ChemicalBook > CAS DataBase List > 1,2,4-Trimethylbenzene

1,2,4-Trimethylbenzene

Product Name
1,2,4-Trimethylbenzene
CAS No.
95-63-6
Chemical Name
1,2,4-Trimethylbenzene
Synonyms
TRIMETHYLBENZENE;PSC;pseudo;PSI-CUMENE;PSEUDOCUMENE;1,2,4-trimethyl-benzen;1,3,4-TRIMETHYLBENZENE;1,2,5-Trimethylbenzene;Benzene,1,2,4-trimethyl-;1,2,4-trimethylbenzene (pseudocumene)
CBNumber
CB0854702
Molecular Formula
C9H12
Formula Weight
120.19
MOL File
95-63-6.mol
More
Less

1,2,4-Trimethylbenzene Property

Melting point:
-44 °C
Boiling point:
168 °C(lit.)
Density 
0.876 g/mL at 20 °C(lit.)
vapor density 
4.1 (vs air)
vapor pressure 
4.5 mm Hg ( 37.7 °C)
refractive index 
n20/D 1.504(lit.)
Flash point:
120 °F
storage temp. 
Store below +30°C.
solubility 
0.057g/l
form 
Liquid
pka
>14 (Schwarzenbach et al., 1993)
color 
Clear colorless
Odor
char. aromatic odor
explosive limit
0.8-7%(V)
Odor Threshold
0.12ppm
Water Solubility 
Soluble in alcohol, benzene and ether. Slightly soluble in water
Merck 
14,7915
BRN 
1903005
Henry's Law Constant
6.946, 11.202, and 15.702 at 27.0, 35.0, and 45.0 °C, respectively (dynamic headspace, Hansen et al., 1995)
Exposure limits
NIOSH REL: TWA 25 ppm (125 mg/m3); ACGIH TLV: TWA for mixed isomers 25 ppm (adopted).
Dielectric constant
2.4(16℃)
Stability:
Stable. Incompatible with strong oxidizing agents. Flammable. May form explosive mixtures with air.
InChIKey
GWHJZXXIDMPWGX-UHFFFAOYSA-N
LogP
3.630
CAS DataBase Reference
95-63-6(CAS DataBase Reference)
EPA Substance Registry System
1,2,4-Trimethylbenzene (95-63-6)
More
Less

Safety

Hazard Codes 
Xn,N,F,Xi,T
Risk Statements 
10-20-36/37/38-51/53-39/23/24/25-23/24/25-11-65
Safety Statements 
26-61-45-36/37-16-7-62
RIDADR 
UN 3295 3/PG 3
OEB
A
OEL
TWA: 25 ppm (125 mg/m3)
WGK Germany 
2
RTECS 
DC3325000
Autoignition Temperature
959 °F
Hazard Note 
Irritant/Flammable
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29029090
Hazardous Substances Data
95-63-6(Hazardous Substances Data)
Toxicity
LD50 i.p. in male, female mice (mg/kg): 5000, 4100 (Janik-Spiechowicz)
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H226Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
T73601
Product name
1,2,4-Trimethylbenzene
Purity
98%
Packaging
2l
Price
$146
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14505
Product name
1,2,4-Trimethylbenzene
Purity
for synthesis
Packaging
100mL
Price
$25
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14505
Product name
1,2,4-Trimethylbenzene
Purity
for synthesis
Packaging
500mL
Price
$49.9
Updated
2024/03/01
Sigma-Aldrich
Product number
47324
Product name
1,2,4-Trimethylbenzene
Purity
analytical standard
Packaging
1000mg
Price
$36.9
Updated
2024/03/01
Sigma-Aldrich
Product number
45996
Product name
1,2,4-Trimethylbenzene
Purity
analytical standard
Packaging
250mg
Price
$15.7
Updated
2022/05/15
More
Less

1,2,4-Trimethylbenzene Chemical Properties,Usage,Production

Description

1,2,4-Trimethylbenzene (mesitylene) is an aromatic hydrocarbon compound commonly present in commercial solvents encompassing their boiling range. Mesitylene are the most common isomer used in commercial applications. Aromatic hydrocarbons in hydrocarbon solvents are predominantly alkylated one ring structures as well as two aromatic ring structures which may also be alkylated.

Chemical Properties

colourless liquid. Insoluble in water, soluble in ethanol, ether and benzene.

