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3-m-Tolyloxymethyl-chromen-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

197152-83-3

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197152-83-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197152-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,1,5 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 197152-83:
(8*1)+(7*9)+(6*7)+(5*1)+(4*5)+(3*2)+(2*8)+(1*3)=163
163 % 10 = 3
So 197152-83-3 is a valid CAS Registry Number.

197152-83-3Relevant academic research and scientific papers

Studies on Sigmatropic Rearrangements: Thermal Rearrangement of 3-(meta-Substituted Aryloxymethyl) Coumarins

Majumdar,Jana,Ghosh,Saha

, p. 641 - 650 (1997)

At elevated temperatures, the 3-(meta-substituted aryloxymethyl) coumarins 3a-e and 3g-k undergo sigmatropic rearrangements to give the hydroxylated 3-benzylcoumarins 4a-e and 4g-k. Upon methylation and subsequent oxidation with N-bromo succinimide, the 3-(chlorosubstituted benzyl) coumarins 4a, 4m and 4n afford 3-(chlorosubstituted benzoyl) coumarins 8a, 8m, and 8n.

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