In the search box, you can see support CAS number, name, chemical formula three query methods, when input what type of character channed to determine the input is CAS number, and in accordance with the character CAS good way to search! See the following example.

First, enter nothing or just space: The first three digits of the CAS number will be randomly searched.

Second, enter an incorrect CAS number, such as: 0000050-0, 50-010, 50-00-1, 40-11- : will be in accordance with the CAS number search, search results are displayed for you 0 most relevant results!

Third, input a correct CAS number beginning, such as: 50-0, 50-00, 50-00-1 40000- : will be searched according to the CAS number, there will be a corresponding result. For example, 40000- search results show you the 10 most relevant results. For example, 40000 search results show you the 22 most relevant results. If you look at the search results, you will see that the CAS numbers in the results all start with the string entered. For example, CAS number 400009-80-5 begins with 40000, and the number retrieved will not exceed 100!