CAS:9003-53-6 Fuafua mole:[CH2CH(C6H5)]n Molecular Weight:2.01588 EINECS:202-851-5 upu uiga tutusa:POLYSTYRENE STANDARD 2'000 FA'AMANATU ; POLYSTYRENE, LONO, TAMETERA 0.4 6UM, 10 WT. % FA'ATA'UPU I LE VAI; MALDI VALIDATION SET POLYSTYRENE MP 500- 70000 CERTIFIED; POLYSTYRENE STANDARD 200'000; Polystyrene tulaga, mo GPC, masani MW 2,000,000; Polystyrene tulaga, mo GPC, masani MW 4,000; POLYSTYRENE STANDARD 650000 CERTIFIED AC C. TO DIN