Howdy,
I can't say anything about the non-crossreactivity of the AB, but
you might contact Chemicon in the U.K. or Brunschwig Chemie in
the Netherlands they both list many different anti mouse IgM ABs
in Linscott's Directory of Immunological & Biological Reagents.
If you would like more information about our directory which
lists more than 17,000 monoclonals, 15,000 antisera and 21,000
other reagents, contact us at:
Linscott's Directory
Box 188, s-79124 Falun, Sweden
Tel. +46 23 39231 Fax +46 23 39232
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European Office of:
Linscott's Directory of Immunological and Biological Reagents
Box 188, S-79124 Falun, Sweden
Tel. +46 23 39231 Fax. +46 23 39232