Highly Toxic Reagents

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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
Reagent Use often Use sometimes Use almost never I use this...
Organomercury compounds008 often sometimes almost never
trimethylsilyl cyanide008 often sometimes almost never
mercuric chloride209 often sometimes almost never
diepoxybutane007 often sometimes almost never
acridine007 often sometimes almost never
tetraazido-pentaerythritol017 often sometimes almost never
oxalonitrile007 often sometimes almost never
ethylene oxide007 often sometimes almost never
hexafluoro-2,4-pentanedione007 often sometimes almost never
hydrogen selenide007 often sometimes almost never
thiophosgene016 often sometimes almost never
chloroacetaldehyde016 often sometimes almost never
MOM-Cl (methoxymethyl chloride)026 often sometimes almost never
hydrazoic acid006 often sometimes almost never
trimethyltin hydroxide016 often sometimes almost never
acrylonitrile117 often sometimes almost never
dimethylmercury016 often sometimes almost never
hexamethylditin016 often sometimes almost never
ethidium bromide137 often sometimes almost never
cyanogen bromide016 often sometimes almost never
white phosphorus016 often sometimes almost never
2-ethylpyridine016 often sometimes almost never
tetramethyl tin016 often sometimes almost never
dibromodifluorometahne016 often sometimes almost never
tributyltin choride016 often sometimes almost never
fluoroacetic acid126 often sometimes almost never
hydrofluoric acid (HF)025 often sometimes almost never
chromium trioxide015 often sometimes almost never
perchloric acid025 often sometimes almost never
potassium cyanide035 often sometimes almost never
carbon disulfide035 often sometimes almost never
phosgene025 often sometimes almost never
chloroacetone025 often sometimes almost never
dimethyl sulfate025 often sometimes almost never
methyl isocyanate025 often sometimes almost never
chromyl chloride025 often sometimes almost never
chromic acid reagent025 often sometimes almost never
Magic methyl (methylflurosulfonate)025 often sometimes almost never
thallium(III) oxide116 often sometimes almost never
BOM-Cl (benzyloxymethyl chloride)015 often sometimes almost never
ozone025 often sometimes almost never
thiophenol024 often sometimes almost never
hydrogen cyanide125 often sometimes almost never
carbon monoxide034 often sometimes almost never
Dinitrophenylhydrazones216 often sometimes almost never
HBTU 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate125 often sometimes almost never
diazomethane024 often sometimes almost never
Ethyl bromoacetate044 often sometimes almost never
methyl vinyl ketone135 often sometimes almost never
boron tribromide155 often sometimes almost never
Aromatic amines with a blocked para position, i.e. 2-aminonaphthalene (kidney cancer)135 often sometimes almost never
hydrogen sulfide125 often sometimes almost never
hexamethylphosphoramide (HMPA)124 often sometimes almost never
sodium cyanide043 often sometimes almost never
sulfur trioxide124 often sometimes almost never
selenium dioxide124 often sometimes almost never
benzyl chloride133 often sometimes almost never
methyl iodide153 often sometimes almost never
carbon tetrachloride143 often sometimes almost never
NaCN244 often sometimes almost never
sodium iodide133 often sometimes almost never
Thiols (all of them)214 often sometimes almost never
Bromine243 often sometimes almost never
AIBN (Azobisisobutyronitrile) (heating produces deadly tetramethylsuccinonitrile)243 often sometimes almost never
osmium tetroxide142 often sometimes almost never
phosphorus oxychloride334 often sometimes almost never
benzene121 often sometimes almost never
thionyl chloride262 often sometimes almost never
Aqua Regia (HCl and HNO3)252 often sometimes almost never
DEAD (diethylazodicarboxylate)212 often sometimes almost never
pyridine463 often sometimes almost never
borane413 often sometimes almost never
acetonitrile200 often sometimes almost never
BOC2O (di-t-butyl-dicarbonate)643 often sometimes almost never
tributyltin hydride542 often sometimes almost never
Water (powerful drowning agent)1511 often sometimes almost never