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5002-11-9

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5002-11-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5002-11-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,0 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5002-11:
(6*5)+(5*0)+(4*0)+(3*2)+(2*1)+(1*1)=39
39 % 10 = 9
So 5002-11-9 is a valid CAS Registry Number.

5002-11-9Upstream product

5002-11-9Relevant articles and documents

Formation Constants of Cyanohydrins of Substituted Acetylbiphenyls

Ananthakrishnanadar, P.,Kannan, N.

, p. 74 - 75 (2007/10/02)

The formation constants of cyanohydrins of 2'- and 3'-substituted 4-acetylbiphenyls have been determined at 30 deg C in 80percent dioxan-water (v/v).The 3'-substituted 4-acetylbiphenyls obey the Hammett equation giving a ρ-value of 0.52; 2'-substituted cyanohydrins do not obey the Hammett equation.The formation constants of 3'-substituted 4-acetylbiphenyls and their rate constants for the reduction by sodium borohydride reveal a linear relationship (r = 0.990).The influence of 2'-substituents reveals the existence of ?-electron steric effect.

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