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1644275-33-1

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1644275-33-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1644275-33-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,4,2,7 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1644275-33:
(9*1)+(8*6)+(7*4)+(6*4)+(5*2)+(4*7)+(3*5)+(2*3)+(1*3)=171
171 % 10 = 1
So 1644275-33-1 is a valid CAS Registry Number.

1644275-33-1Downstream Products

1644275-33-1Relevant articles and documents

Substituted benzo[a]carbazoles and indoleacetic acids from arylglyoxals and enamines through domino condensation, thermal cyclization, and aromatization

Maity, Subhendu,Pathak, Sudipta,Pramanik, Animesh

, p. 4651 - 4662 (2014/08/05)

A two-step method has been developed in which cyclohexanone-fused 2-(3-pyrrolyl)-2-cyanoacetamides, the condensation products of enamines, arylglyoxals, and malononitrile, are converted into highly substituted benzo[a]carbazoles through a one-step thermal cyclization and palladium-catalyzed aromatization. The biologically important indoleacetic acid derivatives are also obtained in good yields from the hydrolysis and aromatization of the same cyanoacetamides. Copyright

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