Cas 1001649-72-4,C23H24N2O5

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Check Digit Verification of cas no

The CAS Registry Mumber 1001649-72-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,1,6,4 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1001649-72:
(9*1)+(8*0)+(7*0)+(6*1)+(5*6)+(4*4)+(3*9)+(2*7)+(1*2)=104
104 % 10 = 4
So 1001649-72-4 is a valid CAS Registry Number.

1001649-72-4Upstream product

181520-09-2 7,11-Bis-(4-methoxy-phenyl)-3-thioxo-2,4-diaza-spiro[5.5]undecane-1,5,9-trione

1001649-72-4Downstream Products

1001649-72-4Relevant academic research and scientific papers

7,11-diaryl-2,4-diazaspiro[5.5]undecane-1,5,9-triones: A new series of spiroheterocycles

Khurana, Jitender M.,Arora, Reema,Satija, Sarishti

, p. 2709 - 2716 (2008/09/19)

A novel two step synthesis of 7,11-diaryl-2,4-diazaspiro[5.5]undecane-1,5,9-triones has been reported based on double Michael addition of 2-thiobarbiturates or N,N'-diaryl-2-thiobarbiturates with dibenzalacetones followed by reductive desulfurization with

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