2,5-dimethylstyrene

Modify Date: 2025-08-24 20:43:02

2,5-dimethylstyrene Structure
2,5-dimethylstyrene structure
 Common Name 2,5-dimethylstyrene
CAS Number 2039-89-6 Molecular Weight 132.20200
Density 0.904 g/mL at 25 °C(lit.) Boiling Point 71-72 °C10 mm Hg(lit.)
Molecular Formula C10H12 Melting Point −35 °C(lit.)
MSDS USA Flash Point 147 °F
Symbol GHS07
GHS07		 Signal Word Warning

 Names

Name 2-ethenyl-1,4-dimethylbenzene
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.904 g/mL at 25 °C(lit.)
Boiling Point 71-72 °C10 mm Hg(lit.)
Melting Point −35 °C(lit.)
Molecular Formula C10H12
Molecular Weight 132.20200
Flash Point 147 °F
Exact Mass 132.09400
LogP 2.94640
Vapour Pressure 0.628mmHg at 25°C
Index of Refraction n20/D 1.539(lit.)
Storage condition Keep Cold

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WL4460000
CHEMICAL NAME :
Styrene, 2,5-dimethyl-
CAS REGISTRY NUMBER :
2039-89-6
BEILSTEIN REFERENCE NO. :
2203656
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C10-H12
MOLECULAR WEIGHT :
132.22
WISWESSER LINE NOTATION :
1U1R B1 E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
28ZRAQ "Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960 Volume(issue)/page/year: -,58,1960

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xi: Irritant;
Risk Phrases R36/37
Safety Phrases S26-S36/37/39
RIDADR 1993
WGK Germany 3
RTECS WL4460000
HS Code 2902909090

 Synthetic Route

2-Chloro-1,4-dimethylbenzene structure

2-Chloro-1,4-di...

CAS#:95-72-7

(6-Butyl-5-decen-5-yl)-λ2-stannane structure

(6-Butyl-5-dece...

CAS#:7486-35-3

~72%

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: Littke, Adam F.; Schwarz, Lothar; Fu, Gregory C. Journal of the American Chemical Society, 2002 , vol. 124, # 22 p. 6343 - 6348
1-(2,5-DIMETHOXYBENZYL)PIPERAZINEHYDROCHLORIDE structure

1-(2,5-DIMETHOX...

CAS#:32917-52-5

~%

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: Gazzetta Chimica Italiana, , vol. 89, p. 1749,1759 Journal of the American Chemical Society, , vol. 78, p. 322,324
N/A structure

N/A

CAS#:1835-85-4

Ethanoic anhydride structure

Ethanoic anhydride

CAS#:108-24-7

~6%

S-2,5-dimethyl-4-vinylphenyl ethanethioate structure

S-2,5-dimethyl-...

CAS#:1004519-12-3

bis(2,5-dimethyl-4-vinylphenyl)sulfane structure

bis(2,5-dimethy...

CAS#:1004519-21-4

Detail
Literature: Tetrahedron Letters, , vol. 48, # 52 p. 9144 - 9147
2,5-Dimethylbenzaldehyde structure

2,5-Dimethylben...

CAS#:5779-94-2

Methyltriphenylphosphonium bromide structure

Methyltriphenyl...

CAS#:1779-49-3

~%

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: Journal of the American Chemical Society, , vol. 134, # 29 p. 11900 - 11903
bis-[1-(2,5-dimethyl-phenyl)-ethyl]-ether structure

bis-[1-(2,5-dim...

CAS#:110663-93-9

~%

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: Naturwissenschaften, , vol. 44, p. 584
2',5'-dimethylacetophenone structure

2',5'-dimethyla...

CAS#:2142-73-6

~%

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: Zhurnal Organicheskoi Khimii, , vol. 7, # 5 p. 992 - 996,1011 - 1015
1,1-bis-(2,5-dimethyl-phenyl)-ethane structure

1,1-bis-(2,5-di...

CAS#:10224-93-8

~%

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: US2420689 , ;
1,1-bis-(2,5-dimethyl-phenyl)-ethane structure

1,1-bis-(2,5-di...

CAS#:10224-93-8

~%

p-Xylene structure

p-Xylene

CAS#:106-42-3

2,5-dimethylstyrene Structure

2,5-dimethylstyrene

CAS#:2039-89-6

Literature: US2420689 , ;

 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%

 Synonyms

2-ethenyl-1,4-dimethyl-benzene
MFCD00008614
Benzene,2-ethenyl-1,4-dimethyl
Styrene,2,5-dimethyl
2,5-Dimethylstyrene
1,4-Dimethyl-2-vinylbenzene
EINECS 218-028-9
o-vinyl-p-xylene
2-vinyl-p-xylene
1,4-Dimethyl-2-ethenylbenzene
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