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Bachem AG Bachem Americas, Inc. Bachem Japan K.K.
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Frequently Asked Questions on Searching the Webshop

How do I get to your online shop?

Via Bachem’s homepage
Just click on “Online Shop” in the center of our welcome page or on the shopping cart.

How do I best enter the product I am looking for in your search function?

You can enter
- product name (especially with peptides), e.g. Melittin
The search function isn’t case-sensitive and you shall use Greek letters (α, γ etc.) and upper and lower-case numerals (NH2, Sar1) whenever applicable.
- Bachem’s product number
- the CAS number
- peptide sequence in one- or three-letter code (partial sequences: three-letter code only). For amino acids, please see 'How best to proceed when searching an amino acid derivative?'
in the search field, then hit “enter”.
If available, the desired product will be shown together with related products, product families, subfamilies and any other category your search term matches. With “melittin” you will also find e.g. “Melittin (free acid)” and the product family “Antimicrobial and Antiviral Peptides”. When clicking on one of the results, a new tab will open. When entering “vasopressin” and choosing the family “Vasopressin and Analogs” instead of a single product, you’ll be connected to our complete offer of vasopressin and related products.
While entering a search term, a preview appears prior the final search results. In many cases the preview has helpful information on the search term itself.

Can I search by one-letter code?

Yes. Use of one-letter code is recommended especially for searching peptides composed of proteinogenic amino acids and peptide substrates and inhibitors.
For a "translation" one-letter to three letter code and vice versa you can use our peptide calculator.

How best to proceed when searching an amino acid derivative?

When searching for a product for peptide synthesis, click on the tab “Amino Acids and Biochemicals”The menu on the left-hand side presents alphabetically arranged buttons linking to families of amino acid derivatives (proteinogenic and unusual), building blocks as pseudoproline dipeptides, resins, reagents for peptide synthesis, and biochemicals (e.g. detergents). Families consisting of subfamilies (most of them do) are marked by a +. A button at the bottom of the menu links to products which couldn’t be categorized.

Click on a family button, “Serine”. The subfamilies of “Serine” will be visible when clicking on the +, whereas all the products of the family will be shown in the middle. For displaying merely the products of a subfamily, click on the subfamily button e.g. “Fmoc-serine”. You can also enter the derivative you are looking for directly.

Entering e.g. “serine” will return the family and subfamilies of serine derivatives, but not the amino acid. With “ser” you will find all products containing a serine residue, peptides as well as amino acid derivatives. When entering the three-letter code designation, define both N- and C-terminus. Entering e.g. H-Ser-OH, Ac-Leu-OH, Boc-Val-OH will lead you to the desired product as result on top (if the product is available). Use of quotation marks (“H-Ser-OH”) is recommended. For amino acid amides (e.g. Ac-Ala-NH2) we recommend browsing the corresponding product family.

Entry of Boc-Lys will produce ca. 44 hits, as the complete shop is searched. The results include peptides, lysine family and subfamilies, and derivatives as Boc-Homocit-OH (synonym Boc-Lys(carbamoyl)-OH), but not derivatives of Boc-D-Lys.


How best to proceed when searching a peptide?

Click on the tab “Peptides”.The menu on the left-hand side lists the product families. Scroll down until you find a product family which could contain the peptide you are looking for. In most cases, allocation is obvious, e.g. Big Endothelin-1 should be assigned to the “Endothelins and Related Peptides“ family, as a “Big Endothelin” family doesn’t exist. The number in brackets corresponds to the number of products in the family, and the + button indicates the existence of subfamilies. Only a part of the peptides is allocated to families, the rest is filed under “Various Peptides”.


You can also enter

-- the product name:

e.g. Magainin, Sodefrin

You will get a single or several entries. Two or more products will be found in case of related peptides (Magainin I, Magainin II) and the product family, if they are part of one. As the whole product entry is searched, the mentioning of the product name in the description will also generate a positive result. In case of a negative result –not available- you can use the link at the bottom of the page for requesting a quote from our custom synthesis team.Quite often, a peptide is designated by several names and/or acronyms, but only one of them can be chosen for the product entry. As an example, quite a number of designations are in use for gonadotropin-releasing hormone. It is filed under LHRH in the family “Luteinizing Hormone-Releasing Hormone (LHRH) Analogs and Antagonists”. GnRH, Gonadorelin, and Luliberin are listed as “synonyms”. These additional designations are displayed in the snippet, so you don’t have to open the entry to find out.

-- the amino acid sequence (1- or 3-letter code):

e.g. Ala-Phe-Pro


You will find all peptides containing these amino acids. The number of results is mentioned on the top of the list (143). Entering H-Ala-Phe-Pro-OH will reduce the number of results. Use of quotation marks “H-Ala-Phe-Pro-OH” returns a single entry (in case the peptide is available). This peptide will show up as well, together with terminally modified sequences (here Z-APF-CMK), when entering APF. Partial sequences can be searched only using 3-letter code.


