Triphosphoric acid esters

Adenosine 51-monophosphate, AS22 Adenosine 1-N-oxide, AS03 Adenosine 5 -(tetrahydrogentri-phosphate), AS60 Adenosine triphosphate, AS60 Adenosine 51-triphosphoric acid ester, AS60... 

Thiamine monophosphate ester phosphoric acid salt Urn-beon. Ci3H N408PjS mol wt 442.35. C 32.58%, H 4.56%, N 12.67%, O 28.94%, P 14.00%, S 7.25%. Obtained by boiling an aq soln of thiamine triphosphoric acid ester for 2 hrs Velluz et al.. Bull. Soc. Chim. France 15, 871 (1948) from thiamine phosphoric acid ester chloride hydrochloride by ion exchange Zima et al., E. Merck s Jahresber. 67, 10... 

Thiamine Triphosphoric Acid Ester, Thiamine tri -phosphate ester vitamin B, triphosphate ester. 

Problem 13.16 Alkyl esters of di- and triphosphoric acid are important in biochemistry because they are stable m the aqueous medium of living cells and are hydrolyzed by enzymes to supply the energy needed for muscle ontraction and other processes, (a) Give structural formulas for these esters, (b) Write equations for the lydrolysis reactions that are energy-liberating. ... 

Also, phosphoric acid forms an extensive series of anhydrides (with P—O—P bonds), which further diversify the number and kind of phosphate esters. The most important phosphate esters are derivatives of mono-, di-, and triphosphoric acid (sometimes classified as ortho-, pyro-, and meta-phos-... 

Threitol, from polysaccharides, 87 Threonine, 258 Thymidine, 228, 231 6-phosphates, 220 pyrophosphate esters of, 221 5-triphosphoric acid, 228 —, 5-(rhamnosyl dihydrogen pyrophosphate), 219 Thymine, 2-thio-, 229 Thymol, 236... 

The alcohol adenosine forms esters with diphosphoric and triphosphoric acid (ADP and ATP, respectively), which are used for energy production in biological systems. 

See Adenosine triphosphate Adenosine triphosphate CAS 56-65-5 EINECS/ELINCS 200-283-2 Synonyms Adenosine, 5 -(tetrahydrogen triphosphate) Adenosine-5 -triphosphate Adenosine-5 -triphosphoric acid Adenylpyrophosphoric acid 9- 3-d-Arabinofuranosyladenine 5 -triphosphate ATP Triphosphoric acid adenosine ester... 

Triphosphoric acid adenosine ester. See Adenosine triphosphate Triphosphoric acid pentapotassium salt. See Potassium tripolyphosphate Triphosphoric acid pentasodium salt Triphosphoric acid sodium salt. See Pentasodium triphosphate Tripiperazine dicitrate. See Piperazine citrate... 

One way cells can activate a carboxylic acid is to use adenosine triphosphate (ATP) to convert the carboxylic acid into an acyl phosphate or an acyl adenylate—carbonyl compounds with good leaving groups. ATP is an ester of triphosphoric acid. Its sttucture is shown here, both in its entirety and with Ad in place of the adenosyl group. 

Esters of phosphoric acid, pyrophosphoric acid, and triphosphoric acid are important biological molecules. Each OH group of the acid can be esterified monoesters and diesters are the most common biological molecules. ATP is a monoester of triphosphoric acid. We have seen that the components of cell membranes are monoesters or diesters of phosphoric acid (Section 16.13), and that many of the coenzymes are monoesters or diesters of either phosphoric acid or pyrophosphoric acid (Chapter 24). In Section 26.1, we will see that DNA and RNA are diesters of phosphoric acid. 

Nucleotides, in addition, carry phosphoric acid in ester linkage with the ribose (or deoxyribose) component. The 5 -esters are biologically important here the phosphoric acid (or pyrophosphoric or triphosphoric acid) is bound to the —CH2OH group of the sugar moiety (cf. ATP, uridine and cytidine diphosphate Chapt. Vl-5). 

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