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   NP-MRD (Beta) is still undergoing development. Please feel free to explore and use the database. But the interface is still being refined and the deposition might be slow. Please provide us with your feedback.

NP-MRD supports advanced searching using a powerful search engine based on the Lucene query language. NP-MRD text search supports boolean logic (AND, OR, NOT operations). To match a string exactly, place quotes around your search term (for example "acetic acid" will only match the acetic followed by acid, it will not match acetic or acid alone). You can also search using "wild cards" by inserting a "*" in your search term. For example, searching for "acet*" will match all words starting with "acet". In addition, text search supports parenthetical groupings, and prepended +plus and -minus operators.

StrychnineFind all entries containing Strychnine in the NP-Card
(histidine OR poultry) AND NOT glycolylneuraminicFind all natural products containing histidine, poultry or both, but not containing glycolylneuraminic
"acetic acid"Find all natural products where the entire term "acetic acid" is found. In other words, don't match "acetic" or "acid" alone.