4-Methylstyrene

Modify Date: 2024-01-05 08:32:57

4-Methylstyrene Structure
4-Methylstyrene structure
Common Name 4-Methylstyrene
CAS Number 622-97-9 Molecular Weight 118.17600
Density 0.897 g/mL at 25 °C(lit.) Boiling Point 170-175 °C(lit.)
Molecular Formula C9H10 Melting Point -34 °C
MSDS Chinese USA Flash Point 114 °F
Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08
Signal Word Danger

 Names

Name 4-Methylstyrene
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.897 g/mL at 25 °C(lit.)
Boiling Point 170-175 °C(lit.)
Melting Point -34 °C
Molecular Formula C9H10
Molecular Weight 118.17600
Flash Point 114 °F
Exact Mass 118.07800
LogP 2.63800
Vapour Pressure <1 mm Hg ( 20 °C)
Index of Refraction n20/D 1.542(lit.)

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WL5076000
CHEMICAL NAME :
Styrene, p-methyl-
CAS REGISTRY NUMBER :
622-97-9
BEILSTEIN REFERENCE NO. :
1209317
LAST UPDATED :
199710
DATA ITEMS CITED :
15
MOLECULAR FORMULA :
C9-H10
MOLECULAR WEIGHT :
118.19
WISWESSER LINE NOTATION :
1U1R D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2255 mg/kg
TOXIC EFFECTS :
Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression Gastrointestinal - other changes
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2324 mg/kg
TOXIC EFFECTS :
Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression Gastrointestinal - other changes
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1072 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
581 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
280 mg/kg
TOXIC EFFECTS :
Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression Gastrointestinal - other changes
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Gastrointestinal - nausea or vomiting Gastrointestinal - changes in structure or function of salivary glands Behavioral - tremor
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>5 mL/kg
TOXIC EFFECTS :
Skin and Appendages - dermatitis, other (after systemic exposure)

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Human Lymphocyte
DOSE/DURATION :
330 umol/L
REFERENCE :
CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House, Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980- Volume(issue)/page/year: 2,237,1981 *** REVIEWS *** IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 60,373,1994 IARC Cancer Review:Animal LACK CARCINOGENICITY IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 60,373,1994 IARC Cancer Review:Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 60,373,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2573 No. of Facilities: 460 (estimated) No. of Industries: 7 No. of Occupations: 10 No. of Employees: 5274 (estimated) No. of Female Employees: 377 (estimated)

 Safety Information

Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08
Signal Word Danger
Hazard Statements H226-H304-H315-H319-H335
Precautionary Statements P261-P301 + P310-P305 + P351 + P338-P331
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xn: Harmful;
Risk Phrases R10
Safety Phrases S26-S36-S62
RIDADR UN 2618 3/PG 3
WGK Germany 3
RTECS WL5076000
Packaging Group III
Hazard Class 3
HS Code 29029050

 Synthetic Route

 Customs

HS Code 2902909090
Summary 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

 Articles5

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Synthesis and study of cationic, two-coordinate triphenylphosphine-gold-π complexes.

Chemistry 19(25) , 8276-84, (2013)

Cationic, two-coordinate triphenylphosphine-gold(I)-π complexes of the form [(PPh₃)Au(π ligand)]⁺SbF₆⁻ (π ligand=4-methylstyrene, 1∙SbF₆), 2-methyl-2-butene (3∙SbF₆), 3-hexyne (6∙SbF₆), 1,3-cyclohexad...

Origin of threefold symmetric torsional potential of methyl group in 4-methylstyrene.

J. Chem. Phys. 124(14) , 144316, (2006)

To understand the effect of the para position vinyl group substitution in toluene on methyl torsion, we investigated 4-methylstyrene, a benchmark molecule with an extended pi conjugation. The assignme...

 Synonyms

1-ethenyl-4-methylbenzene
EINECS 210-762-8
MFCD00008621
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