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67646-65-5

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67646-65-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67646-65-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,4 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 67646-65:
(7*6)+(6*7)+(5*6)+(4*4)+(3*6)+(2*6)+(1*5)=165
165 % 10 = 5
So 67646-65-5 is a valid CAS Registry Number.
InChI:InChI=1/C7H3Cl5O2S/c1-15(13,14)7-5(11)3(9)2(8)4(10)6(7)12/h1H3

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