C07C309/72 - CPC Classification Index

ClassID:

93396 ⎘

C07C309/72 - CPC Classification

Classification description:

Sulfonic acids; Halides, esters, or anhydrides thereof; Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton

Sub-classes:

C07C309/73 » to carbon atoms of non-condensed six-membered aromatic rings 220
C07C309/74 » to carbon atoms of six-membered aromatic rings being part of condensed ring systems 7
C07C309/75 » containing singly-bound oxygen atoms bound to the carbon skeleton 54
C07C309/76 » containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton 26
C07C309/77 » containing carboxyl groups bound to the carbon skeleton 18

Recent Application in this class:

20250296912

2025-09-25

AFFINITY ILLUDOFULVENE CONJUGATES

20230212113

2023-07-06

Affinity illudofulvene conjugates

20210393671

2021-12-23

Pharmaceutical compositions of lipoic acid choline ester salts and methods of treatment using same

20210283171

2021-09-16

Pharmaceutical compositions of lipoic acid choline ester salts and methods of treatment using same

20210155583

2021-05-27

Affinity illudofulvene conjugates

20200239344

2020-07-30

Composition and method for controlling scale in industrial water systems

20190006703

2019-01-03

Electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same

20110236827

2011-09-29

RESIN AND PHOTORESIST COMPOSITION CONTAINING THE SAME

20110183258

2011-07-28

Positive resist composition, pattern forming method using the composition, and compound for use in the composition

#10

20110039701

2011-02-17

Phenyl-substituted bicyclooctane-1,3-dione derivatives