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191231-61-5

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191231-61-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191231-61-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,2,3 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 191231-61:
(8*1)+(7*9)+(6*1)+(5*2)+(4*3)+(3*1)+(2*6)+(1*1)=115
115 % 10 = 5
So 191231-61-5 is a valid CAS Registry Number.

191231-61-5Downstream Products

191231-61-5Relevant academic research and scientific papers

Recyclable merrifield resin-supported organocatalysts containing pyrrolidine unit through A3-coupling reaction linkage for asymmetric michael addition

Liu, Jie,Li, Pinhua,Zhang, Yicheng,Ren, Kai,Wang, Lei,Wang, Guanwu

, p. 432 - 441 (2010)

Merrifield resin-supported pyrrolidine-based chiral organocatalysts A2D through A3-coupling reaction linkage have been developed and found to be highly effective catalysts for the Michael addition reaction of ketones with nitrostyrenes. The rea

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