2-(4-Nonylphenoxy)acetic acid isomer mixture,10 µg/mL,isooctane,1mL,

2,2',4,4'-Tetrabromo-6-hydroxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

SPCC Class I - Method 8261

Tetrabromo[13C6]phthalic anhydride, 1.2ml x 50ug/ml, toluene