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Ethanone, 1-(2,3,5-trimethylbenzo[b]thien-6-yl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

22720-58-7

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22720-58-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22720-58-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,7,2 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22720-58:
(7*2)+(6*2)+(5*7)+(4*2)+(3*0)+(2*5)+(1*8)=87
87 % 10 = 7
So 22720-58-7 is a valid CAS Registry Number.

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