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162826-19-9

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162826-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 162826-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,8,2 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 162826-19:
(8*1)+(7*6)+(6*2)+(5*8)+(4*2)+(3*6)+(2*1)+(1*9)=139
139 % 10 = 9
So 162826-19-9 is a valid CAS Registry Number.

162826-19-9Relevant articles and documents

Gram-Scale Synthesis and Supramolecular Complex of Precursors of Clar's Hydrocarbon Triangulene

Ribar, Peter,?olomek, Tomá?,Jurí?ek, Michal

, p. 7124 - 7128 (2019/09/07)

We present to date the most efficient gram-scale synthesis of triangulene-4,8-dione and 12-hydroxytriangulene-4,8-dione, the precursors of Clar's hydrocarbon, in overall yields >50%. The direct dihydroprecursors of triangulene, obtained upon reduction of

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