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(1R,5R,7S,8R)-7-Bromomethyl-5-[(R)-2-(tert-butyl-dimethyl-silanyloxy)-but-3-ynyl]-8-(tert-butyl-dimethyl-silanyloxymethyl)-4,7-dimethyl-6-oxa-bicyclo[3.2.1]oct-3-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

172172-71-3

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172172-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172172-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,1,7 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 172172-71:
(8*1)+(7*7)+(6*2)+(5*1)+(4*7)+(3*2)+(2*7)+(1*1)=123
123 % 10 = 3
So 172172-71-3 is a valid CAS Registry Number.

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