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1621582-91-9

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1621582-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1621582-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,5,8 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1621582-91:
(9*1)+(8*6)+(7*2)+(6*1)+(5*5)+(4*8)+(3*2)+(2*9)+(1*1)=159
159 % 10 = 9
So 1621582-91-9 is a valid CAS Registry Number.

1621582-91-9Relevant academic research and scientific papers

Diels-alder reaction of 1,3-diarylbenzo[ c ]furans with thiophene S,S -dioxide/indenone derivatives: A facile preparation of substituted dibenzothiophene S,S-dioxides and fluorenones

Nandakumar, Meganathan,Karunakaran, Jayachandran,Mohanakrishnan, Arasambattu K.

supporting information, p. 3068 - 3071 (2014/06/23)

One pot syntheses of substituted dibenzothiophene S,S-dioxides and fluorenones were successfully achieved by Diels-Alder reaction of benzo[c]furans with thiophene S,S-dioxides and indenones, respectively. Photophysical properties of representative seven- and nine-membered dibenzothiophene S,S-dioxide acenes were also reported.

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