Advanced Search System: Enter Search Conditions Page
General Search, Search Options
To search for substances, you can enter the following query terms; "CAS Registry Number®"(CAS No.), "Substance Name" and/or "Molecular Formula". When you enter more than one query term, only substances that are relevant to all your search terms will be retrieved.
You can select categories by checking categories you want to search from <Search by category>. In addition, you can set more complexed search conditions from "Search Options" by clicking and switching to the "Search Options" tab.
Keyword
Search by Number
Enter a CAS Registry Number in the "Search by Number" field.
In the case of the "Search Options", you can use a wild card either "*" or "?".
"*": Matches any number of characters.
"?": Matches any single character in a specified location.
| Half-sized or full-sized number, number with or without hyphen |
CAS No. 50-00-0: 50-00-0, 50000 |
| Half-sized or full-sized six number, number with or without dot |
HS Code 2801.10: 2801.10, 280110 |
Search by Name
Enter a substance name in the "Search by Name" field. You can enter multiple keywords which need to be separated with space. If you select "Exact Match" in the list box, only substances that include all of your search terms will be retrieved. Alternatively, selecting "partial match" allows you to search all substances that include either of your search terms.
When you enter keywords in some fields, or when you search by both <Keyword> and <Search by category>, only substances which meet all conditions will be searched.
In the case of the "Search Options", you can use a wild card either "*" or "?".
"*": Matches any number of characters.
"?": Matches any single character in the specified location.
Search by Molecular Formula
Please enter a molecular formula with alphanumeric symbols in the "Search by Molecular Formula" field by Hill method. In this method, substance containing carbon is described in the following order: the first is "C", and the next is "H", and other elements follow them in alphabetical order. Substance not containing carbon is described in alphabetical order with no exception.
Display Setting
Interim Search Results
You can change the display format of Interim Search Results as indicated below.
| Select "Yes" or "No" from the pull-down menus to display or not to display structures in the Interim Search Results. |
| Select a number of substances which you want to display in one page from the pull-down menu. |
Search Results Display
You can change the display format of "Search Results". The default setting is "Excluding blank data". To add empty items, check "Including blank data".
Search by Structure
(Approximately 30,000 chemical structures)
You can search substances by structure from "Search Options" page.
| Enter a structure as SMILES. |
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Select a structure file ("MOL (.mol)" or "SMILES (.smi)") from the pull-down menu. Enter the File Pass into the text box below and click on the load button. The system will display a structural formula based on the structure file.
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Select one search method among three (Substructure Match, Exact Match and Similarity Match). If you use the "Similarity Match", please enter the percentage of structural similarity (percentage of similarity) (%).
Similarity Match Method is only "Tanimoto".
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| Enter ranges for molecular weight in the "Molecular Weight" field |
Search by Category
You can select categories by checking the categories you want to search.
When you click on two or more categories, all substances relevant to categories you checked will be retrieved. The categories and information sources are as follows:
- Law on Controlling of Drugs, 2012
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