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N-Isopropyl-N'-<4-acetoxyphenyl>-carbodiimid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20809-53-4

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20809-53-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20809-53-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,0 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20809-53:
(7*2)+(6*0)+(5*8)+(4*0)+(3*9)+(2*5)+(1*3)=94
94 % 10 = 4
So 20809-53-4 is a valid CAS Registry Number.

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