The CAS Registry Mumber 130291-53-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,9 and 1 respectively; the second part has 2 digits, 5 and 3 respectively. Calculate Digit Verification of CAS Registry Number 130291-53: (8*1)+(7*3)+(6*0)+(5*2)+(4*9)+(3*1)+(2*5)+(1*3)=91 91 % 10 = 1 So 130291-53-1 is a valid CAS Registry Number.
Get Best Price for130291-53-11H-Pyrido[3,4-f][1,3]benzoxazepine-11-carboxylic acid,
dodecahydro-10-methyl-2-[(4-methylphenyl)sulfonyl]-1,6,9-trioxo-,
methyl ester