| sulfuric acid esters | Organic esters of sulfuric acid. (12 Dec 1998) |
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| phosphoric acid esters | Organic esters of phosphoric acid. (12 Dec 1998) |
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| Nordhausen sulfuric acid | Sulfuric acid containing sulfurous acid gas in solution. Synonym: fuming sulfuric acid. Origin: named for Nordhausen, a town in Saxony where it was first prepared (05 Mar 2000) |
| sulfuric acid | H2SO4;a colourless, nearly odourless, heavy, oily, corrosive liquid containing 96% of the absolute acid; used occasionally as a caustic. Synonym: oil of vitriol. (05 Mar 2000) |
| fuming sulfuric acid | Sulfuric acid containing sulfurous acid gas in solution. Synonym: fuming sulfuric acid. Origin: named for Nordhausen, a town in Saxony where it was first prepared (05 Mar 2000) |
| Lillie's sulfuric acid Nile blue stain | <technique> A technique for showing fatty acids when present in high concentrations. (05 Mar 2000) |
| cholesterol esters | Fatty acid esters of cholesterol which constitute about two-thirds of the cholesterol in the plasma. The accumulation of cholesterol esters in the arterial intima is a characteristic feature of atherosclerosis. (12 Dec 1998) |
| phorbol esters | <chemical> Tumour-promoting compounds obtained from croton oil (croton tiglium). Some of these are used in cell biological experiments as activators of protein kinase c. Pharmacological action: carcinogens. (12 Dec 1998) |
| polysaccharide sulfate esters | Sulfate esters of polysaccharides often found in cell walls. (05 Mar 2000) |
| pentosan sulfuric polyester | <chemical> A sulfated pentosyl polysaccharide with heparin-like properties used in treatment of thromboses, inflammation and as an enzyme inhibitor. Pharmacological action: non-steroidal anti-inflammatory agents, anticoagulant, enzyme inhibitors, Chemical name: Xylan, hydrogen sulfate (12 Dec 1998) |
| sulfuric acids | Inorganic and organic derivatives of sulfuric acid (h2so4). The salts and esters of sulfuric acid are known as sulfates and sulfuric acid esters respectively. (12 Dec 1998) |
| sulfuric ether | CH3CH2OCH2CH3;a flammable, volatile organic solvent used in extraction procedures; formerly widely used as an inhalation anaesthetic; shortcomings include: irritating vapor, slow onset and prolonged recovery phase, explosion hazard. Synonym: ethyl ether, ethyl oxide, sulfuric ether. (05 Mar 2000) |
| sulfuric oxide | SO3;forms sulfuric acid, H2SO4, by its reaction with water. Synonym: sulfuric oxide. (05 Mar 2000) |
| Rambourg's chromic acid-phosphotungstic acid stain | <technique> A stain for glycoproteins, used with an electron microscope, with which ultrathin tissue sections reveal complex carbohydrates in the same locations as shown by Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |
| a1-acid glycoprotein | <biology> Plasma protein of mammals and birds, 38% carbohydrate. In humans a single chain glycoprotein of 39 kD. Increased levels are associated with inflammation, pregnancy and various diseases. (18 Nov 1997) |
| abscisic acid | <biochemistry> A lipid hormone that inhibits cell growth in plants, it is associated with fruit drop, leaf death and seed dormancy. It is synthesised in the plastids from carotenoids. This hormone helps plants deal with water loss, and its effects can be reversed with gibberellins. (06 May 1997) |