670229-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670229-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,2 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 670229-17:
(8*6)+(7*7)+(6*0)+(5*2)+(4*2)+(3*9)+(2*1)+(1*7)=151
151 % 10 = 1
So 670229-17-1 is a valid CAS Registry Number.
670229-17-1Relevant articles and documents
Preparation of Symmetrical and Nonsymmetrical Fluorene -Sulfonamide Scaffolds
Jones, D. Heulyn,Tellam, James P.,Bresciani, Stefano,Wojno-Picon, Justyna,Cooper, Anthony W. J.,Tomkinson, Nicholas C. O.
supporting information, p. 577 - 582 (2017/03/11)
Methods for the preparation of symmetrical and nonsymmetrical 2,7-disubstituted 9H-fluorene derivatives are described.
