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77776-12-6

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77776-12-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77776-12-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,7 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77776-12:
(7*7)+(6*7)+(5*7)+(4*7)+(3*6)+(2*1)+(1*2)=176
176 % 10 = 6
So 77776-12-6 is a valid CAS Registry Number.

77776-12-6Relevant articles and documents

Intraanular phenyl-substituierte Phane - Synthese und dynamische Stereochemie

Boeckmann, Klaus,Voegtle, Fritz

, p. 1048 - 1064 (2007/10/02)

The synthesis and properties of phanes of different ring size, substituted intraanularly by phenyl groups, and of new biphenylophanes 3, 38 - 43 with "pseudo-syn/anti"-structure are described.Barriers for the hindered rotation of intraanular phenyl substituents have been determined by D-NMR spectroscopy. syn/anti conformers of -, -, - and metacyclophanes are found.A better method for the preparation of mediocyclic bisdisulfides is reported.The pyrolysis of (2-biphenylyl)methyl sulfones leads to fluorenes; pyrolysis of the thiosulfonic S-ester 44 yields bibenzyl and dibenzyl sulfide.

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