Similar term(s): Arochlor 1254.
Aroclor 1254 is one of several commercial PCB mixtures that were marketed between the 1930s and 70s.
This light yellow viscous liquid is a particularly highly chlorinated PCB mixture which, by definition, contains 54% chlorine by weight.
Environmental Health Perspectives
Differential Effects of Two Lots of Aroclor 1254
Aroclor 1254 has been extensively used and dispersed from industrial applications worldwide and its effects have been widely studied.
For more details on the composition of differents Aroclor mixtures, see: CICAD 55 (table 4)
To read about this term in context:
GreenFacts Summary on PCBs Polychlorinated biphenyls: