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2',3'-O-(methoxymethylene)guanosine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

16628-83-4

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16628-83-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16628-83-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,2 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16628-83:
(7*1)+(6*6)+(5*6)+(4*2)+(3*8)+(2*8)+(1*3)=124
124 % 10 = 4
So 16628-83-4 is a valid CAS Registry Number.

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