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Tritylphosphonic acid, also known as triphenylmethylphosphonic acid, is an organophosphorus compound with the chemical formula C19H17O3P. It is a white crystalline solid that is soluble in organic solvents and has a molecular weight of 326.31 g/mol. tritylphosphonic acid is primarily used as a reagent in organic synthesis, particularly in the preparation of trityl cations, which are employed as protecting groups in the synthesis of oligonucleotides and other biomolecules. Tritylphosphonic acid is also utilized in the synthesis of various pharmaceuticals and agrochemicals due to its stability and reactivity. It is important to handle tritylphosphonic acid with care, as it may have potential health risks and should be stored away from heat and open flames.

4759-28-8

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4759-28-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4759-28-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,5 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4759-28:
(6*4)+(5*7)+(4*5)+(3*9)+(2*2)+(1*8)=118
118 % 10 = 8
So 4759-28-8 is a valid CAS Registry Number.

4759-28-8Relevant academic research and scientific papers

Structural analogues of bioactive phosphonic acids: First crystal structure characterization of phosphonothioic and boranophosphonic acids

Belabassi, Yamina,Gushwa, Audra F.,Richards, Anne F.,Montchamp, Jean-Luc

experimental part, p. 2214 - 2228 (2009/08/07)

Phosphonothioic and boranophosphonic acids have been structurally characterized for the first time by single X-ray crystallography. These two functional groups, and the corresponding phosphonic acid, were all conveniently synthesized in high yields from t

Photolysis of triarylmethylphosphonic acids and their esters

Shi,Okamoto,Takamuku

, p. 453 - 460 (2007/10/02)

Upon UV-irradiation in an alkaline alcohol solution, some triarylmethylphosphonic acids underwent C-P bond cleavage to give triarylmethanes and alkyl dihydrogenphosphates, while, in an acidic or a neutral alcohol solution, they afforded biaryls. Their dimethyl esters gave also biaryls and dimethyl [alkoxy(aryl)methyl]phosphonates, which were derived from the insertion of (dialkoxyphosphinyl) arylcarbenes into the OH bond of the alcohol. The carbene was generated by photo-α,α-elimination of two aryl groups of the phosphonate.

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