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1,1'-diphenyl-5,5'-di-p-tolyl-4,5,4',5'-tetrahydro-1H,1'H-3,3'-thiophene-2,5-diyl-bis-pyrazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21334-32-7

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21334-32-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21334-32-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,3 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21334-32:
(7*2)+(6*1)+(5*3)+(4*3)+(3*4)+(2*3)+(1*2)=67
67 % 10 = 7
So 21334-32-7 is a valid CAS Registry Number.

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