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  • 447439 - 1-Methyl-L-tryptophan

447439 Aldrich





Related Categories Amino Acids & Derivatives, Chemical Biology, Chemical Synthesis, Peptide Chemistry, Tryptophan More...
assay   95%
optical activity   [α]24/D −8.0°, c = 2 in acetic acid
mp   242-245 °C(lit.)


Frequently Asked Questions

Frequently Asked Questions are available for this Product.


1, 5 g in glass bottle

Price and Availability

Cross-Coupling Guide
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
How do you recommend dissolving Product No. 447439, 1-Methyl-L-tryptophan?
This product is soluble in 0.5 N Hydrochloric acid at 50 mg/mL. Based on information from one of our customers (not confirmed in our labs), this product is also soluble in 0.1 N sodium hydroxide at a 20 mM concentration. It is not soluble in DMSO.
What conditions do you recommend for long term storage of Product No. 447439, 1-Methyl-L-tryptophan?
The long term storage temperature of the product 447139 is at room temperature. This information can be found in the MSDS sheet. This document is available from our website.
The name of Product No. 447439 is "1-Methyl-L-tryptophan, 95%". How is that purity value determined?
The purity of Product No. 447439 is based on elemental analysis. That is, the assayed values for percent carbon and nitrogen should be within about 95% of their theoretical values. But the speification sheet does not report an overall purity value per se.
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Peer-Reviewed Papers


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