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1133909-76-8

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1133909-76-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1133909-76-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,3,9,0 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1133909-76:
(9*1)+(8*1)+(7*3)+(6*3)+(5*9)+(4*0)+(3*9)+(2*7)+(1*6)=148
148 % 10 = 8
So 1133909-76-8 is a valid CAS Registry Number.

1133909-76-8Relevant articles and documents

Concerning the reactivity of ptad with isomeric dienes: The mechanism of the Diels-Alder cycloaddition

Alberti, Mariza N.,Orfanopoulos, Michael

supporting information; experimental part, p. 1659 - 1662 (2009/09/07)

Cyclopropyl substituted dienes are employed as mechanistic probes in the triazolinedione Diels-Alder (DA) reaction. In aprotic and protic solvents, apart from the DA adducts that bear an intact cyclopropyl group, complicated and rearranged products are also obtained. These results provide solid evidence for the involvement of an open intermediate with a lifetime greater than 2 x 10 -12 s.

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