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190188-43-3

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190188-43-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190188-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,1,8 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 190188-43:
(8*1)+(7*9)+(6*0)+(5*1)+(4*8)+(3*8)+(2*4)+(1*3)=143
143 % 10 = 3
So 190188-43-3 is a valid CAS Registry Number.

190188-43-3Downstream Products

190188-43-3Relevant articles and documents

Exploitation of differential reactivity of the carbon-chlorine bonds in 1,3-dichloroisoquinoline. Routes to new N,N-chelate ligands and 1,3-disubstituted isoquinolines

Ford, Alan,Sinn, Ekkehard,Woodward, Simon

, p. 927 - 934 (1997)

Under Pd(PPh3)4 catalysis, coupling of arylboronic acids to the 1-position of 1,3-dichloroisoquinoline takes place, leading exclusively to 1-aryl-3-chloroisoquinolines. This regiochemistry is demonstrated by the crystal structure of

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