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Important business update: Merck Life Science legal entity consolidation

As of January 1, 2024, Merck Pty Ltd and Sigma Aldrich Pty Ltd have consolidated into a single legal entity, Merck Life Science Pty Ltd.

What you need to know:

  1. Please inform your procurement and finance offices about this change.
  2. Update your administrative processes using the information provided below.
  3. Ensure any outstanding payments are reconciled with the legal entity that issued the invoice.
  4. Starting January 1, 2024, direct all new orders to Merck Life Science Pty Ltd (ABN 66 051 627 831).

Online Ordering:

  • On December 20, 2023, we decommissioned the MeComm website (
  • From January 4, 2024 all eCommerce activities will be conducted through
  • If you place orders via, you can continue to use your login details and password without change.
  • If you previously placed orders via MeComm, your account has been transitioned to

B2B and eProcurement Ordering:

Your B2B and/or eProcurement teams worked closely with our integration specialists to ensure our products remain connected on your platform.

  • Ordering processes has not changed for Sigma-Aldrich Pty Ltd customers.
  • Merck Pty Ltd customers will be guided by their account manager.
  • For customers of both entities, the Sigma-Aldrich platform will be the exclusive ordering channel.

Ordering documentation

From January 1, only the product code on the label will be featured in your order documentation. Please update your system accordingly if you previously recorded the Merck internal material reference number (eg. 9000...).

Email Notifications

Please refer to the email notifications previously sent regarding this change for further details:


The following changes to our legal entities in Australia took effect on January 1, 2024

If you are only a customer of Sigma-Aldrich Pty Ltd, please update the company name and address only.

If you are only a customer of Merck Pty Ltd, please create Merck Life Science Pty Ltd. as a vendor with the below information.

If you are a customer of both entities, please use Sigma-Aldrich Pty Ltd as the vendor for all your Merck Life Science Pty Ltd. items, then update the company name, and address to Merck Life Science Pty Ltd.

Merck Life Science Pty Ltd 
Ground Floor, Building 1
885 Mountain Highway
VIC 3153

ACN: 051 627 831

ABN: 66 051 627 831 

Payment by transfer:

BANK NAME: JPMorgan Chase Bank, N.A. Sydney Branch                          
BSB: 212-200
Account #: 16041587   
Swift BIC: CHASAU2X      

Please ensure you have the correct contact information:

Customer Excellence - Life Science
Phone: 1800 800 097

Invoice and Payments

Customer Excellence - Process Solutions
Phone: 02 9841 0588 

Frequently Asked Questions

What actions do I need to take?

You will need to inform your procurement and accounts payable teams to update their administrative processes pertaining to our company details. Such actions may include (but are not limited to):

  • Creating a new vendor, or        
  • Changing the vendor code, or
  • Amending the existing vendor name and address

Merck Life Science Pty Ltd. will continue to abide by the terms of any written contract or pricing commitment which our representatives in Australia signed or made in writing prior to January 1, 2024, but which extend after that date. 

All existing contracts with Merck Pty Ltd or Sigma-Aldrich Pty Ltd will be transferred to Merck Life Science Pty Ltd. If you would prefer an amended contract to reflect Merck Life Science Pty Ltd. as the contracting party, please let us know.

After January 1, invoices will be issued by the consolidated legal entity, Merck Life Science Pty Ltd. 

No, our Terms and Conditions of Sale are already aligned between Merck Pty Ltd and Sigma-Aldrich Pty Ltd.

Yes, all eCommerce for Merck Life Science has moved to, including products previously ordered on

The website displays real-time, customer-specific pricing. Web credentials (login and/or password) may change for some users.

Customers attempting to order on will be redirected to

The integration will not affect how we serve customers and supply products.

We will honour these quotes, but if you place an order after January 1, 2024, you will need to place the order with the new consolidated legal entity, Merck Life Science Pty Ltd. If you need a new quote with the consolidated legal entity name, a new quote with the same terms will be issued.

Data Privacy Notice

As a result of our corporate reorganisation, in order for us to continue processing your customer data in support of our contractual relationship, it is necessary that we transfer your customer data from Merck Pty Ltd to Sigma-Aldrich Pty Ltd (to be renamed Merck Life Science Pty Ltd). If you object to this transfer, please send an email to

Your Rights

As a data subject you have the following rights:

You can request access to your personal data, including the provision of a copy of the personal data undergoing processing.

You can ask us to update or correct any inadequate, incomplete, or inaccurate data.

You can request the erasure of your personal data if the legal requirements are satisfied. This is the case if:

  • your personal data is no longer needed for the purposes of which it was collected; 
  • the sole legal basis for processing such data was your consent, and you have withdrawn such consent;
  • you have objected to processing on the legal grounds relating to your situation, and we cannot prove that there are overriding legitimate grounds for processing; 
  • your personal data were processed unlawfully; or 
  • your personal data must be erased to comply with legal requirements.

You can restrict the processing of personal data under certain conditions. The requirements are:

  • the accuracy of your personal data is contested by you, and we must verify the accuracy of the personal data; 
  • the processing is unlawful, but you oppose the erasure of the personal data and request the restriction of their use instead; 
  • We no longer need the personal data for the purposes of processing, but you require the data to establish, exercise or defend your legal claims; 
  • you have objected to processing pending the verification of whether our legitimate grounds override your legitimate grounds.

You have the right to data portability, e.g., you can ask us to provide your personal data in a structured, commonly used, and machine-readable format for your use or transfer to another controller.  You can lodge a complaint with a supervisory authority.  Where processing is based on your consent, you have the right to withdraw consent at any time, without affecting the lawfulness of processing based on consent before its withdrawal.

Right to object - to the extent that we are relying on our legitimate interests to use your personal data, you have the right to object to such use, and we must stop such processing unless we can either demonstrate compelling legitimate grounds for the use that override your interests, rights and freedoms or where we need to process the data for the establishment, exercise or defence of legal claims. In addition, you can object to the processing of your personal data for direct marketing purposes, which includes profiling to the extent that it is related to such direct marketing without providing any reason. We will then cease the processing of your personal data for direct marketing purposes.

If you want to exercise any of these rights or have any questions or concerns about how we treat your personal data, please contact

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