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2-chloro-4-(5-methoxy-2,4-dimethyl-phenyl)-4-oxo-butyric acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

856809-15-9

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856809-15-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 856809-15-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,8,0 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 856809-15:
(8*8)+(7*5)+(6*6)+(5*8)+(4*0)+(3*9)+(2*1)+(1*5)=209
209 % 10 = 9
So 856809-15-9 is a valid CAS Registry Number.

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