WAcetic anhydride
WAcrolein
WAcryloyl chloride
WAdamsite
WAllyl isothiocyanate
WBear spray
WBromoacetone
WCacodyl cyanide
WChloroacetone
WChloroacetophenone oxime
WChloromethyl chloroformate
WChlorosulfuric acid
WCNS (chemical weapon)
WCR gas
WCrotonaldehyde
WCS gas
WCS gas (data page)
WEthyl acrylate
WEthyl bromoacetate
WEthyl cyanoacrylate
WEthyl iodoacetate
WFluoroacetone
WIodoacetone
WMethyl cyanoacrylate
WMethyl isothiocyanate
W4-Nonanoylmorpholine
WPepper-spray projectile
WPhenacyl bromide
WPhenacyl chloride
WPhenylcarbylamine chloride
WPropionic anhydride
WSyn-Propanethial-S-oxide
WTear gas
WThionyl chloride
WThiophosgene