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7-bromo-5-methyl-1,3-dihydrospiro[2H-indole-3,2'-[1,3]-dioxolane]-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

330991-57-6

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330991-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 330991-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,9,9 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 330991-57:
(8*3)+(7*3)+(6*0)+(5*9)+(4*9)+(3*1)+(2*5)+(1*7)=146
146 % 10 = 6
So 330991-57-6 is a valid CAS Registry Number.

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