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127787-71-7

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127787-71-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127787-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,8 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 127787-71:
(8*1)+(7*2)+(6*7)+(5*7)+(4*8)+(3*7)+(2*7)+(1*1)=167
167 % 10 = 7
So 127787-71-7 is a valid CAS Registry Number.

127787-71-7Downstream Products

127787-71-7Relevant articles and documents

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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