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136964-79-9

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136964-79-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136964-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,9,6 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136964-79:
(8*1)+(7*3)+(6*6)+(5*9)+(4*6)+(3*4)+(2*7)+(1*9)=169
169 % 10 = 9
So 136964-79-9 is a valid CAS Registry Number.

136964-79-9Relevant articles and documents

BIS(TERT-BUTYLSULFONYL)ACETYLENE AS A GENERAL SYNTHETIC EQUIVALENT OF ALKYNES IN DIELS-ALDER CHEMISTRY. I: HIGHLY SELECTIVE REDUCTION AND ALKYLATING MONODESULFONYLATION OF Z-1,2-BIS(TERT-BUTYLSULFONYL)ETHENES

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

, p. 4579 - 4582 (2007/10/02)

Bicyclic (Z)-1,2-Bis(tert-butylsulfonyl)ethenes arising from Diels-Alder reactions of bis(tert-butylsulfonyl)acetylene are efficiently reduced to monosulfones by samarium(II) iodide and alkylatively monodesulfonylated by organolithium compounds.

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