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2-Pentanone, 4,5-epoxy-5-methyl- (7CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

89489-45-2

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89489-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89489-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,8 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89489-45:
(7*8)+(6*9)+(5*4)+(4*8)+(3*9)+(2*4)+(1*5)=202
202 % 10 = 2
So 89489-45-2 is a valid CAS Registry Number.

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