The chemistry of synthetic drugs / by Percy May.

  • May, Percy, 1886-
Date:
1911
Catalogue details

Licence: In copyright

Credit: The chemistry of synthetic drugs / by Percy May. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    19/280 (page 13)
    GLOSSARY OF CERTAIN CHEMICAL AND MEDICAL TERMS Medical. Analgesic = diminishing pain. Antipyretic = causing fall of body-temperature in fever. Hypnotic = sleep producing. Narcotic — producing marked diminution of mental activity tending to un- consciousness. Pressor = causing rise of arterial pressure, usually by constriction of the arterioles. Styptic = checking or arresting bleeding. Chemical. Acyl is a term used to denote an acidic organic radicle derived from an organic acid by removal of the hydroxyl (OH) group from the groups, (—GO—OH) or (—S02—OH), containing the acidic hydrogen. E.g. Acetyl, CH3. 00—, from acetic acid, CH3. CO. OH. Benzoyl, C9H5. CO—, from benzoic acid, C„H5. CO. OH. Lactyl, CH3. CH(OH). CO—, from lactic acid CH3. CH(OH). CO . OH. /CO— /CO.OH . Phthalyl, C6H4< , from phthalic acid, C6H4< \C0— \00. OH Benzene-sulphonyl, C„Hs.SO„—, from benzene-sulphonic acid, CaH5. S02. OH. Alkamine esters have the general formula R—CO—0—[CR,R2]a:—NR3R4 ; they are formed by the esterification of an acid with an alcohol containing an amino-group. Alhyl is a term used to denote an organic radicle derived from a simple aliphatic hydrocarbon by removal of one hydrogen atom. E.g. Methyl, 0H3, from methane, CH4; ethyl, C2Ha, from ethane, C2H9. Aryl is a term used to denote an organic radicle derived from an aromatic hydrocarbon, by the removal of a hydrogen atom from the aromatic nucleus. E.g. Phenyl, C„H5—, from benzene, ^H,; tolyl, CH,. C,H4—, from toluene, CH3. C4HS. Groups such as benzyl, C,H5. CH2—, obtained by removal of a hydrogen atom from the side-chain, must be regarded as mixed alkyl and aryl groups.