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81807-67-2

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81807-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81807-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,0 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81807-67:
(7*8)+(6*1)+(5*8)+(4*0)+(3*7)+(2*6)+(1*7)=142
142 % 10 = 2
So 81807-67-2 is a valid CAS Registry Number.

81807-67-2Relevant articles and documents

Formation of trisubstituted buta-1,3-dienes and α,β-unsaturated ketonesviathe reaction of functionalized vinyl phosphates and vinyl phosphordiamidates with organometallic reagents

Dvo?áková, Hana,Koudelka, Jakub,Oeser, Petr,Tobrman, Tomá?

, p. 35109 - 35120 (2020/10/19)

We studied the reactions of vinyl phosphates and vinyl phosphordiamidates containing an ester functional group with organometallic reagents. We found that the functionalized vinyl phosphates were smoothly converted into tri- and tetrasubstituted buta-1,3-

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