Step |
Do the following: |
1 |
Select Advanced Search.
|
2 |
The Search Page appears. Select databases in a specific
technology category by clicking
|
3 |
The technology category options appear. Select
|
4 |
The Search Page reappears. From the drop-down menus
in the Search Term entry area, select Molecular Formula.
Type the formula in the associated entry box.
For good recall, it may be important to consider variations
in molecular formula format. |
5 |
Option: Verify the formula.
Click |
6 |
Click |
7 |
The Answer Page appears.
Molecular formula searches often retrieve more than one match.
To focus on matches with attributes of interest, click |
8 |
The Refine Page appears. Add a chemical name fragment
to the search requirements.
Tip: Use chemical name fragments describing a unique
attribute of the chemical substance.
From the drop-down menus in the Search Term area, select
AND from the combining operators and Words from
the search term descriptor. Type the name fragment in the associated
entry box.
|
9 |
Click |
10 |
The Answer Page reappears.
|
Identifiers from REGISTRY
in Most Recent Order |
Molecular Formula |
1 |
2,5-Cyclohexadiene-1,4-dione,
3,5-dibromo-2-methyl- (9CI) (CA INDEX NAME)
3,5-Dibromo-2-methyl-1,4-benzoquinone |
C7 H4 Br2
O2 |
2 |
Benzoic
acid, 3,5-dibromo- (6CI, 8CI, 9CI) (CA INDEX NAME)
3,5-Dibromobenzoic
acid |
C7 H4
Br2 O2 |
Click on the substance hyperlink of interest. |
9 |
The REGISTRY Display Page appears. |