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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 articles and documents

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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