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1283089-17-7

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1283089-17-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1283089-17-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,3,0,8 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1283089-17:
(9*1)+(8*2)+(7*8)+(6*3)+(5*0)+(4*8)+(3*9)+(2*1)+(1*7)=167
167 % 10 = 7
So 1283089-17-7 is a valid CAS Registry Number.

1283089-17-7Relevant articles and documents

Development of methods for the synthesis of libraries of substituted maleimides and α,β-unsaturated-γ-butyrolactams

Awuah, Emelia,Capretta, Alfredo

experimental part, p. 3122 - 3130 (2011/06/24)

Synthetic methods for the preparation of maleimide and α,β- unsaturated-γ-butyrolactam compound collections are described. These routes take advantage of Pd cross-coupling and conjugate addition/elimination reactions to permit the facile production of bisaryl-maleimides, anilinoaryl-maleimides, and bisanilino-maleimides while allowing control over the synthesis of symmetrical or nonsymmetrical derivatives. Similarly, the chemistry developed allows for the generation of bisaryl substituted α,β-unsaturated-γ-butyrolactams. The scope and limitations of the approaches are presented.

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