340019-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340019-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,0,1 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 340019-20:
(8*3)+(7*4)+(6*0)+(5*0)+(4*1)+(3*9)+(2*2)+(1*0)=87
87 % 10 = 7
So 340019-20-7 is a valid CAS Registry Number.
340019-20-7Relevant articles and documents
Pharmaceutically active isoindoline derivatives
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Page column 16, (2010/02/03)
A compound of formula I wherein each of R1and R2, independently of the other, is alkyl, alkoxy, cyano, cycloalkoxy, cycloalkyl or cycloalkylmethoxy; one of X and X′ is ═C═O or ═SO2and the other of X and X′ is a divalent gr
