The Tour of Collective Wisdom presents:
Highly Toxic Reagents


If possible, avoid using these reagents. If not possible, take every precaution to avoid exposure. Not all reagents to avoid are on this list.

Highly toxic reagent:
I often use this I sometimes use this I almost never use this
Verification:
Reagent Use often Use sometimes Use almost never I use this...
thallium(III) oxide114126 often sometimes almost never
phosgene2940142 often sometimes almost never
tetraazido-pentaerythritol104122 often sometimes almost never
oxalonitrile84114 often sometimes almost never
hydrazoic acid413108 often sometimes almost never
dibromodifluorometahne87111 often sometimes almost never
chloroacetaldehyde98112 often sometimes almost never
thiophosgene1514117 often sometimes almost never
ethylene oxide1615117 often sometimes almost never
Organomercury compounds1312113 often sometimes almost never
hydrogen cyanide1017109 often sometimes almost never
acridine95108 often sometimes almost never
white phosphorus1010108 often sometimes almost never
dimethylmercury144110 often sometimes almost never
Magic methyl (methylflurosulfonate)1111105 often sometimes almost never
2-ethylpyridine157109 often sometimes almost never
MOM-Cl (methoxymethyl chloride)4445136 often sometimes almost never
chromyl chloride1111102 often sometimes almost never
methyl isocyanate1010100 often sometimes almost never
mercuric chloride1912107 often sometimes almost never
hexafluoro-2,4-pentanedione166103 often sometimes almost never
trimethyltin hydroxide145100 often sometimes almost never
cyanogen bromide151699 often sometimes almost never
hydrogen selenide203103 often sometimes almost never
diepoxybutane194100 often sometimes almost never
thioacetone3484 often sometimes almost never
ethidium bromide182298 often sometimes almost never
selenium dioxide102589 often sometimes almost never
Dinitrophenylhydrazones151593 often sometimes almost never
hexamethylditin247101 often sometimes almost never
lead tetraacetate7784 often sometimes almost never
trimethylsilyl cyanide182194 often sometimes almost never
tetramethyl tin211296 often sometimes almost never
tributyltin choride191893 often sometimes almost never
sulfur trioxide181491 often sometimes almost never
fluorine18689 often sometimes almost never
tellurium14483 often sometimes almost never
hydrogen sulfide222090 often sometimes almost never
hydrofluoric acid (HF)173785 often sometimes almost never
chromium trioxide122980 often sometimes almost never
diazomethane242190 often sometimes almost never
fluoroacetic acid201885 often sometimes almost never
ozone282191 often sometimes almost never
acrylonitrile241787 often sometimes almost never
perchloric acid173280 often sometimes almost never
2-methoxyethanol91472 often sometimes almost never
chloroacetone221784 often sometimes almost never
hexamethylphosphoramide (HMPA)144675 often sometimes almost never
acrylamide gels151376 often sometimes almost never
NO gas121072 often sometimes almost never
AgCN5765 often sometimes almost never
Ethyl bromoacetate183677 often sometimes almost never
osmium tetroxide223281 often sometimes almost never
dimethyl sulfate242480 often sometimes almost never
NaCN204276 often sometimes almost never
Mustard compounds6762 often sometimes almost never
carbon monoxide262682 often sometimes almost never
nitrosobenzene131368 often sometimes almost never
carbon disulfide213675 often sometimes almost never
potassium cyanide194472 often sometimes almost never
BOM-Cl (benzyloxymethyl chloride)301983 often sometimes almost never
indole17969 often sometimes almost never
dimethyl acetylenedicarboxylate111062 often sometimes almost never
chromic acid reagent242972 often sometimes almost never
thiophenol273575 often sometimes almost never
Aromatic amines with a blocked para position, i.e. 2-aminonaphthalene (kidney cancer)243371 often sometimes almost never
tributyltin hydride302377 often sometimes almost never
nickel tetracarbonyl4351 often sometimes almost never
HBTU 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate362082 often sometimes almost never
methyl vinyl ketone342878 often sometimes almost never
DEAD (diethylazodicarboxylate)284071 often sometimes almost never
thallium sulfate3245 often sometimes almost never
benzyl chloride346376 often sometimes almost never
isopropyl isocyanate3243 often sometimes almost never
sodium cyanide334273 often sometimes almost never
boron tribromide294968 often sometimes almost never
AIBN (Azobisisobutyronitrile) (heating produces deadly tetramethylsuccinonitrile)354471 often sometimes almost never
borane372671 often sometimes almost never
chlorine gas5838 often sometimes almost never
phosphorus oxychloride334265 often sometimes almost never
KCN212751 often sometimes almost never
Sodium Nitrite93238 often sometimes almost never
trimethyltin chloride6935 often sometimes almost never
diethyl chlorophosphate10538 often sometimes almost never
carbon tetrachloride307653 often sometimes almost never
Thiols (all of them)384058 often sometimes almost never
potassium cyanide81124 often sometimes almost never
silver nitrate203936 often sometimes almost never
tin(IV) chloride0112 often sometimes almost never
diethyl chlorophosphate1210 often sometimes almost never
arsine137 often sometimes almost never
Chlorine207 often sometimes almost never
2-methylaziridine105 often sometimes almost never
VX406 often sometimes almost never
thiophosgene012 often sometimes almost never
BOC2O (di-t-butyl-dicarbonate)634261 often sometimes almost never
piperidine302028 often sometimes almost never
thionyl chloride635656 often sometimes almost never
Pyridine11172 often sometimes almost never
Bromine617650 often sometimes almost never
Aqua Regia (HCl and HNO3)615748 often sometimes almost never
Thionyl Chloride342218 often sometimes almost never
sodium iodide585542 often sometimes almost never
methyl iodide727543 often sometimes almost never
benzene9811245 often sometimes almost never
BuLi823217 often sometimes almost never
ethanol74102 often sometimes almost never
pyridine1158323 often sometimes almost never
air1321714 often sometimes almost never
Methanol154264 often sometimes almost never
acetonitrile1924511 often sometimes almost never
Water (powerful drowning agent)2821141 often sometimes almost never
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