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7,16-bis-(4-amino-benzoyl)-1,4,10,13-tetraoxa-7,16-diaza-cyclooctadecane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71907-56-7

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71907-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71907-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,0 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71907-56:
(7*7)+(6*1)+(5*9)+(4*0)+(3*7)+(2*5)+(1*6)=137
137 % 10 = 7
So 71907-56-7 is a valid CAS Registry Number.

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