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172984-57-5

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172984-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172984-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,8 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 172984-57:
(8*1)+(7*7)+(6*2)+(5*9)+(4*8)+(3*4)+(2*5)+(1*7)=175
175 % 10 = 5
So 172984-57-5 is a valid CAS Registry Number.

172984-57-5Downstream Products

172984-57-5Relevant articles and documents

SYNTHESIS AND REACTIVITY OF 2-FORMYLINDOLE AND 5-FORMYLPYRROLE DERIVATIVES

Ryabova, S. Yu.,Trofimkin, Yu. I.,Azimov, V. A.,Alekseeva, L. M.,Granik, V. G.

, p. 127 - 131 (2007/10/03)

The methylation of 2-formyl-3-hydroxyindole was studied and the sequence of introduction the methyl groups was traced by 1H NMR spectroscopy.The O-methyl, N-methyl, and N,O-methyl derivatives of 2-formylindole, and also the O-methyl and N-methyl derivativ

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