The CAS Registry Mumber 1268719-66-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,7,1 and 9 respectively; the second part has 2 digits, 6 and 6 respectively. Calculate Digit Verification of CAS Registry Number 1268719-66: (9*1)+(8*2)+(7*6)+(6*8)+(5*7)+(4*1)+(3*9)+(2*6)+(1*6)=199 199 % 10 = 9 So 1268719-66-9 is a valid CAS Registry Number.
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Get Best Price for1268719-66-9R-7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9-fluoro-2,3-dihydro-3-Methyl-10-(4-Methyl-1-piperazinyl)-7-oxo- Methyl ester