| tetraethyl pyrophosphate | Et4P2O7; [(EtO)2PO]2O;an organic phosphoric compound used as an insecticide; a potent irreversible cholinesterase inhibitor. Acronym: TEPP (05 Mar 2000) |
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| thiamine pyrophosphate | <biochemistry> Co carboxylase. A cofactor that has an unusually acidic carbon atom able to form carbon carbon bonds. Found in pyruvate dehydrogenase and transketolase. (18 Nov 1997) |
| thiamin pyrophosphate | The diphosphoric ester of thiamin, a coenzyme of several (de)carboxylases, transketolases, and alpha-oxoacid dehydrogenases. Synonym: aneurine pyrophosphate, cocarboxylase, diphosphothiamin. (05 Mar 2000) |
| farnesyl pyrophosphate | The pyrophosphoryl derivative of farnesol; a key intermediate in the synthesis of steroids, dolichol, ubiquinone, prenylated proteins, and haem a. (05 Mar 2000) |
| uridine 5'-(alpha-D-galactopyranosyl pyrophosphate) NAD 2-hexosyl oxidoreductase | <enzyme> Converts udpgalactose (pyranose form) to 2-keto-galactose which rearranges to furanose form Chemical name: UDPgalactose nad 2-hexosyl oxidoreductase Registry number: EC 1.1.1.- (26 Jun 1999) |
| 5-phospho-alpha-d-ribosyl 1-pyrophosphate | 5-Phosphoribosyl 1-diphosphate;d-Ribose carrying a phosphate group on ribose carbon-5 and a pyrophosphate group on ribose carbon-1; an intermediate in the formation of the pyrimidine and purine nucleotides as well as NAD+. Synonym: 5-phosphoribose 1-diphosphate. Acronym: PRPP (05 Mar 2000) |
| 99mTc pyrophosphate | A radionuclide tracer used for imaging ischemic myocardium in nuclear medicine. See: technetium-99m. (05 Mar 2000) |
| lipothiamide pyrophosphate | Name once given to the coenzymes of the multi-enzyme complex catalyzing the formation of acetyl-CoA from pyruvate and involving lipoamide and thiamin pyrophosphate, on the assumption that they were a single compound. See: lipoic acid. (05 Mar 2000) |