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Have you tried ahref? Majesticseo? cogintiveseo? to see your backlinks or just moz?

If you think you have been hit try using this https://www.google.com/webmasters/tools/reconsideration and see if itshows up.

If the product you are launching will be searched for in Google -  I would buy it to protect your new product and redirect it to your new product page. Its worth the cost of registration of 1 year to see if the product will take off or you may want to use the domain in the the future.