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217474-47-0

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217474-47-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217474-47-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,7 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 217474-47:
(8*2)+(7*1)+(6*7)+(5*4)+(4*7)+(3*4)+(2*4)+(1*7)=140
140 % 10 = 0
So 217474-47-0 is a valid CAS Registry Number.

217474-47-0Relevant articles and documents

Synthesis of aminophenyl and methoxyphenyl perfluoroalkyl ketones

Lee, Hyeran,Czarny, Agnieszka,Battiste, Merle A.,Strekowski, Lucjan

, p. 221 - 224 (1998)

The title compounds are obtained by direct hydrolysis of the corresponding 2/4-perfluoroalkyl-substituted anilines and anisoles by the system AcOH/HBr/H2O/Al2O3. A two-step preparation of 2/4-perfluoroacylanilines involves the treatment of the 2/4-perfluoroalkylaniline with sodium ethoxide followed by hydrolysis of the resultant diethyl acetal with hydriodic acid.

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