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155940-62-8

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155940-62-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155940-62-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,9,4 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 155940-62:
(8*1)+(7*5)+(6*5)+(5*9)+(4*4)+(3*0)+(2*6)+(1*2)=148
148 % 10 = 8
So 155940-62-8 is a valid CAS Registry Number.

155940-62-8Relevant articles and documents

Dendrimers and Dendrimer Building Blocks with Trisubstituted Benzene and "Hexacyclene" as Core Units

Kadei, Klaus,Moors, Rolf,Voegtle, Fritz

, p. 897 - 904 (2007/10/02)

The preparation of new dendritic compounds containing 1,3,5-substituted aromatic units or "hexacyclene" is described.Bulky dendrimers are obtained in few generations starting with polyfunctional core units like 1, 4, 5, 12, and hexacyclene (21).The dendrimers were synthesized by using both the divergent method (for 7) and the convergent method (for 13 and 22). 22 is the first dendrimer containing a crown unit as core. - Key Words: Dendrimers / Supramolecular chemistry

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