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(2E,10E)-(4R,5S,6R,7R,8S)-7-(tert-Butyl-dimethyl-silanyloxy)-12-methoxymethoxy-2,4,6,8,10-pentamethyl-dodeca-2,10-diene-1,5-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

217640-17-0

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217640-17-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217640-17-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,6,4 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 217640-17:
(8*2)+(7*1)+(6*7)+(5*6)+(4*4)+(3*0)+(2*1)+(1*7)=120
120 % 10 = 0
So 217640-17-0 is a valid CAS Registry Number.

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