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79839-44-4

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79839-44-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79839-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,3 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 79839-44:
(7*7)+(6*9)+(5*8)+(4*3)+(3*9)+(2*4)+(1*4)=194
194 % 10 = 4
So 79839-44-4 is a valid CAS Registry Number.

79839-44-4Relevant articles and documents

An Easy, High-yield Synthesis of Highly Chlorinated Mono-, Di- and Triarylmethanes

Ballester, Manuel,Riera, Juan,Castaner, Juan,Rovira, Concepcion,Armet, Olag

, p. 64 - 66 (2007/10/02)

A simple, direct, high-yield Friedel-Crafts synthesis of highly chlorinated, overcrowded αH-aryl, αH-diaryl, and αH-triarylmethanes is described.The latter compounds are most valuable chemical precursors of inert free radicals, which are frequently obtain

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