1620837-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620837-39-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,8,3 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1620837-39:
(9*1)+(8*6)+(7*2)+(6*0)+(5*8)+(4*3)+(3*7)+(2*3)+(1*9)=159
159 % 10 = 9
So 1620837-39-9 is a valid CAS Registry Number.
1620837-39-9Relevant articles and documents
Synthesis of a rigid tetrahedral linker with thioether end groups
Kretschmer, Florian,Wild, Andreas,Hager, Martin D.,Schubert, Ulrich S.
, p. 475 - 478 (2014)
The synthesis of a tetrahedral thio end-functionalized rigid oligo(p-phenylene ethynylene) (OPE) based on a convergent approach is reported.