475203-27-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 475203-27-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,5,2,0 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 475203-27:
(8*4)+(7*7)+(6*5)+(5*2)+(4*0)+(3*3)+(2*2)+(1*7)=141
141 % 10 = 1
So 475203-27-1 is a valid CAS Registry Number.
475203-27-1Relevant academic research and scientific papers
3-Hydroxymethylbenzo[b]thiophene derivatives and process for their preparation
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Page/Page column 8-9, (2010/01/31)
The present invention is a method of producing a 3-hydroxymethyl-benzo[b]thiophene derivative without the possible concomitant formation of isomers, which comprises selectively cyclizing a sulfoxide having X shown in the reaction scheme below: wherein Rs
