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2,5-Bis-heptylamino-3,6-dimethoxy-[1,4]benzoquinone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28293-20-1

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28293-20-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28293-20-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,9 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28293-20:
(7*2)+(6*8)+(5*2)+(4*9)+(3*3)+(2*2)+(1*0)=121
121 % 10 = 1
So 28293-20-1 is a valid CAS Registry Number.

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