Cas 99222-19-2,C<sub>28</sub>H<sub>20</sub>

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Check Digit Verification of cas no

The CAS Registry Mumber 99222-19-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,2 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99222-19:
(7*9)+(6*9)+(5*2)+(4*2)+(3*2)+(2*1)+(1*9)=152
152 % 10 = 2
So 99222-19-2 is a valid CAS Registry Number.

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99222-19-2Relevant articles and documents

BIS(TERT-BUTYLSULFONYL)ACETYLENE AS A GENERAL SYNTHETIC EQUIVALENT OF ALKYNES IN DIELS-ALDER CHEMISTRY. II: REDUCTIVE AND ALKYLATIVE DESULFONYLATIONS OF BICYCLIC 1-ALKYL-2-(TERT-BUTYLSULFONYL)ETHENES

Virgili, Marina,Belloch, Jordi,Moyano, Albert,Pericas, Miquel A.,Riera, Antoni

, p. 4583 - 4586 (2007/10/02)

Both reductive and alkylative desulfonylations of bicyclic vinyl sulfones derived from Diels-Alder cycloadducts of bis(tert-butylsulfonyl)acetylene (1) are described.These transformations establish the synthetic equivalence of 1 with acetylene, 1-alkynes

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99222-19-2