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72765-52-7

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  • Benzenesulfonic acid,3-[2-[4-[2-(4-ethoxyphenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt(1:1)

    Cas No: 72765-52-7

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72765-52-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72765-52-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,6 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72765-52:
(7*7)+(6*2)+(5*7)+(4*6)+(3*5)+(2*5)+(1*2)=147
147 % 10 = 7
So 72765-52-7 is a valid CAS Registry Number.
InChI:InChI=1/C24H20N4O4S.Na/c1-2-32-19-12-10-17(11-13-19)25-27-23-14-15-24(22-9-4-3-8-21(22)23)28-26-18-6-5-7-20(16-18)33(29,30)31;/h3-16H,2H2,1H3,(H,29,30,31);/q;+1/p-1

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