diff --git a/Resources/Prototypes/Recipes/Reactions/chemicals.yml b/Resources/Prototypes/Recipes/Reactions/chemicals.yml
index 6747a37846ac53..89344fbd91a40a 100644
--- a/Resources/Prototypes/Recipes/Reactions/chemicals.yml
+++ b/Resources/Prototypes/Recipes/Reactions/chemicals.yml
@@ -293,13 +293,15 @@
      amount: 1
   products:
     Desoxyephedrine: 4 #I kinda remember having to heat this up, and if you heated it up too much, it went boom, I can't remember the specific values tho.
-  effects:
+  # SS220 add oxygen gas for reaction Desoxyephedrine begin
+    effects:
     - !type:CreateGas
       gas: Oxygen
     - !type:PopupMessage
       visualType: Medium
       messages: [ "oxygen-created" ]
       type: Pvs
+  # SS220 add oxygen gas for reaction Desoxyephedrine end
 
 - type: reaction
   id: Stimulants