Regex - Ignoring Spaces

Good morning... I'm fairly new to regular expressions and am trying to edit code that another developer built to accommodate some new text.  The way that the text is being saved in our new process is removing some of the spaces for some reason so I'm now needing to modify the Regex's to accommodate this change.  In the OLD Regex there are spaces in the statement where the spaces exist in the string... running this Regex on the new string returns nothing.  I updated the Regex to remove the spaces and it does work though I need this code to run against old and new strings.  I'm hoping that there is a way to modify the expression to work in both situations.  Any help would be appreciated.  Please let me know if you need additional clarification.

Thanks,
Greg

[b]CURRENT CODE[/b] - Note the space after Number:_   and after the number 440_

String being used "....Corporate Access Number: 201093440 \r\nLegal Entity Name...."
Regex canRegex = new Regex(@"Corporate Access Number: (?<desc>.+?) \r\nLegal Entity Name", RegexOptions.IgnoreCase, timeOut);

[b]NEW CODE[/b] - In the new version of the text the output removes the spaces in both places 

String being used "....Corporate Access Number:201100146\r\nLegal Entity Name...."
Regex canRegex = new Regex(@"Corporate Access Number:(?<desc>.+?)\r\nLegal Entity Name", RegexOptions.IgnoreCase, timeOut);

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