Merck website updates

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Thanks for fixing those links, and disclosing your affiliation. Is there a pattern to the broken ones? If so, it would be easy to scan pretty much the whole Wikipedia site to generate a list of articles that need to be fixed. Is there a pattern to the change? If so, there are some bots and other tools that can handle making the changes on all affected pages quickly. DMacks (talk) 09:01, 3 February 2022 (UTC)Reply

Special:LinkSearch/http://www.sigmaaldrich.com/catalog/ProductDetail.do maybe? --Leyo 10:51, 23 February 2022 (UTC)Reply
When you update the product number please check and update (if necessary) in any case also the values which are using this reference. For example update the current date, the H- and P-Sets and so on. Otherwise you will produce inconsistencies.Rjh (talk) 18:20, 30 March 2022 (UTC)Reply
If the access date is updated, the labelling (if changed) needs to be updated, too. If the access date is not updated, then it's okay to only correct the link to the SDS. --Leyo 13:39, 31 March 2022 (UTC)Reply