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2-Hydroxy-2-((1S,6R)-8-oxo-7-aza-bicyclo[4.2.0]oct-3-en-7-yl)-malonic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77131-41-0

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77131-41-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77131-41-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,3 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77131-41:
(7*7)+(6*7)+(5*1)+(4*3)+(3*1)+(2*4)+(1*1)=120
120 % 10 = 0
So 77131-41-0 is a valid CAS Registry Number.

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