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1202194-31-7

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1202194-31-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1202194-31-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,2,1,9 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1202194-31:
(9*1)+(8*2)+(7*0)+(6*2)+(5*1)+(4*9)+(3*4)+(2*3)+(1*1)=97
97 % 10 = 7
So 1202194-31-7 is a valid CAS Registry Number.

1202194-31-7Downstream Products

1202194-31-7Relevant articles and documents

Cyanoacetamide MCR (III): Three-component Gewald reactions revisited

Wang, Kan,Kim, Dabin,Doemling, Alexander

experimental part, p. 111 - 118 (2010/10/19)

Cyanoacetic acid derivatives are the starting materials for a plethora of multicomponent reaction (MCR) scaffolds. Here we describe valuable general protocols for the synthesis of arrays of 2-aminothiophene-3carboxamides from cyanoacetamides, aldehydes or ketones, and sulfur via a Gewald-3CR variation, In many cases the reactions involve a very convenient work up by simple precipitation in water and filtration. More than 40 new products are described, We foresee our protocol and the resulting derivatives to become very valuable to greatly expanding the MCR scaffold space of cyanoacetamide derivatives.

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