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Substance Name: Styrene
RN: 100-42-5
UNII: 44LJ2U959V
InChIKey: PPBRXRYQALVLMV-UHFFFAOYSA-N
Note
- A colorless, toxic liquid with a strong aromatic odor. It is used to make rubbers, polymers and copolymers, and polystyrene plastics.
Molecular Formula
- C8-H8
Molecular Weight
- 104.151
- All
- Classifications
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- Names & Synonyms
- Registry Numbers
- Structure Descriptors
- Toxicity
- Physical Properties
Classification Codes
Classification Codes
- Human Data
- Mutation Data
- Reproductive Effect
- Skin / Eye Irritant
- Tumor Data
Superlist Classification Codes
- 2007 CERCLA Priority List, Rank: 271
- 2011 CERCLA Priority List, Rank: 273
- Overall Carcinogenic Evaluation: Group 2B
- Reportable Quantity (RQ) = 1000 lb
- TWA (20 ppm); STEL (40 ppm); Not classifiable as a human carcinogen; BEI
- TWA 100 mg/m3; Ceiling 200 mg/m3, peak 300 in 5 min in any
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Names and Synonyms
Name of Substance
- Styrene
MeSH Heading
- Styrene
Synonyms
- AI3-24374
- Benzene, vinyl-
- Bulstren K-525-19
- CCRIS 564
- Cinnamene
- EC 202-851-5
- EINECS 202-851-5
- Ethenylbenzene
- Ethylene, phenyl-
- FEMA No. 3233
- FEMA Number 3234
- HSDB 171
- NCI-C02200
- NSC 62785
- Phenethylene
- Phenylethene
- Phenylethylene
- Stirolo
- Stirolo [Italian]
- Styreen
- Styreen [Dutch]
- Styren
- Styren [Czech]
- Styrene
- Styrene monomer
- Styrol
- Styrol [German]
- Styrole
- Styrolene
- Styropol SO
- UNII-44LJ2U959V
- Vinyl benzene
- Vinylbenzen
- Vinylbenzen [Czech]
- Vinylbenzen [Dutch]
- Vinylbenzene
- Vinylbenzol
Systematic Names
- Benzene, ethenyl-
- Styrene
Superlist Names
- Benzene, ethenyl-
- Phenylethylene
- Phenylethylene, inhibited
- Styrene
- Styrene (monomer)
- Styrene monomer
- Styrene monomer, inhibited
- Styrene monomer, inhibited [UN2055] [Flammable liquid]
- UN2055
- Vinyl benzene
- Vinylbenzene, inhibited
Registry Numbers
CAS Registry Number
- 100-42-5
FDA UNII
- 44LJ2U959V
Other Registry Numbers
- 1161074-30-1
- 1198090-46-8
- 1453489-93-4
- 1646200-96-5
- 2015955-51-6
- 79637-11-9
System Generated Number
- 0000100425
Structure Descriptors
InChI
InChI=1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2InChIKey
PPBRXRYQALVLMV-UHFFFAOYSA-NSmiles
C=Cc1ccccc1Toxicity
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LCLo | inhalation | 12gm/m3/14H (12000mg/m3) | BEHAVIORAL: MUSCLE WEAKNESS BEHAVIORAL: ANTIPSYCHOTIC SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE | Journal of Industrial Hygiene and Toxicology. Vol. 24, Pg. 295, 1942. |
| human | LCLo | inhalation | 10000ppm/30M (10000ppm) | "Practical Toxicology of Plastics," Lefaux, R., Cleveland, OH, Chemical Rubber Co., 1968Vol. -, Pg. 77, 1968. | |
| human | TCLo | inhalation | 20ug/m3 (0.02mg/m3) | SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 26(8), Pg. 11, 1961. |
| human | TCLo | inhalation | 376ppm/1H (376ppm) | BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) | Archives of Environmental Health. Vol. 16, Pg. 656, 1968. |
| human | TCLo | inhalation | 600ppm (600ppm) | SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE | AMA Archives of Industrial Health. Vol. 14, Pg. 387, 1956. |
| mammal (species unspecified) | LD50 | oral | > 1500mg/kg (1500mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 39(4), Pg. 86, 1974. | |
| mouse | LC50 | inhalation | 9500mg/m3/4H (9500mg/m3) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 106, 1982. | |
| mouse | LD50 | intraperitoneal | 660mg/kg (660mg/kg) | Arzneimittel-Forschung. Drug Research. Vol. 19, Pg. 617, 1969. | |
| mouse | LD50 | intravenous | 90mg/kg (90mg/kg) | Arzneimittel-Forschung. Drug Research. Vol. 19, Pg. 617, 1969. | |
| mouse | LD50 | oral | 316mg/kg (316mg/kg) | Progress Report for Contract No. NIH-NCI-E-C-72-3252, Submitted to the National Cancer Institute by Litton Bionetics, Inc. Vol. NCI-E-C-72-3252, Pg. 1973, | |
| rabbit | LCLo | inhalation | 4000ppm/4H (4000ppm) | Union Carbide Data Sheet. Vol. 12/13/1963, | |
| rat | LC50 | inhalation | 12gm/m3/4H (12000mg/m3) | Archives of Environmental Health. Vol. 18, Pg. 878, 1969. | |
| rat | LD50 | intraperitoneal | 898mg/kg (898mg/kg) | Environmental Research. Vol. 40, Pg. 411, 1986. | |
| rat | LD50 | oral | 2650mg/kg (2650mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LIVER: OTHER CHANGES | Science Reports of the Research Institutes, Tohoku University, Series C: Medicine. Vol. 36(1-4), Pg. 10, 1989. |
Physical Properties
| Physical Property | Value | Units | Temp (deg C) | Source |
|---|---|---|---|---|
| Melting Point | -3.10E+01 | deg C | EXP | |
| Boiling Point | 145 | deg C | EXP | |
| log P (octanol-water) | 2.95 | (none) | EXP | |
| Water Solubility | 310 | mg/L | 25 | EXP |
| Vapor Pressure | 6.4 | mm Hg | 25 | EXP |
| Henry's Law Constant | 0.00275 | atm-m3/mole | 25 | EXP |
| Atmospheric OH Rate Constant | 5.80E-11 | cm3/molecule-sec | 25 | EXP |
Physical property data is provided to ChemIDplus by SRC, Inc.