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123519-67-5

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123519-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123519-67-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,5,1 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 123519-67:
(8*1)+(7*2)+(6*3)+(5*5)+(4*1)+(3*9)+(2*6)+(1*7)=115
115 % 10 = 5
So 123519-67-5 is a valid CAS Registry Number.

123519-67-5Downstream Products

123519-67-5Relevant articles and documents

Rotational Isomerism in Fluorene Derivatives. XV. Conformational Equilibria of 2-Substituted and 2,7-Disubstituted 9-(2'-Dimethylaminophenyl)-fluorene Derivatives and the Effects of Acid on Them

Nishida, Akiko,Takeshita, Makoto,Kawano, Nobuaki,Fujisaki, Shizuo,Kajigaeshi, Shoji

, p. 1093 - 1096 (2007/10/02)

Several 9-(2'-dimethylaminophenyl)-9-fluorenols (2) and 9-(2'-dimethylaminophenyl)fluorens (3), which had electron-attracting or electron-releasing groups at 2- or 2,7-positions of the fluorene ring, were synthesized.The conformational equilibria (anti -

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