<dependency>
  <groupId>org.openscience.cdk</groupId>
  <artifactId>cdk</artifactId>
  <version>2.6</version>
  <type>pom</type>
</dependency>

implementation 'org.openscience.cdk:cdk:2.6'

implementation("org.openscience.cdk:cdk:2.6")

libraryDependencies += "org.openscience.cdk" % "cdk" % "2.6"

@Grapes(
  @Grab(group='org.openscience.cdk', module='cdk', version='2.6')
)

<dependency org="org.openscience.cdk" name="cdk" rev="2.6" />

[org.openscience.cdk/cdk "2.6"]

'org.openscience.cdk:cdk:jar:2.6'