KNApSAcK Core System

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Incorporation to program:[item]&word=[keyword]

Here, [item] must be selected from one of the following words; "organism", "metabolite", "formula", "C_ID", and "CAS_ID".

< Example 1 >

Information on the metabolite assigned to C00000001 (a C_ID) can be retrieved by

< Example 2 >

The reported metabolites in Bacillus (an organism) can be retrieved by

Words for organisms or metabolites can be retrieved by providing at least three characters that forward matches with their strings.

CAUTION: (C) Any content included in KNApSAcK database cannot be re-distributed or used for commercial purposes by any user without contacting with KNApSAcK DB group (

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ALL Types Organism Metabolite Molecular formula

last update 2018/06/29
metabolite 51179 entries
metabolite-species pair 116315 entries
species 22944 entries