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198631-12-8

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198631-12-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198631-12-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,6,3 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 198631-12:
(8*1)+(7*9)+(6*8)+(5*6)+(4*3)+(3*1)+(2*1)+(1*2)=168
168 % 10 = 8
So 198631-12-8 is a valid CAS Registry Number.

198631-12-8Relevant articles and documents

Regioselective aryl radical cyclisation. Part 2. Synthesis of octahydro-1H-dibenzo[a,d]cycloheptenes through 7-endo ring closure

Ghosh, Ajit K.,Mukhopadhyaya, Jayanta K.,Ghatak, Usha Ranjan

, p. 2747 - 2755 (2007/10/03)

A simple convergent synthesis of trans- and cis-octahydro-1H-dibenzo[a,d]cycloheptenes 15a-c and 16a-c and 20a-c and 21a-c through implementation of a regioselective 7-endo-trig-aryl radical cyclisation of the respective 2-(o-bromoarylethyl)-1-methylenecy

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