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131086-79-8

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131086-79-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131086-79-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,8 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131086-79:
(8*1)+(7*3)+(6*1)+(5*0)+(4*8)+(3*6)+(2*7)+(1*9)=108
108 % 10 = 8
So 131086-79-8 is a valid CAS Registry Number.

131086-79-8Relevant articles and documents

Synthesis of 13C-dilabeled 4-coumaroylspermidines

Geneste, Herve,Hesse, Manfred

, p. 15199 - 15214 (2007/10/03)

Five 13C-dilabeled constitution isomers of 4-coumaroylspermidines were prepared in nine to eleven steps: N1,4-di[(E)-4-coumaroyl]-(5,8- 13C2)spermidine (13b), N1-[(E)-4-coumaroyl]-(5,8-13C2)spermidine (17b), N1,8-di[(E)-4-coumaroyl]-(1,4-13C2)spermidine (20b), N4-[(E)-4- coumaroyl]-(1,4-13C2)spermidine (24b) and N1,4,8-tri[(E)-4-coumaroyl]- (5,8-13C2)spermidine (26). The two 13C-atoms were subsequently introduced using labeled potassium cyanide. The synthesis proceeds through stepwise construction of the polyamine backbone including protection and deprotection steps of the amino functions. Based on 1H-1H NOE interactions, the preliminary study of their binding reveals that 20b binds to tRNA in the same way as spermidine does, whereas 24b and 26 do not show any NOE effects with the tRNA protons.

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