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2-(C6H4-2-NO2)-1.7-C2B10H11 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

42489-67-8

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42489-67-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42489-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,8 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42489-67:
(7*4)+(6*2)+(5*4)+(4*8)+(3*9)+(2*6)+(1*7)=138
138 % 10 = 8
So 42489-67-8 is a valid CAS Registry Number.

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