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80557-10-4

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80557-10-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80557-10-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,5,5 and 7 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 80557-10:
(7*8)+(6*0)+(5*5)+(4*5)+(3*7)+(2*1)+(1*0)=124
124 % 10 = 4
So 80557-10-4 is a valid CAS Registry Number.
InChI:InChI=1/C18H16O6/c1-3-24-8-9-7-11-14(18(23-2)15(9)20)17(22)13-10(16(11)21)5-4-6-12(13)19/h4-7,19-20H,3,8H2,1-2H3

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