Polystyrene

CAS Registry Number®

9003-53-6

CAS Name

Polystyrene

Molecular Formula

(C8H8)x

Molecular Mass

104.15

Cite this Page

Polystyrene.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=9003-53-6 (retrieved 2025-07-13) (CAS RN: 9003-53-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    154 °C @ Press: 7 Torr

  • Melting Point (2)

    240 °C

  • Density (2)

    1.04-1.13 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2

InChIKey

InChIKey=PPBRXRYQALVLMV-UHFFFAOYSA-N

SMILES

C(=C)C1=CC=CC=C1

Canonical SMILES

C=CC=1C=CC=CC1

Other Names for this Substance

  • Benzene, ethenyl-, homopolymer
  • Styrene, polymers
  • Lustrex
  • Polystyrene
  • Polystyrol F

View All

Deleted or Replaced CAS Registry Numbers

9044-64-8, 9055-91-8, 11120-46-0, 12627-11-1, 25038-60-2, 39470-87-6, 40494-15-3, 51609-83-7, 51609-87-1, 52932-49-7, 53112-49-5, 53986-84-8, 54578-24-4, 54596-41-7, 55128-06-8, 55465-00-4, 56451-72-0, 56748-62-0, 57657-06-4, 58033-91-3, 60120-16-3, 60328-46-3, 60880-98-0, 61584-89-2, 61584-90-5, 63849-49-0, 78354-47-9, 81834-12-0, 86090-91-7, 98444-30-5, 105270-05-1, 110866-50-7, 120037-99-2, 120534-26-1, 124229-31-8, 124229-48-7, 130243-06-0, 131495-39-1, 132827-43-1, 137262-45-4, 144637-93-4, 149212-19-1, 155197-45-8, 157243-21-5, 157929-02-7, 161776-45-0, 171022-02-9, 171022-09-6, 172641-48-4, 172867-64-0, 219782-52-2, 260975-79-9, 359762-95-1, 360046-70-4, 373601-20-8, 441772-62-9, 471865-10-8, 487021-46-5, 644984-36-1, 666836-48-2, 726192-11-6, 730985-59-8, 851588-70-0, 852837-17-3, 937162-73-7, 1083095-63-9, 1160710-79-1, 1187742-34-2, 1191987-17-3, 1192452-81-5, 1227265-55-5, 1263545-74-9, 1360862-30-1, 1397706-69-2, 1415127-06-8, 1415263-61-4, 1430218-84-0, 1462855-56-6, 1609008-94-7, 1620621-58-0, 1623021-11-3, 1633667-53-4, 1636918-11-0, 1691258-69-1, 1858177-20-4, 1887074-77-2, 1916433-35-6, 2015955-53-8, 2035446-93-4, 2058269-38-6, 2093331-60-1, 2093331-64-5, 2197947-17-2, 2751703-37-2, 2766186-63-2, 2766186-66-5, 2766186-70-1

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