Error after using Xrm.Utility.openEntityForm

Hi All,
I have small exemple

var parameters = {};
parameters['name'] = "<test>";
Xrm.Utility.openEntityForm("opportunity", null, parameters);

This example produces an error:

"System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: Expected 'SafeString' data type for 'name' parameter in 'Request.QueryString'..."

I know a problem consists in a symbol '<' after which any other symbol follows.

I hope that someone will be able to help me to deal with this problem.