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Chemplat Search In Help
How to search by
Product name
You may enter
product name in whole or in part as keywords into the search box. All
the following terms are valid for searching for the compound 8-Hydroxyquinoline
N-oxide:
8-Hydroxyquinoline N-oxide
Hydroxyquinoline
oxide
The more detailed the search terms
are, the easier to find the target product, while a concise and general
search word may show a wide range of results for a further selection. To
avoid returning too many unrelated results, only the boolean AND is used
in multiple keyword searching strings.For instance, when searching
methyl alcohol, propyl alcohol or methyl bromide will never be returned.
For accurate searching the double quotation mark can be used.
The keywords are not case-sensitive.
How to
search by CAS registry number
You must use
valid formats to enter a CAS number or its segments for search. Only
numbers and the dash mark are acceptable. The longest complete CAS
number has the form of 100000-00-0. The
first set of numbers may vary from 1 to 6 digits, while the third and
the second sets can only hold 1 and 2 digits, respectively. The
following valid search terms provide various results:
56839-43-1
39-43-1
43-1
In order to facilitate your search, please try to
use the CAS registry
number
How to
search by Molecular formula
The
acceptable character set for composing search terms by molecular formula
includes letters (A-Z, a-z) for element symbols, the period (.) and
parentheses as separator, and the comma(,) as the European decimal
point. Using any other characters will definitely lead to search
failure.
The element symbols are
capital-sensitive. Si and SI will be decoded as silicon and the unit of
sulfur and iodine, respectively. Blank spaces between element symbols
or numbers are allowed.There is no requirement for sequence of symbols.
In most cases a simple summarized form is recommended. For example, the
following two search terms are identical and will bring all products in
the database whose composition matches the formula or contains it as a
fragment:
C10H8O2
It should be noted that each symbols should be
summarized. For example, the search term C6H5OH
for phenol is invalid. The correct search terms are
C6H6O.
For ligand compounds or macro-molecules using the
format of fragments is more convenient. You should use the period to
separate segments, while each segment can be composed as same as in the
case of a simple molecule. In such a way you can decompose a complex
molecule into parts for easy understanding:
C9H13NO2.HCl
You can specify as many fragments as you like
provided that separating them with periods. You may use prefix or suffix
to define a multi-ligand unit. It should be noted that the prefix and
suffix must be used along with parentheses. Besides, there is only one
pair of parentheses allowed within one fragment. The following search
terms are invalid:For searching polymers non-numerical suffix m, n or k
are frequently used:
The term of searching for polyethylene:(CH2)m
The term of searching for poly(ether sulfone):
(C14H20NO11Na)n |