Environmental Reference Materials, Organics, Single Component Standards Azobenzene #1250 $93.00 – $198.00 1000 ug/mL in Methylene Chloride read more Options Choose an option4x1.5mL10X1.5mLClear Add to cart Compare Catalog Number: 1250 Options 4×1.5mL, 10X1.5mL Analyte COA's MSDS/SDS Analyte Azobenzene CAS# 103-33-3 COA's MSDS/SDS Related products Quick View Add to cart Compare $59.00 Environmental Reference Materials Iodide – 125mL #IC-051 Quick View Add to cart Compare $59.00 Environmental Reference Materials Cyanide – 125mL #IC-019 Quick View Add to cart Compare $59.00 Environmental Reference Materials Perchlorate CRM #IC-037 Quick View Add to cart Compare $59.00 Environmental Reference Materials Phosphate – 125mL #IC-040