For searching dipeptides, we recommend using 3-letter code and quotation marks. When entering peptide amides, omit the C-terminal NH2 (both 1-letter and 3-letter code).- the CAS-number


How to find enzyme substrates and inhibitors?

For a given enzyme:Just click on the tab “Inhibitors and Substrates” and choose your enzyme from the menu on the left-hand side. Click on the + to access the “Inhibitors” or “Substrates” subfamilies.

For a substrate or inhibitor:

When looking for a specific substrate or inhibitor, you can enter a sequence in one-letter code, e.g. keying in YVAD will return all substrates and inhibitors containing this motif. Entering YVAD-CMK returns the chloromethyl ketones etc. For abbreviation in use for fluorophores and chromophores please see the glossary.

For getting an overview:

Enzyme substrates and inhibitors can be found under “Amino Acids and Biochemicals” as well as under “Peptides”.

Most of the amino acid families contain a subfamily “Substrates” or “Inhibitors and Substrates”. You will also find a family containing indigogenic substrates, and a number of substrates and inhibitors listed individually.

When looking for peptide-derived substrates, scroll down the menu in the peptide section. As we offer e.g. a large choice of caspase inhibitors and substrates, these compounds are compiled in a product family of their own. A plethora of protease substrates can be found in the product family “Enzyme Substrates”, our inhibitors have been compiled as well.


Why do I get several returns, even though I’ve restricted the search?

If the product you are looking for is part of a product family, further family members will be displayed. Hence, products as Bombesin (8-14) and (Lys3)-Bombesin will show up as well when entering Bombesin. But you will also find Alytesin. Why? The text part of a product entry consists of the product name and number, sequence, and, optionally, synonyms, a product description, and literature references. All these components are searched for your entry. Hence the entries containing the search term in their name will not necessarily show up first, as other items may contain the search term more often (in their name, synonyms, product description).



Can I see if the material I’m interested in is on stock?

Yes, just click on the product entry. In most cases you will find a green mark meaning that the product can be delivered rapidly. The majority of our products is kept in stock and can be delivered within 1-2 days

  • Green mark: Ships within 1 business day
  • Yellow mark: Ships within 3-5 business days
  • Red mark: Request lead time. This item is currently not available. Please contact us for further information.

In case a pack size is in stock (green flag), you can download the ADS (Analytical Datasheet = CofA) of a currently available lot.



Where do I find Bachem's publications?

If a product is listed in one or more of our e-brochures, you can download the file directly from the product entry. Just click on the tab “Brochures” and you’ll find the pdf (s). Here you can also find links to our Technical Notes.For an overview of the printed and downloadable brochures available from Bachem click on the button "Download” at the bottom of the product entry. You’ll be connected to our Technical Library, where you can choose from various catalogs and brochures containing information on our products and services, product monographs, product flyers (containing product compilations by research topic), technical notes on the handling of our products and further publications.



How can I display a complete product family?


Click on the tab “Peptides” (or “Amino Acids and Biochemicals”) and choose the desired family in the menu on the left-hand side. Click on the button and all members of the family will be shown. Families marked with + are divided into subfamilies. For displaying a subfamily click on the corresponding check box on the left-hand side. If the checkmark is removed, the complete family is listed again.


Do you offer PubMed links with your literature references?

Yes (in case the reference is registered in PubMed). Click on the “Literature” tab for accessing the references. You’ll find the links by mousing over the citations.
The reference compilation consists of two parts
“Bachem product citations” the product used during this study has been obtained from Bachem.
“Product citations” contains references used for preparing the product description.

Can I get an MSDS of my order?

Yes. For the vast majority of our products, the MSDS is available.


Just click on “Links/Documents”, then on the link “MSDS”. In case the MSDS cannot be downloaded, it can be ordered from our customer service. Please use our online contact form for your request.

How does the shop work?

The online shop consists of 4 “departments” accessed by clicking on one of the square tabs:


Amino Acids and Biochemicals: Building blocks and reagents for peptide synthesis and modification, e.g. coupling reagents, loaded resins; detergents, lipids, phospholipids…


Peptides: Bioactive peptides (usually filed by name, e.g. magainin I), oligopeptides (usually filed by amino acid sequence using three-letter code, e.g. H-Ala-Leu-Ala-OH)


Inhibitors & Substrates: A list of enzymes together with suitable substrates and inhibitors available at Bachem, albeit it does not contain our complete offer of substrates!


Areas of Interest: Selections of products which could be of interest for researchers working in the field, e.g. diabetes, Alzheimer’s, cancer.

A click on the adjacent Bachem logo will take you to the entry page.

Can I search specifically for dye labeled peptides?

Yes. You can use the filter option "Dye Label" in our webshop. Or, use our Dye Selector to search our catalog dye labeled peptides including a broad selection of FRET substrates. You can select the absorption/excitation wavelength you are aiming for and our catalog products in this wavelength range will be displayed. Furthermore, you can select specific dyes or filter the search results by research interests.

If you are unable to find your specific dye or FRET-labeled catalog product, please request a custom quote.