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3-Methyl-1-phenyl-2-phenylseleno-1-butanon is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57205-23-9

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57205-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57205-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,0 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57205-23:
(7*5)+(6*7)+(5*2)+(4*0)+(3*5)+(2*2)+(1*3)=109
109 % 10 = 9
So 57205-23-9 is a valid CAS Registry Number.
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