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156497-45-9

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156497-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156497-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,9 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156497-45:
(8*1)+(7*5)+(6*6)+(5*4)+(4*9)+(3*7)+(2*4)+(1*5)=169
169 % 10 = 9
So 156497-45-9 is a valid CAS Registry Number.
InChI:InChI=1/C18H17NO3/c20-18-14-3-1-2-4-16(14)22-17-11-13(7-8-15(17)18)21-10-9-19-12-5-6-12/h1-4,7-8,11-12,19H,5-6,9-10H2

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