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198566-37-9

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198566-37-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198566-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,5,6 and 6 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 198566-37:
(8*1)+(7*9)+(6*8)+(5*5)+(4*6)+(3*6)+(2*3)+(1*7)=199
199 % 10 = 9
So 198566-37-9 is a valid CAS Registry Number.

198566-37-9Relevant articles and documents

Rhodium(I)-mediated synthesis of benzo[2,1-b:3,4-b':5,6-c'']trithiophenes and naphtho[2,1-b:3,4-b']dithiophenes

Dahlmann, Uwe,Neidlein, Richard

, p. 1027 - 1033 (2007/10/03)

The syntheses of carbonylated benzo[2,1-b:3,4-b':5,6-c'']trithiophenes 2 and naphtho[2,1-b:3,4-b']dithiophenes 3 are described. The treatment of 5,5'-dicarbonylated 3,3'-bis(phenylethynyl) -2,2'-bithiophenes 6 [readily available via Pd(II)-catalyzed alkyn

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