formosensis and Scirpus juncoides var. ohwianus. Cinmethylin is applicable to agricultural herbicide research^[1][2].

Cinmethylin (12-600 g ha^-1) selectively controls herbicide-susceptible and multiple-resistant rigid ryegrass populations (LD₅₀ values 20-165 g ha^-1)^[1].
Cinmethylin (375 g ha⁻¹) effectively controls 130 field-collected rigid ryegrass populations, including trifluralin-resistant populations, with a median plant survival rate of 0%^[1].
Cinmethylin (188-400 g ha⁻¹) selectively controls rigid ryegrass (S biotype)^[1].
Tolerance of wheat to Cinmethylin (12-600 g ha^-1; 28 days after treatment) is mediated by cytochrome P450 activity^[1].
Cinmethylin (2.4-300 g a.i./hectare; applied once at 7 days after sowing) exhibits potent herbicidal activity against barnyardgrass (Echinochloa crus-galli (L.) var. formosensis) and bulrush (Scirpus juncoides var. ohwianus); when applied pre-emergence or in the early post-emergence stage, doses ≥75 g a.i./hectare achieve complete control of both weed species; in contrast, all tested doses achieve complete control of ECHCS^[2] when applied pre-emergence.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

274.40

C₁₈H₂₆O₂

87818-31-3

C(C)(C)[C@@]12C[C@@H](OCC3=C(C)C=CC=C3)[C@@](C)(O1)CC2

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Busi R, et al. Cinmethylin controls multiple herbicide-resistant Lolium rigidum and its wheat selectivity is P450-based. Pest Manag Sci. 2020;76(8):2601-2608.

  [2]. Ogawa N, et al. Synthesis and herbicidal activity of optically active cinmethylin, its enantiomer, and C3-substituted cinmethylin analogs. J Pestic Sci. 2023;48(1):11-16.