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The UK’s only official Sigma Aldrich gold standard distributor


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Yorlab is an official distributor of market leader Merck chemicals, and is designated gold status in recognition of our multi regional service. As a Merck distributor we can provide you with more than 400,000 chemicals to choose from.

We can supply Acids, Alkalines, Analytical standards, HPLC solvents, Microbiological products, petroleum (ASTM standards) and Titration products.

Our prices are competitive and we offer free next day delivery where possible.

We have a direct link through to Sigma-Aldrich’s website, where you are able to use your unique customer login to order the chemicals you require direct from Sigma-Aldrich at our competitive prices. With so much choice, selecting the right chemical and checking their availability can be both time consuming and costly, so we are always here to help you buy the best product at the right price.

Click Here to shop at shop-at-sigma

Once you have clicked through simply:

  1. Log in.
  2. Add the items you require to your basket.
  3. Once you are happy with your selections please select “Check Out”. You will then return to this page.
  4. Fill out the contact page that will appear below. You will need your contact details and a purchase order number.
  5. Click ‘Send’ to process your order.
  6. Once we receive the order we will process it as soon as possible.