Semtex

A plastic explosive. There are two common varities:

	Semtex H	Semtex A
PETN?	49.8%	94.3%
RDX	50.2%	5.7%
Dye	Sudan I	Sudan IV
Antioxidant	N-phenyl-2-naphthalamine	same
Plasticizer	n-octyl phthalate butyl citrate	same
Binder	styrene-butadiene rubber	same

Both have ethylene glycol dinitrate added to produce a distinctive odour to aid detection.