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20347-50-6

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20347-50-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20347-50-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,4 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20347-50:
(7*2)+(6*0)+(5*3)+(4*4)+(3*7)+(2*5)+(1*0)=76
76 % 10 = 6
So 20347-50-6 is a valid CAS Registry Number.

20347-50-6Relevant articles and documents

Charge distribution within hypercarbon-halogenated 1-Ph-2-X-1,2-dicarba- closo-dodecaboranes, (X = F, Cl, Br, I): A dipole moment and computational study

Hnyk, Drahomír,V?ete?ka, Václav,Dro?, Ladislav

, p. 246 - 249 (2010)

Vector analyses of experimental dipole moments of a series of halogenated 1-Ph-2-X-1,2-dicarba-closododecaboranes, (X = F, Cl, Br, I) combined with theoretical calculations show that there are intramolecular contacts between heavy halogens (Br and I) and the benzene ring, whereas this attraction is absent for F and Cl.

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