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82522-60-9

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82522-60-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82522-60-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,5,2 and 2 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 82522-60:
(7*8)+(6*2)+(5*5)+(4*2)+(3*2)+(2*6)+(1*0)=119
119 % 10 = 9
So 82522-60-9 is a valid CAS Registry Number.

82522-60-9Downstream Products

82522-60-9Relevant articles and documents

Bis(carbomethoxy)maleic Anhydride

Hall, H. K.,Sentman, R. C.,Nogues, P.

, p. 3647 - 3649 (2007/10/02)

Bis(carbomethoxy)maleic anhydride (1) was synthesized by phosphoric anhydride induced demethoxylation of tetramethyl ethylenetetracarboxylate.With p-methoxystyrene, anethole, divinylbenzene, and diphenylethylene, 1 formed 2:1 Diels-Alder adducts.With styrene and isobutyl vinyl ether, 1 underwent an inverse electron-demand Diels-Alder reaction leading to 3,4-dihydro-2H-pyran derivatives.In the Diels-Alder reaction with butadiene, 1 was 100 times less reactive than (carbomethoxy)maleic anhydride.A radical-initiated alternating copolymer was obtained at 80 deg C with styrene.

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