!!! Overview
[{$pagename}] is a [Microsoft Active Directory] [LDAPSyntaxes] defined in [Draft-armijo-ldap-syntax-00] with an [OID] of [1.2.840.113556.1.4.1221]


[{$applicationname}]  also found where it is referred to as [CaseIgnoreString][1]

[{$pagename}] is also defined as an [OID] of [2.5.5.7]

%%prettify 
{{{
OR-Name: 1.2.840.113556.1.4.1221
        Encoded as:
        ORName = DN | "X400:" ORaddress "#X500:" DN | "X400:"ORaddress
        DN = normally encoded rfc 1779 name
        ORaddress = some string encoding for OR addresses.
}}} 
/%
%%information
[{$pagename}] requires an unescaped # character [MUST NOT] be legal in this encoding. \\This is necessary to be able to identify where the #[X.500] starts if the middle choice of the [Encoding] is chosen.

%%

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [Data Type Mapping between Active Directory and LDAP|https://msdn.microsoft.com/en-us/library/aa772375(v=vs.85).aspx|target='_blank'] - based on information obtained 2018-04-15-