Cas 1549706-51-5,diisopropyl ((3-nitrophenyl)ethynyl)phosphonate

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Check Digit Verification of cas no

The CAS Registry Mumber 1549706-51-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,9,7,0 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1549706-51:
(9*1)+(8*5)+(7*4)+(6*9)+(5*7)+(4*0)+(3*6)+(2*5)+(1*1)=195
195 % 10 = 5
So 1549706-51-5 is a valid CAS Registry Number.

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1549706-51-5Relevant articles and documents

Copper-Mediated oxidative decarboxylative coupling of arylpropiolic acids with dialkyl h-phosphonates in water

Li, Xiang,Yang, Fan,Wu, Yangjie,Wu, Yusheng

supporting information, p. 992 - 995 (2014/03/21)

An efficient, mild, and generally applicable protocol for copper-mediated oxidative decarboxylative coupling of arylpropiolic acids with dialkyl H-phosphonates in water has been developed. Note that the reaction could proceed smoothly under air at relativ

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1549706-51-5