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66720-17-0

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66720-17-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66720-17-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,7,2 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66720-17:
(7*6)+(6*6)+(5*7)+(4*2)+(3*0)+(2*1)+(1*7)=130
130 % 10 = 0
So 66720-17-0 is a valid CAS Registry Number.
InChI:InChI=1/C12H11I3N2O4.C12H22O11.Na/c1-4(18)16-10-7(13)6(12(20)21)8(14)11(9(10)15)17(3)5(2)19;13-1-4-6(16)8(18)9(19)11(21-4)23-12(3-15)10(20)7(17)5(2-14)22-12;/h1-3H3,(H,16,18)(H,20,21);4-11,13-20H,1-3H2;/q;;+1/p-1/t;4-,5-,6-,7-,8+,9-,10+,11-,12-;/m.1./s1

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