Tetraphosphoric acid
Tetraphosphoric acid structure
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Common Name | Tetraphosphoric acid | ||
|---|---|---|---|---|
| CAS Number | 8017-16-1 | Molecular Weight | N/A | |
| Density | 2.06 | Boiling Point | 300ºC | |
| Molecular Formula | (H)n+2.(P)n.(O)3n+1 | Melting Point | 16ºC | |
| MSDS | Chinese USA | Flash Point | N/A | |
| Symbol |
GHS05 |
Signal Word | Danger | |
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Polyphosphoric acid trimethylsilyl ester promoted intramolecular acylation of an olefin by a carboxylic acid: convenient construction of C-18-functionalized delta14-hecogenin acetate.
Org. Lett. 5(22) , 4061-4, (2003) [reaction: see text]. Polyphosphoric acid trimethylsilyl ester (PPSE)-promoted intramolecular Friedel-Crafts reactions on a nonaromatic carboxylic acid system have been investigated. Studies led to the synthesis of C-18 functionalized steroidal compounds 5 an... |
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Synthesis and antitubercular evaluation of amidoalkyl dibenzofuranols and 1H-benzo[2,3]benzofuro[4,5-e][1,3]oxazin-3(2H)-ones.
Bioorg. Med. Chem. Lett. 21 , 4316-9, (2011) A new class of amidoalkyl dibenzofuranols and 1H-benzo[2,3]benzofuro[4,5-e][1,3]oxazin-3(2H)-ones was synthesized in very good yields through polyphosphoric acid supported on silica (PPA-SiO(2)) catalyzed one-pot three component condensation of 2-dibenzofuran... |
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Synthesis and insect antifeedant activity of aurones against Spodoptera litura larvae.
J. Agric. Food Chem. 55(3) , 700-5, (2007) A series of aurones were prepared from various phenols via phenoxy acetic acids and coumaranones and evaluated for insect antifeedant activity against the common cutworm (Spodoptera litura). The naturally occurring aurone was most active at an ED50 of 0.12 mi... |
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Silica-supported polyphosphoric acid in the synthesis of 4-substituted tetrahydroisoquinoline derivatives.
Molecules 18(2) , 1869-80, (2013) We report herein an application of an α-amidoalkylation reaction, as an alternative efficient synthesis of 4-aryl- and 4-methyl-1,2,3,4-tetrahydroisoquinoline derivatives. The amides required for this purpose would result from reaction of aminoacetaldehyde di... |
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Cellular formation of DNA and RNA and the relationship to tumour cell development.
Med. Hypotheses 62(1) , 97-111, (2004) A hypothesis concerning the mode of formation of the components of DNA and RNA in living cells is described. This is based on the reversible hydration and dehydration of polyphosphoric acids in the cell. It is shown that formation of DNA in the cell directs r... |
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The MPEG monophosphate ester: synthesis and characterization.
J. Biomater. Sci. Polym. Ed. 20(14) , 2103-16, (2009) Methods of preparation of the phosphoric ester of monomethyl ether of poly(ethylene glycol) (MPEG-P) from MPEG (M(n) = 550 and 2000) and phosphoric acid (P), or its derivatives - pyrophosphoric acid (PY), polyphosphoric acid (PP) and POCl(3)- are described an... |
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Effect of polyphosphoric acid pre-treatment of titanium on attachment, proliferation, and differentiation of osteoblast-like cells (MC3T3-E1).
Clin. Oral Implants Res. 19(3) , 320-5, (2008) To evaluate the effect of polyphosphoric acid (PPA) pre-treatment of titanium (Ti) on the initial attachment, proliferation, and differentiation of mouse osteoblast-like cells (MC3T3-E1).Adsorption of PPA to Ti was achieved by immersing Ti disks (15 mm in dia... |
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Calcification of cartilage formed in vitro on calcium polyphosphate bone substitutes is regulated by inorganic polyphosphate.
Acta Biomater. 6(8) , 3302-9, (2010) A major challenge to the successful clinical application of bioengineered cartilage remains its integration to surrounding tissues upon implantation. One way to address this consists of generating biphasic constructs composed of articular cartilage formed in ... |
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[Recycling system of ribosomal proteins by Lon protease].
Tanpakushitsu Kakusan Koso. 49(7 Suppl) , 1069-70, (2004)
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Chemical interaction of polyphosphoric acid with titanium and its effect on human bone marrow derived mesenchymal stem cell behavior.
J. Biomed. Mater. Res. A 82(1) , 195-200, (2007) The aim of this study was to evaluate the effect of treating titanium (Ti) with polyphosphoric acid on the attachment and proliferation of human bone marrow derived mesenchymal stem cells (hBMSCs). Cleaned Ti disks were immersed into three different concentra... |