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8-ethoxy-undec-7-en-5-yn-4-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20212-40-2

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20212-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20212-40-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,1 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20212-40:
(7*2)+(6*0)+(5*2)+(4*1)+(3*2)+(2*4)+(1*0)=42
42 % 10 = 2
So 20212-40-2 is a valid CAS Registry Number.

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