Methoxyflurane Hydrogenated ether (ether with one or more hydrogen atoms replaced with a halogen atom). It is a powerful analgesic although is also a respiratory depressant. The use of Penthrane foreshadowed the patient controlled analgesia devices.Empty brown glass bottle with green manufacturer's label, with white writing and a white plastic lid. Green liquid measures have been printed on the side of the bottle.White sticker stuck to manufacturer's label: Expiration Date / Feb. 1, 1976 / Lot 854-1663analgesia, hydrogenated ether, self administration, methoxyflurane, abbott laboratories, penthrane

This vaporiser has a main cylindrical body with a step up to the dial plate with a small red latch to lock dial in to place.On the front of the body sits a square gauge to indicate the level FULL along with a long rectangular shape.There is an Inlet and outlet valve that sits behind the metal dial.There is a manufacturers plate sitting on top of the dial and the inlet/outlet valve. Inscribed on top plate: KEEP UPRIGHT/ PENTEC 2/ WHEN CHARGED •Inscribed on inlet & oulet valve plate: PENTEC 2/ SERIAL NO 252939/ PATENTS PENDING •MADE IN / ENGLAND BY/ CYPRANE LTD / KEIGHLEY •Metal dial has inscribed: OFF/.2 .5 1 1.5 2 Max •Inscribed on front plate in green writing: USE ONLY/ PENTHRANE/ (METHOXYFLURANE)penthrane, vaporizer, anaesthesia, anaesthetic machine