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203866-87-9

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  • 1H,5H,11H,15H-Xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium,9-[2(or 4)-[[(5-aminopentyl)amino]sulfonyl]-4(or 2)-sulfophenyl]-2,3,6,7,12,13,16,17-octahydro-,inner salt

    Cas No: 203866-87-9

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203866-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203866-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,8,6 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 203866-87:
(8*2)+(7*0)+(6*3)+(5*8)+(4*6)+(3*6)+(2*8)+(1*7)=139
139 % 10 = 9
So 203866-87-9 is a valid CAS Registry Number.

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