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1-Acetyl-2-methyl-5-methoxy-3-oxoindoline is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71653-67-3

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71653-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71653-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,5 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71653-67:
(7*7)+(6*1)+(5*6)+(4*5)+(3*3)+(2*6)+(1*7)=133
133 % 10 = 3
So 71653-67-3 is a valid CAS Registry Number.

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