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C28H20N2 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1235456-40-2

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1235456-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1235456-40-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,5,4,5 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1235456-40:
(9*1)+(8*2)+(7*3)+(6*5)+(5*4)+(4*5)+(3*6)+(2*4)+(1*0)=142
142 % 10 = 2
So 1235456-40-2 is a valid CAS Registry Number.

1235456-40-2Relevant academic research and scientific papers

Arylethynyl derivatives of the dihydroazulene/vinylheptafulvene photo/thermoswitch: Tuning the switching event

Broman, Soren Lindbaek,Petersen, Michael Axman,Tortzen, Christian G.,Kadziola, Anders,Kilsa, Kristine,Nielsen, Mogens Brondsted

experimental part, p. 9165 - 9174 (2010/08/21)

A selection of dihydroazulene (DHA) photoswitches incorporating an arylethynyl-substituent in the seven-membered ring was prepared by palladium-catalyzed Sonogashira cross-coupling reactions employing a suitable bromo-functionalized DHA. Shielding of the

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