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127840-15-7

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127840-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127840-15-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,4 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127840-15:
(8*1)+(7*2)+(6*7)+(5*8)+(4*4)+(3*0)+(2*1)+(1*5)=127
127 % 10 = 7
So 127840-15-7 is a valid CAS Registry Number.

127840-15-7Relevant articles and documents

Synthesis of linear aza and thio analogues of acetogenins and evaluation of their cytotoxicity

Villo, Piret,Toom, Lauri,Eriste, Elo,Vares, Lauri

, p. 6886 - 6899 (2013/11/06)

We report the stereoselective synthesis of thio and aza analogues of Annonaceous acetogenins. The synthetic route allows easy variation of the stereochemistry and of the thio- and aza-fragments. Kinetic resolution of terminal bis-epoxides was used to set two remote stereocentres with high enantio- and diastereoselectivities in one step. The cytotoxicity of the analogues was assessed using the HeLa cell line. Four aza and two thio analogues of Annonaceous acetogenins were synthesized according to a general synthetic route. Two remote stereocentres in the analogues were set with high enantio- and diastereoselectivity in one step by hydrolytic kinetic resolution of a terminal bis-epoxide. Copyright

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