CAS:9003-53-6 Molecular Formula:[CH2CH(C6H5)]n Molecular Weight:2.01588 EINECS:202-851-5 Mashoko anoreva zvakafanana:POLYSTYRENE STANDARD 2'000 CERTIFIED ; POLYSTYRENE, BHARA, AVERAGE DIAMETER 0.4 6UM, 10 WT. % KUNYUKA MUMVURA; MALDI VALIDATION SET POLYSTYRENE MP 500- 70000 CERTIFIED; POLYSTYRENE STANDARD 200'000; Polystyrene standard, yeGPC, yakajairika MW 2,000,000; Polystyrene standard, yeGPC, yakajairika MW 4,000; POLYSTYRENE STANDARD 650000 AC C. KUTI DIN