The CAS Registry Mumber 1257535-56-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,5,3 and 5 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 1257535-56: (9*1)+(8*2)+(7*5)+(6*7)+(5*5)+(4*3)+(3*5)+(2*5)+(1*6)=170 170 % 10 = 0 So 1257535-56-0 is a valid CAS Registry Number.
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Get Best Price for1257535-56-0Ethyl 3-amino-5-bromopyridine-4-carboxylate, 3-Amino-5-bromo-4-(ethoxycarbonyl)pyridine