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124554-09-2

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124554-09-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124554-09-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,5,5 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 124554-09:
(8*1)+(7*2)+(6*4)+(5*5)+(4*5)+(3*4)+(2*0)+(1*9)=112
112 % 10 = 2
So 124554-09-2 is a valid CAS Registry Number.

124554-09-2Relevant articles and documents

Aryliminodimagnesium Reagents. XVI. Formation of o-Hydroxyazoarenes by Condensation with o-Hydroxynitroarenes. Favorable Role of o-Hydroxyl Group in the Reaction

Okubo, Masao,Nakashima, Takanori,Shiku, Haruko

, p. 1621 - 1625 (2007/10/02)

Hydroxy(HO)-azoxy and -azoarenes were formed by condensation of ArN(MgBr)2 with o-, m-, and p-HO-nitrobenzenes; nuclear substitution took place as a minor or a major pathway. o-HO-azobenzene was obtained in sufficiently high yield.Relative yields of the products varied according to the position of HO group and reaction conditions.The yield variation was explained by the effects of relative efficiency of single electron transfer, ?-complexation, and cooperation of reagent molecules.

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