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191-67-3

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191-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191-67-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,9 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 191-67:
(5*1)+(4*9)+(3*1)+(2*6)+(1*7)=63
63 % 10 = 3
So 191-67-3 is a valid CAS Registry Number.

191-67-3Relevant articles and documents

Oxidative Intramolecular C-C Bond Formation Reactions of 1,2-Diarylbenzenes: Syntheses of Highly Conjugated Double-Bridged Polycyclic Aromatic Hydrocarbons

Islam, Md. Rafikul,Nishinaga, Tohru,Hirabayashi, Kazunori,Shimizu, Toshio,Sugiura, Ken-Ichi

, p. 383 - 392 (2021/10/05)

Oxidation reactions of 1,2-diarylbenzenes induce intramolecular C-C bond formation. The substrates studied were prepared by the stepwise Suzuki-Miyaura coupling reaction that introduced 2-naphthyl, 2-anthranyl, and 2-pyrenyl groups on the ortho -positions

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