Disinfectant Concentrations, Contact Times, and Use Settings for Products Effective against Coronavirus SARS-CoV-2 This table provides disinfectant concentrations, contact times, and use settings for EPA's List N, which covers antimicrobial products effective against SARS-CoV-2 but does not specify disinfectant concentrations. Our list will help you ensure you're using an effective disinfectant at a sufficient concentration and contact time to kill SARS-CoV-2 in appropriate settings. This table accompanies ECRI's article "Disinfectant Concentrations, Contact Times, and Use Settings for EPA's List of Products Effective against Coronavirus SARS-CoV-2, the Cause of COVID-19," available at http://ly.ecri.org/epalist. It was last updated on June 2, 2021. The Last Updated column, below, refers to the date when ECRI last reviewed EPA’s information for the product listed. EPA Reg. Primary Registered Active Disinfectant Disinfectant Disinfectant Healthcare Institutional Home Last No. Product Name Concentration Contact Time Use Use Use Updated (by weight) (min) 10190-14 Penetone XF-7117 n-Alkyl (50% C14, 40% C12, 4.34% 10 No Yes No November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 3.25% ammonium chloride Didecyl dimethyl ammonium 1.63% chloride Dioctyl dimethyl ammonium 1.63% chloride 10324-105 Maquat 128 PD n-Alkyl (60% C14, 30% C16, 4.50% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 4.50% dimethyl ethylbenzyl ammonium chloride 10324-108 Maquat 256-MN n-Alkyl (50% C14, 40% C12, 9.00% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 6.74% ammonium chloride Didecyl dimethyl ammonium 3.37% chloride Dioctyl dimethyl ammonium 3.37% chloride 10324-112 Maquat 128-MN n-Alkyl (50% C14, 40% C12, 4.50% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 3.38% ammonium chloride Didecyl dimethyl ammonium 1.68% chloride Dioctyl dimethyl ammonium 1.68% chloride 10324-113 Maquat 64-MN n-Alkyl (50% C14, 40% C12, 2.25% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 1.69% ammonium chloride Didecyl dimethyl ammonium 0.84% chloride Dioctyl dimethyl ammonium 0.84% chloride 10324-114 Maquat 32-MN n-Alkyl (50% C14, 40% C12, 1.13% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 0.84% ammonium chloride Didecyl dimethyl ammonium 0.42% chloride Dioctyl dimethyl ammonium 0.42% chloride 10324-115 Maquat 750-M n-Alkyl (50% C14, 40% C12, 20.00% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 15.00% ammonium chloride Didecyl dimethyl ammonium 7.50% chloride Dioctyl dimethyl ammonium 7.50% chloride ©ECRI 2021 1 EPA Reg. Primary Registered Active Disinfectant Disinfectant Disinfectant Healthcare Institutional Home Last No. Product Name Concentration Contact Time Use Use Use Updated (by weight) (min) 10324-117 Maquat 710-M n-Alkyl (50% C14, 40% C12, 4.00% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 3.00% ammonium chloride Didecyl dimethyl ammonium 1.50% chloride Dioctyl dimethyl ammonium 1.50% chloride 10324-140 Maquat MQ2525M-CPV n-Alkyl (60% C14, 30% C16, 1.68% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 1.68% dimethyl ethylbenzyl ammonium chloride 10324-141 Maquat 256-NHQ Didecyl dimethyl ammonium 10.14% 10 Yes Yes Yes November chloride 2020 n-Alkyl (50% C14, 40% C12, 6.76% 10% C16) dimethyl benzyl ammonium chloride 10324-142 Maquat MQ2525M-14 n-Alkyl (60% C14, 30% C16, 7.04% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 7.04% dimethyl ethylbenzyl ammonium chloride 10324-154 Maquat 64-NHQ Didecyl dimethyl ammonium 2.54% 10 Yes Yes Yes November chloride 2020 n-Alkyl (50% C14, 40% C12, 1.69% 10% C16) dimethyl benzyl ammonium chloride 10324-155 Maquat 128-NHQ Didecyl dimethyl ammonium 5.07% 10 Yes Yes Yes November chloride 2020 n-Alkyl (50% C14, 40% C12, 3.38% 10% C16) dimethyl benzyl ammonium chloride 10324-156 Maquat 512-NHQ Didecyl dimethyl ammonium 20.28% 10 Yes Yes Yes November chloride 2020 n-Alkyl (50% C14, 40% C12, 13.52% 10% C16) dimethyl benzyl ammonium chloride 10324-157 Maquat 32-NHQ Didecyl dimethyl ammonium 1.27% 10 Yes Yes Yes November chloride 2020 n-Alkyl (50% C14, 40% C12, 0.85% 10% C16) dimethyl benzyl ammonium chloride 10324-164 Maquat 256 PD n-Alkyl (60% C14, 30% C16, 6.25% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 6.25% dimethyl ethylbenzyl ammonium chloride 10324-166 