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5-Nitropyrogallol-1-benzolsulfonat is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

32905-19-4

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32905-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 32905-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,9,0 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 32905-19:
(7*3)+(6*2)+(5*9)+(4*0)+(3*5)+(2*1)+(1*9)=104
104 % 10 = 4
So 32905-19-4 is a valid CAS Registry Number.
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