Amazon piggybacking - asin collecting - data scraping/crawling/mining

The excel spreadsheet contains a list of product codes, titles, retail price and amazon asin.

Amazon asins have been collected by searching for the product "Sorbothane" on amazon.co.uk - each product page contains an asin code contained within the URL - see images to show how amazon asins can be collected.

i require someone to search on each product page where sorbothane insoles are listed and collect the asins to add to the spreadsheet.

there are many duplicates of the same product on amazon - where duplicates exist, a new line is to be inserted and the rows copied from the same size - e.g. see lines 10 - 14 on the spreadsheet which has already been worked on..

if there are any listings where you are not sure about - please do not just add these or ignore these - send me a list of inks where you were uncertain e.g. product titles and pictures are confusing or the listing is for a multi or bundle pack.

I will add these myself after checking.

my goal is to have each asin selling on amazon for these products listed . to do this i first need to gather all of the active asins.