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Pentanoic acid, 2,4-dimethyl-5-oxo-, methyl ester, (2R,4S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74609-22-6

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74609-22-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74609-22-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,0 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74609-22:
(7*7)+(6*4)+(5*6)+(4*0)+(3*9)+(2*2)+(1*2)=136
136 % 10 = 6
So 74609-22-6 is a valid CAS Registry Number.

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