543699-14-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 543699-14-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,3,6,9 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 543699-14:
(8*5)+(7*4)+(6*3)+(5*6)+(4*9)+(3*9)+(2*1)+(1*4)=185
185 % 10 = 5
So 543699-14-5 is a valid CAS Registry Number.
543699-14-5Relevant articles and documents
Diastereoselective synthesis of 2-oxiranyl and 2-aziridinyl thiazoles
Bona, Fabio,De Vitis, Luisella,Florio, Saverio,Ronzini, Ludovico,Troisi, Luigino
, p. 1381 - 1387 (2003)
2-Chloroalkylthiazolyllithiums, prepared by deprotonating the 2-chloroalkylthiazoles with n-BuLi at -78°C in THF, add to ketones or imines affording in 'one-pot' oxiranes and aziridines in a Z stereoselective manner.