Form:Supplied as a liquid in 0.5% BSA, 0.09% sodium azide. Labeled with Fluorescein isothiocyanate (FITC).
Specificity:Recognizes rat CD172a, also known as Signal regulatory protein (SIRP). CD172a is expressed selectively by myeloid cells and by neurons. 3H1939 binds to a different epitope on SIRP than ED9.