C07C43/257 - CPC Classification Index

ClassID:

91397 ⎘

C07C43/257 - CPC Classification

Classification description:

Ethers; Compounds having groups, groups or groups; Ethers having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings

Sub-classes:

C07C43/263 » the aromatic rings being non-condensed 22
C07C43/267 » containing other rings 4
C07C43/275 » having all ether-oxygen atoms bound to carbon atoms of six-membered aromatic rings 70
C07C43/285 » having unsaturation outside the six-membered aromatic rings 23
C07C43/29 » containing halogen 87
C07C43/295 » containing hydroxy or O-metal groups 73

Recent Application in this class:

20190031586

2019-01-31

Organic compound, three-dimensional organic framework formed by using organic compound, separation sieve and optical layer, which comprise organic framework, and optical device comprising optical layer as optical amplification layer