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51146-36-2

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51146-36-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51146-36-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,4 and 6 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 51146-36:
(7*5)+(6*1)+(5*1)+(4*4)+(3*6)+(2*3)+(1*6)=92
92 % 10 = 2
So 51146-36-2 is a valid CAS Registry Number.

51146-36-2Relevant articles and documents

STUDIES ON ORGANOPHOSPHORUS COMPOUNDS 62. REACTIONS OF METHYLENEBISPHOSPHONATE WITH α-NITROALKENES. A NOVEL SYNTHESIS OF ETHENYLIDENEBISPHOSPHONATES AND 2-ISOXAZOLINE-5,5-DIYLBISPHOSPHONATES

Yuan, Chengye,Li, Chaozhong

, p. 75 - 82 (2007/10/02)

Reaction of methylenebisphosphonate with α-nitroalkenes followed by addition of trimethylchlorosilane leads to the formation of ethenylidenebisphosphonates and trimethylsilyl nitronate in almost quantitative yield.These two products, upon prolonged reaction at ambient temperature, provide 2-isoxazoline-5,5-diylbisphosphonates via regioselective 1,3-dipolar cycloaddition in high yield.Key words: Methylenebisphosphonate; α-nitroalkenes; ethenylidenebisphosphonate; 2-isoxazoline-5,5-diylbisphosphonate; 1,3-dipolar cycloaddition.

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