721443-73-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 721443-73-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,4,4 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 721443-73:
(8*7)+(7*2)+(6*1)+(5*4)+(4*4)+(3*3)+(2*7)+(1*3)=138
138 % 10 = 8
So 721443-73-8 is a valid CAS Registry Number.
721443-73-8Relevant articles and documents
PROCESS FOR PREPARING INDOLINONE PHENYLAMINOPROPANOL DERIVATIVES
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Page/Page column 60-61, (2010/11/30)
Processes are disclosed for preparing indolinone phenylaminopropanol derivatives, particularly chiral indolinone phenylaminopropanol derivatives of the general formula (I). The processes disclosed may be used to prepare, inter alia, 7-fluoro-1 - [(1 S, 2R