1313493-13-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1313493-13-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,4,9 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1313493-13:
(9*1)+(8*3)+(7*1)+(6*3)+(5*4)+(4*9)+(3*3)+(2*1)+(1*3)=128
128 % 10 = 8
So 1313493-13-8 is a valid CAS Registry Number.
1313493-13-8Relevant articles and documents
Asymmetric synthesis of the core structure of leucosceptroids A-D
Xie, Jun,Ma, Yuelong,Horne, David A
, p. 6169 - 6176 (2011/10/02)
The asymmetric synthesis of the core structure of leucosceptroids A-D has been achieved. The key steps of the synthesis includes the formation of the cis-2,5-disubstituted THF ring by TPAP catalytic oxidative cyclization followed by a highly diastereosele