Maquat 32 n-Alkyl (60% C14, 30% C16, 0.78% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 0.78% dimethyl ethylbenzyl ammonium chloride 10324-167 Maquat 32 PD n-Alkyl (60% C14, 30% C16, 0.78% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride ©ECRI 2021 2 EPA Reg. Primary Registered Active Disinfectant Disinfectant Disinfectant Healthcare Institutional Home Last No. Product Name Concentration Contact Time Use Use Use Updated (by weight) (min) n-Alkyl (68% C12, 32% C14) 0.78% dimethyl ethylbenzyl ammonium chloride 10324-177 Maquat 705-M n-Alkyl (50% C14, 40% C12, 2.00% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 1.50% ammonium chloride Didecyl dimethyl ammonium 0.75% chloride Dioctyl dimethyl ammonium 0.75% chloride 10324-194 Maquat 2420-10 Didecyl dimethyl ammonium 6.00% 10 Yes Yes Yes November chloride 2020 n-Alkyl (50% C14, 40% C12, 4.00% 10% C16) dimethyl benzyl ammonium chloride 10324-198 Maquat 702.5-M n-Alkyl (50% C14, 40% C12, 1.00% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 0.75% ammonium chloride Didecyl dimethyl ammonium 0.375% chloride Dioctyl dimethyl ammonium 0.375% chloride 10324-214 Maguard 5626 Hydrogen peroxide 27.3% 2 Yes Yes Yes November Peroxyacetic acid 5.9% 2020 10324-230 Maguard 1522 Hydrogen peroxide 22.00% 1 Yes Yes Yes November Peroxyacetic acid 15.00% 2020 10324-57 Maquat 42 n-Alkyl (60% C14, 30% C16, 1.68% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 1.68% dimethyl ethylbenzyl ammonium chloride 10324-58 Maquat 128 n-Alkyl (60% C14, 30% C16, 4.50% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 4.50% dimethyl ethylbenzyl ammonium chloride 10324-59 Maquat 64 n-Alkyl (60% C14, 30% C16, 2.25% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 2.25% dimethyl ethylbenzyl ammonium chloride 10324-63 Maquat 10 n-Alkyl (60% C14, 30% C16, 5.00% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 5.00% dimethyl ethylbenzyl ammonium chloride 10324-71 Maquat 280 n-Alkyl (60% C14, 30% C16, 0.80% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 0.80% dimethyl ethylbenzyl ammonium chloride 10324-72 Maquat 615-HD n-Alkyl (50% C14, 40% C12, 8.68% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride ©ECRI 2021 3 EPA Reg. Primary Registered Active Disinfectant Disinfectant Disinfectant Healthcare Institutional Home Last No. Product Name Concentration Contact Time Use Use Use Updated (by weight) (min) Octyl decyl dimethyl 6.50% ammonium chloride Didecyl dimethyl ammonium 3.26% chloride Dioctyl dimethyl ammonium 3.26% chloride 10324-80 Maquat 5.5-M n-Alkyl (50% C14, 40% C12, 2.20% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 1.64% ammonium chloride Didecyl dimethyl ammonium 0.83% chloride Dioctyl dimethyl ammonium 0.83% chloride 10324-81 Maquat 7.5-M n-Alkyl (50% C14, 40% C12, 3.00% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 2.30% ammonium chloride Didecyl dimethyl ammonium 1.10% chloride Dioctyl dimethyl ammonium 1.10% chloride 10324-85 Maquat 86-M n-Alkyl (50% C14, 40% C12, 0.034% 10 Yes Yes Yes November 10% C16) dimethyl benzyl 2020 ammonium chloride Octyl decyl dimethyl 0.026% ammonium chloride Didecyl dimethyl ammonium 0.013% chloride Didecyl dimethyl ammonium 0.013% chloride 10324-93 Maquat 64-PD n-Alkyl (60% C14, 30% C16, 2.25% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 2.25% dimethyl ethylbenzyl ammonium chloride 10324-94 Maquat 20-M n-Alkyl (60% C14, 30% C16, 10.00% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 10.00% dimethyl ethylbenzyl ammonium chloride 10324-96 Maquat 50DS n-Alkyl (60% C14, 30% C16, 25.00% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 25.00% dimethyl ethylbenzyl ammonium chloride 10324-99 Maquat 10-PD n-Alkyl (60% C14, 30% C16, 5.00% 10 Yes Yes Yes November 5% C12, 5% C18) dimethyl 2020 benzyl ammonium chloride n-Alkyl (68% C12, 32% C14) 5.00% dimethyl ethylbenzyl ammonium chloride 1043-119 Spor-Klenz Ready to Use Hydrogen peroxide 1.00% 10 No Yes No November Peroxyacetic acid 0.08% 2020 1043-124 HASTe-SSD-Component B Hydrogen peroxide 1.00% 1 Yes No No May 2021 1043-125 HASTe-SSD-Component A Tetraacetyl ethylenediamine 61.6% 1 Yes No No May 2021 1043-127 LpH III se Phenolic o-Benzyl-para-chlorophenol 13.00% 10 Yes No No May 2021 Disinfectant o-Phenylphenol 6.00% ©ECRI 2021 4 EPA Reg.