Reacts specifically and rapidly with thiols to form mixed disulfides. Used for probing the structures of a number of receptor and ion channel proteins.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statements
P261: Avoid breathing {{{0|||message=<specify applicable conditions>|||default=dust/fume/gas/mist/vapours/spray|||filter=(_)?P261_INHAL_CONDITION_.+}}}.
P271: Use only outdoors or in a well-ventilated area.
P280: Wear {{{0|||message=<specify protection eq: hazard.P261: Avoid breathing {{{0|||message=<specify applicable conditions>|||default=dust/fume/gas/mist/vapours/spray|||filter=(_)?P261_INHAL_CONDITION_.+}}}.
P271: Use only outdoors or in a well-ventilated area.
P280: Wear {{{0|||message=<specify protection eq
