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1199941-04-2

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1199941-04-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1199941-04-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,9,9,4 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1199941-04:
(9*1)+(8*1)+(7*9)+(6*9)+(5*9)+(4*4)+(3*1)+(2*0)+(1*4)=202
202 % 10 = 2
So 1199941-04-2 is a valid CAS Registry Number.

1199941-04-2Downstream Products

1199941-04-2Relevant academic research and scientific papers

Asymmetric [4+2] cycloadditions employing 1,3-dienes derived from (R)-4-t-butyldimethyl-silyloxy-2-cyclohexen-1-one

Hua, Zhengmao,Chen, Lei,Mei, Yan,Jin, Zhendong

body text, p. 6621 - 6623 (2010/03/01)

1,3-Dienes derived from (R)-4-t-butyldimethylsilyloxy-2-cyclohexen-1-one react with activated dienophiles to form predominately (or sometimes exclusively) syn/endo products. These controlled [4+2] cycloadditions increase the asymmetric complexity from one

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