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2,4-diphenylcyclobutane-1,3-dicarbonitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

133940-68-8

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133940-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133940-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133940-68:
(8*1)+(7*3)+(6*3)+(5*9)+(4*4)+(3*0)+(2*6)+(1*8)=128
128 % 10 = 8
So 133940-68-8 is a valid CAS Registry Number.

133940-68-8Relevant academic research and scientific papers

Unambiguous Proof of Nitrile Formation from Pyrazine Skeleton through Photo-Oxidative Degradation. Isolation and Structural Determination of Photodegraded Product of Amorphous Poly(2,5-distyrylpyrazine)

Hashimoto, Yukihiko,Adegawa, Yutaka,Hasegawa, Masaki,Onodera, Kazuyuki,Sakuragi, Hirochika,Tokumaru, Katsumi

, p. 1043 - 1045 (1991)

In the presence of oxygen, amorphous poly(2,5-distyrylpyrazine) film was readily photodegraded, accompanied by cleavage of the pyrazine rings in the main chain.From the photodegraded film, t-2,c-4-diphenylcyclobutane-r-1,t-3-dicarbonitrile was isolated in

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