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1-butyl-3-[2-(3,4-dimethoxyphenyl)-2-oxoethyl]-3-hydroxy-1,3-dihydro-2H-indol-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

689740-02-1

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689740-02-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 689740-02-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,7,4 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 689740-02:
(8*6)+(7*8)+(6*9)+(5*7)+(4*4)+(3*0)+(2*0)+(1*2)=211
211 % 10 = 1
So 689740-02-1 is a valid CAS Registry Number.

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