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1253115-31-9

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1253115-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1253115-31-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,1,1 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1253115-31:
(9*1)+(8*2)+(7*5)+(6*3)+(5*1)+(4*1)+(3*5)+(2*3)+(1*1)=109
109 % 10 = 9
So 1253115-31-9 is a valid CAS Registry Number.

1253115-31-9Downstream Products

1253115-31-9Relevant articles and documents

Tether-free immobilized bifunctional squaramide organocatalysts for batch and flow reactions

Kardos, Gyoergy,Soos, Tibor

, p. 4490 - 4494 (2013)

This paper describes the preparation of highly efficient, easily accessible, and robust immobilized bifunctional organocatalysts. There was no need to employ any tether to secure high enantio- and diastereoselectivities in various Michael addition reactions. The synthetically useful Michael adducts were obtained within reasonable reaction times with the advantage of easy product isolation and the possibility of automation by using a flow chemistry apparatus. Easily accessible, robust, and cheap immobilized organocatalysts are developed and used to prepare Michael adducts in excellent yields with excellent enantioselectivities, even on the gram scale. Copyright

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