diff --git a/manifests/c/ChemAxon/jchemdotnetapi/20.21.0/ChemAxon.jchemdotnetapi.yaml b/manifests/c/ChemAxon/jchemdotnetapi/20.21.0/ChemAxon.jchemdotnetapi.yaml
deleted file mode 100644
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--- a/manifests/c/ChemAxon/jchemdotnetapi/20.21.0/ChemAxon.jchemdotnetapi.yaml
+++ /dev/null
@@ -1,26 +0,0 @@
-PackageIdentifier: ChemAxon.jchemdotnetapi
-PackageName: Jchem .NET api
-Publisher: ChemAxon
-Author: ChemAxon
-ShortDescription: API usage of JChem Base in .NET & MarvinSketch and MarvinView with GUI support in .NET.
-Tags:
-- chemistry
-- organic chemistry
-- chemdraw
-- molecule
-- jchem
-- dotnet
-- api
-- marvin
-PackageUrl: https://chemaxon.com/products/dotnet-connectors/download
-License: Copyright (c) Chemaxon
-LicenseUrl: https://docs.chemaxon.com/display/docs/End+User+License+Agreement
-PackageVersion: 20.21.0
-InstallerType: msi
-Installers:
-- Architecture: x64
-  InstallerUrl: https://dl.chemaxon.com/jchem-net-api/20.21.0/JChem_NET_API_20.21.0.x64.msi
-  InstallerSha256: 17e72363330ca2da6beb3c00a6295a09cb873a1c762f14bc2b2e3a3fea7fb580
-PackageLocale: en-US
-ManifestType: singleton
-ManifestVersion: 1.0.0