1239498-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239498-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,4,9 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1239498-91:
(9*1)+(8*2)+(7*3)+(6*9)+(5*4)+(4*9)+(3*8)+(2*9)+(1*1)=199
199 % 10 = 9
So 1239498-91-9 is a valid CAS Registry Number.
1239498-91-9Relevant academic research and scientific papers
Synthesis of the macrocyclic core of iriomoteolide-1a
Li, Shuo,Chen, Zheng,Xu, Zhengshuang,Ye, Tao
supporting information; experimental part, p. 4773 - 4775 (2010/09/16)
The fully functionalized macrocyclic core of the marine natural product iriomoteolide-1a has been successfully constructed in a convergent and enantioselective manner.