CAS 100-42-5 appears in our catalog under these names: Styrene 100 µg/mL in Methanol, Styrene, Concentration: 100 µg/ml Solvent: Methanol, Styrene, Styrene 2000 µg/mL in Methanol, Styrene 5000 µg/mL in Methanol. Offered by: Dr. Ehrenstorfer, HPC Standards, Chemat Brand, Hubei YoungXin, TRC. Available pack sizes: 1ml, 1x5ml, on request, 10mg, 25mg, 50mg, 100mg, 200mg.