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9-dihydro-N-desmethylerythromycin A is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

654076-77-4

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654076-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 654076-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,4,0,7 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 654076-77:
(8*6)+(7*5)+(6*4)+(5*0)+(4*7)+(3*6)+(2*7)+(1*7)=174
174 % 10 = 4
So 654076-77-4 is a valid CAS Registry Number.

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