diff --git a/manifests/c/ChemAxon/jchemdotnetapi/20.19.0/ChemAxon.jchemdotnetapi.yaml b/manifests/c/ChemAxon/jchemdotnetapi/20.19.0/ChemAxon.jchemdotnetapi.yaml
deleted file mode 100644
index e8332a0ae..000000000
--- a/manifests/c/ChemAxon/jchemdotnetapi/20.19.0/ChemAxon.jchemdotnetapi.yaml
+++ /dev/null
@@ -1,23 +0,0 @@
-PackageIdentifier: ChemAxon.jchemdotnetapi
-Publisher: ChemAxon
-PackageName: Jchem .NET api
-PackageVersion: 20.19.0
-Tags:
-- chemistry
-- organic chemistry
-- chemdraw
-- molecule
-- jchem
-- dotnet
-- api
-- marvin
-ShortDescription: API usage of JChem Base in .NET & MarvinSketch and MarvinView with GUI support in .NET.
-License: Copyright (c) ChemAxon
-Installers:
-- Architecture: x64
-  InstallerUrl: https://dl.chemaxon.com/jchem-net-api/20.19.0/JChem_NET_API_20.19.0.x64.msi
-  InstallerSha256: 205c04047fff9659bc5c883b310322f6cb4b78f986a6037715aa7bdd70d64167
-  InstallerType: msi
-PackageLocale: en-US
-ManifestType: singleton
-ManifestVersion: 1.0.0