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cc-dichlorobis(2-(phenylazo)pyridine)osmium(II) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

87172-01-8

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87172-01-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87172-01-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,7 and 2 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87172-01:
(7*8)+(6*7)+(5*1)+(4*7)+(3*2)+(2*0)+(1*1)=138
138 % 10 = 8
So 87172-01-8 is a valid CAS Registry Number.

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