844644-07-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 844644-07-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,4,6,4 and 4 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 844644-07:
(8*8)+(7*4)+(6*4)+(5*6)+(4*4)+(3*4)+(2*0)+(1*7)=181
181 % 10 = 1
So 844644-07-1 is a valid CAS Registry Number.
844644-07-1Relevant articles and documents
Geometrically restricted 3-cyclopentylidene-1,3-dihydroindol-2-ones as potent protein tyrosine kinase inhibitors
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Page/Page column 17-18, (2010/02/10)
The present invention relates to certain sulfonamido-substituted geometrically restricted indolinones of the formula: wherein R1-R12 and X are variables defined herein. The sulfonamido-substituted geometrically restricted indolinones