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2-(3-benzyl-6,8-dibromo-4-oxo-3,4-dihydro-quinazolin-2-ylsulfanyl)-N-ethyl-N-phenyl-acetamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20557-40-8

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20557-40-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20557-40-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,5 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20557-40:
(7*2)+(6*0)+(5*5)+(4*5)+(3*7)+(2*4)+(1*0)=88
88 % 10 = 8
So 20557-40-8 is a valid CAS Registry Number.

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