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3040-84-4

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3040-84-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3040-84-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,4 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3040-84:
(6*3)+(5*0)+(4*4)+(3*0)+(2*8)+(1*4)=54
54 % 10 = 4
So 3040-84-4 is a valid CAS Registry Number.

3040-84-4Relevant articles and documents

Domino reaction sequences leading to the formation of 2:2 adducts between acenaphthenequinone and acetophenone

Jacob, Jomon P.,Kunjachan, Christy,Sajitha,Thumpakara, Roshini K.,Rakesh,Nidhisha,Unnikrishnan, Perupparampil A.,Prathapan, Sreedharan

, p. 127 - 138 (2015/02/19)

A Michael-aldol domino reaction sequence of acenaphthenequinone with acetophenone in the presence of KOH in methanol solvent leading to the formation of three different 2:2 adducts arising through three distinct reaction sequences is described. Similar sequences leading to a highly substituted furan derivative were observed in the reaction between phenanthrenequinone and acetophenone.

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