143774-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143774-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,7,7 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143774-54:
(8*1)+(7*4)+(6*3)+(5*7)+(4*7)+(3*4)+(2*5)+(1*4)=143
143 % 10 = 3
So 143774-54-3 is a valid CAS Registry Number.
143774-54-3Relevant academic research and scientific papers
Manganese(III) acetate oxidation of alkyl substituted 1- (phenylsulfonyl)indoles
Ketcha,Zhou,Grossie
, p. 565 - 574 (2007/10/02)
Methyl substituted 1-(phenylsulfonyl)indoles undergo tandem oxidation of the indoline ring and a C-2 methyl group. If there is no alkyl substituent at the C-2 position, nuclear acetoxylation can occur to afford oxindoles.
