diff --git a/manifests/c/ChemAxon/jchemdotnetapi/21.2.0/ChemAxon.jchemdotnetapi.yaml b/manifests/c/ChemAxon/jchemdotnetapi/21.2.0/ChemAxon.jchemdotnetapi.yaml
deleted file mode 100644
index 9d516ef85..000000000
--- a/manifests/c/ChemAxon/jchemdotnetapi/21.2.0/ChemAxon.jchemdotnetapi.yaml
+++ /dev/null
@@ -1,27 +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
-- development
-PackageUrl: https://chemaxon.com/products/dotnet-connectors/download
-License: Copyright (c) Chemaxon
-LicenseUrl: https://docs.chemaxon.com/display/docs/End+User+License+Agreement
-PackageVersion: 21.2.0
-InstallerType: msi
-Installers:
-- Architecture: x64
-  InstallerUrl: https://dl.chemaxon.com/jchem-net-api/21.2.0/JChem_NET_API_21.2.0.x64.msi
-  InstallerSha256: ae7c91420b80d996af528b303339059f0868d03691087e1649258c95b0858a82
-PackageLocale: en-US
-ManifestType: singleton
-ManifestVersion: 1.0.0