This index includes all of the CAS Registry Numbers in the Reg. No. field on the data sheets.
It also contains Registry Numbers for the simple salt and ester derivatives that are listed in the Notes field on the data sheets.
Use the navigation table just below the title to display the appropriate place in the index in the left-hand frame, e.g. click “1000” to display a range of Registry Numbers starting at 1000-00-0, or click “130K” to display Registry Numbers starting at 130000-00-0.
Scroll down the left-hand frame until you find the Registry Number you want, and then click the pesticide name just below it in order to display the data sheet in the main frame.
Registry Numbers are composed of 3 groups of numbers separated by hyphens. The first group is 2-6 digits, the second is 2 digits, and the third group is a single-digit check character. Registry Numbers are sorted in ascending numerical order on the first group of numbers, with the second group of numbers used as a secondary sort key when necessary. This produces the order:
55-38-9
55-98-1
1014-69-3
1014-70-6
30043-49-3
30043-55-1
205510-53-8
CAS Registry Number® is a Registered Trademark of the American Chemical Society.