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77197-85-4

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77197-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77197-85-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,9 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77197-85:
(7*7)+(6*7)+(5*1)+(4*9)+(3*7)+(2*8)+(1*5)=174
174 % 10 = 4
So 77197-85-4 is a valid CAS Registry Number.

77197-85-4Relevant articles and documents

PRODUCTION AND PROPERTIES OF N-BENZYLIDENEPERCHLOROVINYLAMINE

Drach, B. S.,Popovich, T. P.,Kalinin, V. N.,Kovalev, V. A.,Soifer, G. B.,et al.

, p. 1762 - 1765 (2007/10/02)

The action of triethylamine on the readily obtainable N-benzyltrichloroacetimidoyl chloride gives a high yield of N-benzylideneperchlorovinylamine (CCl2=CClN=CHC6H5), which adds chlorine under mild conditions and gives a mixture of two chlorotropic tautomers, i. e., N-benzylideneperchloroethylamine and N-1-chlorobenzyltrichloroacetimidoyl chloride.It was possible to demonstrate the chlorotropic equilibrium in the -CCl2-N=CH- -CCl=N-CHCl- system by means of the PMR spectra.

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