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869959-91-1

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869959-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 869959-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,9,9,5 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 869959-91:
(8*8)+(7*6)+(6*9)+(5*9)+(4*5)+(3*9)+(2*9)+(1*1)=271
271 % 10 = 1
So 869959-91-1 is a valid CAS Registry Number.

869959-91-1Relevant articles and documents

New reactivity patterns in activated indoles with 2-methyl substituents

Jones, Ashley W.,Wahyuningsih, Tutik Dwi,Pchalek, Karin,Kumar, Naresh,Black, David StC.

, p. 10490 - 10500 (2005)

The synthesis and reactive properties of two new 3-aryl-2-methyl-4,6- dimethoxyindoles are reported. These compounds show typical electrophilic substitution and addition reactions at C7, but not oxidative dimerisation because of the reactivity of the 2-methyl group. This methyl group can be effectively oxidised to a carbaldehyde by selenium dioxide, but formation of 7,7′-diindolylselenides also occurs.

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