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98157-45-0

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98157-45-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98157-45-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,1,5 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 98157-45:
(7*9)+(6*8)+(5*1)+(4*5)+(3*7)+(2*4)+(1*5)=170
170 % 10 = 0
So 98157-45-0 is a valid CAS Registry Number.

98157-45-0Relevant articles and documents

REACTION OF 2,2-DIMETHYL-6-ARYL-1,3-DIOXIN-4-ONES WITH AROMATIC AMINES AND o-PHENYLENEDIAMINE

Andreichikov, Yu. S.,Gein, V. L.,Kozlov, A. P.,Vinokurova, O. V.

, p. 189 - 194 (2007/10/02)

N-Arylaroylacetamides and 4-aryl-1,5-benzodiazepin-4-ones were obtained by the thermolysis of 2,2-dimethyl-6-aryl-1,3-dioxin-4-ones in the presence of aromatic amines and o-phenylenediamine respectively.Investigetion of the reaction kinetics showed that the controlling stage is the generation of the aroylketenes, which takes place by a concerted -retrocycloaddition mechanism.

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