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Heptanoic acid, 7-bromo-2-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2-(trimethylsilyl)ethyl ester, (2S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

669091-38-7

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669091-38-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 669091-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,9,0,9 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 669091-38:
(8*6)+(7*6)+(6*9)+(5*0)+(4*9)+(3*1)+(2*3)+(1*8)=197
197 % 10 = 7
So 669091-38-7 is a valid CAS Registry Number.

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