Supplementary reactions Species with starting with "J" are surface ice species Species with starting with "K" are bulk ice species Suprathermal Species are denoted with an asterisk "*" Thermal Grain Reactions Reactants | Products | Reference JCH3 JHCOOCH3 JCH4 JCH3OCO A. Kinsuk (Private communication) JCH3 JHCOOCH3 CH4 CH3OCO A. Kinsuk (Private communication) JCH3O JCH3CHO JHCOOCH3 JCH3 A. Kinsuk (Private communication) JCH3O JCH3CHO HCOOCH3 CH3 A. Kinsuk (Private communication) JCH3O JH2CO JHCOOCH3 JH A. Kinsuk (Private communication) JCH3O JH2CO HCOOCH3 H A. Kinsuk (Private communication) JCH3O JHCOOCH3 JCH3OH JCH3OCO A. Kinsuk (Private communication) JCH3O JHCOOCH3 CH3OH CH3OCO A. Kinsuk (Private communication) JCH3O JNH2CHO JHCOOCH3 JNH2 A. Kinsuk (Private communication) JCH3O JNH2CHO HCOOCH3 NH2 A. Kinsuk (Private communication) JH JHCOOCH3 H2 CH3OCO A. Kinsuk (Private communication) JH JHCOOCH3 CH3OH HCO A. Kinsuk (Private communication) JH JHCOOCH3 JCH3OH JHCO A. Kinsuk (Private communication) JH JHCOOCH3 JH2 JCH3OCO A. Kinsuk (Private communication) JH JCH3OCO HCOOCH3 A. Kinsuk (Private communication) JH JCH3OCO JHCOOCH3 A. Kinsuk (Private communication) JHCO JCH3O HCOOCH3 A. Kinsuk (Private communication) JHCO JCH3O JHCOOCH3 A. Kinsuk (Private communication) JNH2 JHCOOCH3 NH3 CH3OCO A. Kinsuk (Private communication) JNH2 JHCOOCH3 JNH3 JCH3OCO A. Kinsuk (Private communication) JOH JHCOOCH3 JHCOOH JCH3O A. Kinsuk (Private communication) JOH JHCOOCH3 JH2O JCH3OCO A. Kinsuk (Private communication) JOH JHCOOCH3 H2O CH3OCO A. Kinsuk (Private communication) JOH JHCOOCH3 HCOOH CH3O A. Kinsuk (Private communication) Reactants | Products | Reference JHCOOCH3 JHCO JCH3O A. Kinsuk (Private communication) JHCOOCH3 JHCO JCH3O A. Kinsuk (Private communication) JHCOOCH3 JCH3OH JCO A. Kinsuk (Private communication) JHCOOCH3 JCH3 JCO2 JH A. Kinsuk (Private communication) JCH3COOH CRP JCH3 JHOCO A. Kinsuk (Private communication) JCH3COOH CRP JCH3CO JOH A. Kinsuk (Private communication) JCH3COOH Photon JCH3CO JOH A. Kinsuk (Private communication) JCH3COOH Photon JCH3 JHOCO A. Kinsuk (Private communication) JCH3 JHOCO CH3COOH A. Kinsuk (Private communication) JCH3 JHOCO JCH3COOH A. Kinsuk (Private communication) JOH JCH3CO JCH3COOH A. Kinsuk (Private communication) JOH JCH3CO CH3COOH A. Kinsuk (Private communication) KCH3 KHOCO KCH3COOH A. Kinsuk (Private communication) KOH KCH3CO KCH3COOH A. Kinsuk (Private communication) KCH3O KCH3CHO KHCOOCH3 KCH3 A. Kinsuk (Private communication) KCH3O KH2CO KHCOOCH3 KH A. Kinsuk (Private communication) KCH3O KNH2CHO KHCOOCH3 KNH2 A. Kinsuk (Private communication) KH KHCOOCH3 KCH3OH KHCO A. Kinsuk (Private communication) KHCO KCH3O KHCOOCH3 A. Kinsuk (Private communication) KOH KHCOOCH3 KHCOOH KCH3O A. Kinsuk (Private communication) JCH3 JHCOOCH3 CH4 CH3 CO2 A. Kinsuk (Private communication) JCH3O HCOOCH3 CH3OH CH3 CO2 A. Kinsuk (Private communication) JH JHCOOCH3 H2 CH3 CO2 A. Kinsuk (Private communication) JH JHCOOCH3 JH2 JCH3 CO2 A. Kinsuk (Private communication) JNH2 JHCOOCH3 NH3 CH3 CO2 A. Kinsuk (Private communication) JNH2 JHCOOCH3 JNH3 JCH3 CO2 A. Kinsuk (Private communication) JOH JHCOOCH3 JH2O JCH3 CO2 A. Kinsuk (Private communication) JOH JHCOOCH3 H2O CH3 CO2 A. Kinsuk (Private communication) JCH3 JHCOOH JCH4 JHOCO A. Kinsuk (Private communication) JCH3 JHCOOH CH4 HOCO A. Kinsuk (Private communication) JCH3O JHCOOH JCH3OH JHOCO A. Kinsuk (Private communication) JCH3O JHCOOH CH3OH HOCO A. Kinsuk (Private communication) Reactants | Products | Reference JH JHOCO HCOOH A. Kinsuk (Private communication) JH JHOCO JHCOOH A. Kinsuk (Private communication) JH JHCOOH HCO H2O A. Kinsuk (Private communication) JH JHCOOH H2 HOCO A. Kinsuk (Private communication) JH JHCOOH JH2 JHOCO A. Kinsuk (Private communication) JH JHCOOH JHCO JH2O A. Kinsuk (Private communication) JNH2 JHCOOH NH3 HOCO A. Kinsuk (Private communication) JNH2 JHCOOH JNH3 JHOCO A. Kinsuk (Private communication) JOH JCH3CHO JHCOOH JCH3 A. Kinsuk (Private communication) JOH JCH3CHO HCOOH CH3 A. Kinsuk (Private communication) JOH JH2CO HCOOH H A. Kinsuk (Private communication) JOH JH2CO JHCOOH JH A. Kinsuk (Private communication) JOH JHCO HCOOH A. Kinsuk (Private communication) JOH JHCO JHCOOH A. Kinsuk (Private communication) JOH JHCOOH H2O HOCO A. Kinsuk (Private communication) JOH JHCOOH JH2O JHOCO A. Kinsuk (Private communication) JOH JNH2CHO HCOOH NH2 A. Kinsuk (Private communication) JOH JNH2CHO JHCOOH JNH2 A. Kinsuk (Private communication) JOH JHCOCHO HCOOH HCO A. Kinsuk (Private communication) JOH JHCOCHO JHCOOH JHCO A. Kinsuk (Private communication) JOH JHCOCH2OH HCOOH CH2OH A. Kinsuk (Private communication) JOH JHCOCH2OH JHCOOH JCH2OH A. Kinsuk (Private communication) JHCOOH JHCO JOH A. Kinsuk (Private communication) JHCOOH JCO2 JH JH A. Kinsuk (Private communication) JHCOOH JHCO JOH A. Kinsuk (Private communication) JHCOOH JCO2 JH JH A. Kinsuk (Private communication) Reactants | Products | Reference JHCOCH2OH JH JH2COCH2OH Fedoseev et al 2015, Barrier height from Fuchs et al 2009 JHCOCH2OH JH H2COCH2OH Fedoseev et al 2015, Barrier height from Fuchs et al 2009 KHCOCH2OH KH KH2COCH2OH Fedoseev et al 2015, Barrier height from Fuchs et al 2009 JH2COCH2OH JH J(CH2OH)2 Fedoseev et al 2015, Barrier height from Fuchs et al 2009 JH2COCH2OH JH (CH2OH)2 Fedoseev et al 2015, Barrier height from Fuchs et al 2009 KH2COCH2OH KH K(CH2OH)2 Fedoseev et al 2015, Barrier height from Fuchs et al 2009 J(CH2OH)2 JH JCH2OH JCH3OH Fedoseev et al 2015, Barrier height from Fuchs et al 2009 J(CH2OH)2 JH CH2OH CH3OH Fedoseev et al 2015, Barrier height from Fuchs et al 2009 K(CH2OH)2 KH KCH2OH KCH3OH Fedoseev et al 2015, Barrier height from Fuchs et al 2009 Thermal Gas-Phase reactions Reactants | Products | Reference HCOOCH3 HCO CH3O A. Kinsuk (Private communication) H3+ HCOOCH3 HCOHOCH3+ H2 A. Kinsuk (Private communication) H3O+ HCOOCH3 HCOHOCH3+ H2O A. Kinsuk (Private communication) HCO+ HCOOCH3 HCOHOCH3+ CO A. Kinsuk (Private communication) He+ HCOOCH3 HOCO+ CH3 He A. Kinsuk (Private communication) H2COHOCH2+ e- HCOOCH3 H A. Kinsuk (Private communication) HCOHOCH3+ e- HCOOCH3 H A. Kinsuk (Private communication) CH3OH2OCH2+e- HCOOCH3 H2 H A. Kinsuk (Private communication) HCOOCH3 COOCH4+ e- A. Kinsuk (Private communication) HCOOCH3 HCO CH3O A. Kinsuk (Private communication) He+ CH3OCO CH3O CO+ He A. Kinsuk (Private communication) He+ CH3OCO H2COH+ CO He A. Kinsuk (Private communication) CH3OCO CH3O CO A. Kinsuk (Private communication) H2COH+ H2CO H2COHOCH2+ A. Kinsuk (Private communication) CH3OH2+ H2CO CH3OH2OCH2+ A. Kinsuk (Private communication) CH3CH2OH Cl CH3CHOH HCl Skouteris et al. 2018 CH3CH2OH Cl CH2CH2OH HCl Skouteris et al. 2018 CH3CH2OH OH CH3CHOH H2O Skouteris et al. 2018 CH3CH2OH OH CH2CH2OH H2O Skouteris et al. 2018 CH3CHOH O HCOOH CH3 Skouteris et al. 2018 CH3CHOH O CH3CHO OH Skouteris et al. 2018 CH3CHOH O CH3COOH H Skouteris et al. 2018 CH2CH2OH O HCOCH2OH H Skouteris et al. 2018 CH2CH2OH O H2CO CH2OH Skouteris et al. 2018 HCOCH2OH H3+ HCOCH2OH2+ H2 Skouteris et al. 2018 HCOCH2OH H3O+ HCOCH2OH2+ H2O Skouteris et al. 2018 HCOCH2OH HCO+ HCOCH2OH2+ CO Skouteris et al. 2018 HCOCH2OH He+ HCO+ CH2OH He Skouteris et al. 2018 HCOCH2OH H+ HCO+ CH2OH H Skouteris et al. 2018 CH3COOH HCO+ CH3CO+ CO H2O Skouteris et al. 2018 CH3COOH H3+ CH3CO+ H2 H2O Skouteris et al. 2018 CH3COOH H3O+ CH3CO+ H2O H2O Skouteris et al. 2018 CH3COOH H+ CH3CO+ H2O Skouteris et al. 2018 CH3COOH He+ CH3CO+ OH He Skouteris et al. 2018 CH3CHOH H3+ CH3CH2OH+ H2 Skouteris et al. 2018 CH3CHOH H3O+ CH3CH2OH+ H2O Skouteris et al. 2018 CH3CHOH HCO+ CH3CH2OH+ CO Skouteris et al. 2018 CH3CHOH H+ CH3CHOH+ H Skouteris et al. 2018 CH3CHOH He+ C2H4+ OH He Skouteris et al. 2018 CH2CH2OH H3+ CH3CH2OH+ H2 Skouteris et al. 2018 CH2CH2OH H3O+ CH3CH2OH+ H2O Skouteris et al. 2018 CH2CH2OH HCO+ CH3CH2OH+ CO Skouteris et al. 2018 CH2CH2OH H+ CH3CHOH+ H Skouteris et al. 2018 CH2CH2OH He+ C2H4+ OH He Skouteris et al. 2018 HCOCH2OH2+ e- HCOCH2OH H Skouteris et al. 2018 CH3CHOH+ e- H2CO CH3 Skouteris et al. 2018 CH3CHOH+ e- H H2CO CH2 Skouteris et al. 2018 CH3CHOH+ e- H HCO CH3 Skouteris et al. 2018 CH3CH2OH+ e- H2 H2 H2CCO Skouteris et al. 2018 CH3CH2OH+ e- H2CO CH4 Skouteris et al. 2018 CH3CH2OH+ e- H2 CH3CHO Skouteris et al. 2018 CH3CH2OH+ e- OH C2H5 Skouteris et al. 2018 CH3OH O CH2OH OH KIDA CH3OH O CH3O OH KIDA CH4 O CH3 OH KIDA CH4 O CH2OH H KIDA CH4 O CH3O H KIDA CH2OH H H2 H2CO KIDA CH2OH H OH CH3 KIDA C CH2OH CO CH3 KIDA CH2OH N NH H2CO KIDA CH2OH N H2O HCN KIDA CH3OH CN HCN CH3O KIDA CH3OH CN HCN CH2OH KIDA S CH2OH HS H2CO KIDA S CH2OH OH H2CS KIDA CH3COOH2+ e- CH3 CO H2O A. Kinsuk (Private Communication) CH3COOH2+ e- CH3CO OH H A. Kinsuk (Private Communication) CH3COOH2+ e- H2CCO H2O H A. Kinsuk (Private Communication) CH3COOH2+ e- CH3 HOCO H A. Kinsuk (Private Communication) CH3COOH2+ e- CH3CO H2O A. Kinsuk (Private Communication) CH3COOH2+ e- CH3COOH H A. Kinsuk (Private Communication) H3+ CH3COOH CH3COOH2+ H2 A. Kinsuk (Private Communication) H3O+ CH3COOH CH3COOH2+ H2O A. Kinsuk (Private Communication) HCO+ CH3COOH CH3COOH2+ CO A. Kinsuk (Private Communication) CH3COOH2+ e- CH3 CO OH H A. Kinsuk (Private Communication) HCOCH2OH2+ e- H2CO CH2OH A. Kinsuk (Private Communication) HCOCH2OH CRP HCO CH2OH This Work HCOCH2OH CRP HOCO CH3 This Work H2COCH2OH CRP H2CO CH2OH This Work (CH2OH)2 CRP CH2OH CH2OH This Work