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6,7,7-triphenyl-5-oxa-1-aza-bicyclo[4.2.0]octan-8-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21033-89-6

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21033-89-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21033-89-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,3 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21033-89:
(7*2)+(6*1)+(5*0)+(4*3)+(3*3)+(2*8)+(1*9)=66
66 % 10 = 6
So 21033-89-6 is a valid CAS Registry Number.

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