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1253949-72-2

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1253949-72-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1253949-72-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,9,4 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1253949-72:
(9*1)+(8*2)+(7*5)+(6*3)+(5*9)+(4*4)+(3*9)+(2*7)+(1*2)=182
182 % 10 = 2
So 1253949-72-2 is a valid CAS Registry Number.

1253949-72-2Downstream Products

1253949-72-2Relevant academic research and scientific papers

Diindeno[1,2,3,4-defg;1′,2′,3′,4′-mnop]chrysenes: Solution-phase synthesis and the bowl-to-bowl inversion barrier

Chang, Hung-Ing,Huang, Hsin-Ting,Huang, Cheng-Hao,Kuo, Ming-Yu,Wu, Yao-Ting

, p. 7241 - 7243 (2010)

Diindeno[1,2,3,4-defg;1′,2′,3′,4′-mnop]chrysenes 2 were straightforwardly prepared in around 20% yield from 9,10- diarylphenanthrenes 3 by palladium-catalyzed intramolecular arylations. The bowl-to-bowl inversion barrier for buckybowl 2-iPr is predicted to be approximately 7 kcal mol-1 based on density functional theory calculations and this value is consistent with the results of a variable-temperature 1H-NMR study.

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