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2,6-diphenyl-thiophenolatocopper(I) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

204520-89-8

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204520-89-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204520-89-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,5,2 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 204520-89:
(8*2)+(7*0)+(6*4)+(5*5)+(4*2)+(3*0)+(2*8)+(1*9)=98
98 % 10 = 8
So 204520-89-8 is a valid CAS Registry Number.

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