The CAS Registry Mumber 1173020-16-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,3,0,2 and 0 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 1173020-16: (9*1)+(8*1)+(7*7)+(6*3)+(5*0)+(4*2)+(3*0)+(2*1)+(1*6)=100 100 % 10 = 0 So 1173020-16-0 is a valid CAS Registry Number.
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(33882) SCA-13C-15N2hydrochloride VETRANAL™, analytical standard