Physical properties

Colorless liquid with a slight aromatic odor. A detection odor threshold concentration of 12 mg/m3 (2.4 ppmv) was experimentally determined by Dravnieks (1974).

Uses

1,2,4-Trimethylbenzene is the unlabelled version of 1,2,4-Trimethyl 13C6-benzene (T796173), a labelled aromatic standard.

Uses

Sterilizing catgut by heating one hour at 160°; solvent in manufacture of dyes, perfumes and resins. Solvent for liquid scintillation counting solutions.

Definition

ChEBI: 1,2,4-trimethylbenzene is a trimethylbenzene carrying methyl groups at positions 1, 2 and 4. It has a role as a neurotoxin.

Synthesis Reference(s)

Journal of the American Chemical Society, 73, p. 766, 1951 DOI: 10.1021/ja01146a079
Chemical and Pharmaceutical Bulletin, 34, p. 540, 1986 DOI: 10.1248/cpb.34.540

General Description

A liquid. Flash point near 130°F. Less dense than water and insoluble in water. Vapors irritate eyes, throat, and nose. Used in dyes and pharmaceuticals.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

1,2,4-Trimethylbenzene is incompatible with the following: Oxidizers, nitric acid .

Hazard

Moderate fire risk. Central nervous system depressant, irritant to mucous membranes. Asthma and hematologic effects.

Health Hazard

Harmful if inhaled or swallowed. Vapor or mist is irritating to the eyes, mucous membrane and upper respiratory tract. Prolonged contact can cause dermatitis, nausea, headache, dizziness, and narcotic effect.

Safety Profile

Moderately toxic by intraperitoneal route. Mildly toxic by inhalation. Can cause central nervous system depression, anemia, bronchitis. Flammable liquid when exposed to heat, sparks, or flame. To fight fire, use foam, alcohol foam, mist. Emitted from modern building materials (CENEAR 69,22,91). When heated to decomposition it emits acrid smoke and irritating fumes.

Toxicology

Acute toxicity studies (oral, dermal and inhalation routes of exposure) have been conducted in rats. Oral LD50 values of greater than 5000 mg/kg have been reported. For solvent products containing predominantly mixed C9 aromatic hydrocarbons, oral LD50 values have been reported as greater than 6880 mg/kg (males) and greater than 3440 mg/kg (females). LC50 values of 18,000 mg/m3 was reported for 1,2,4-TMB. For C9 aromatic solvents, the LC50 was greater than 10,200 mg/m3 (Shell Research Laboratory, 1976, unpublished study). One dermal acute study showed an LD50 value of greater than 3440 mg/kg for a C9 aromatic solvent (Shellsol A, a highly aromatic solvent boiling in the white spirit range, consisting of primarily C9 isomers particularly TMBs)

Environmental Fate

Biological. In anoxic groundwater near Bemidji, MI, 1,2,4-trimethylbenzene anaerobically biodegraded to the intermediate 3,4-dimethylbenzoic acid and the tentatively identified compounds 2,4- and/or 2,5-dimethylbenzoic acid (Cozzarelli et al., 1990).
Photolytic. Glyoxal, methylglyoxal, and biacetyl were produced from the photooxidation of 1,2,4-trimethylbenzene by OH radicals in air at 25 °C (Tuazon et al., 1986a). A rate constant of 2.0 x 10-8 L/molecule?sec was reported for the reaction of 1,2,4-trimethylbenzene with OH radicals in the gas phase (Darnall et al., 1976). Similarly, the rate constants for the reaction of 1,2,4- trimethylbenzene and OH radicals at room temperature were 3.35 x 10-11 (Hansen et al., 1975) and 3.84 x 10-11 cm3/molecule?sec (Atkinson, 1985). At 25 °C, a rate constant of 3.15 x 10-11 cm3/molecule?sec was reported for the same reaction (Ohta and Ohyama, 1985). Products identified from the OH radical-initiated reaction of 1,2,4-trimethylbenzene in the presence of nitrogen dioxide were 3-hexene-2,5-dione and 2,3-butanedione (Bethel et al., 2000).
Chemical/Physical. 1,2,4-Trimethylbenzene will not hydrolyze in water (Kollig, 1993).

Purification Methods

Reflux pseudocumene over sodium and distil it under reduced pressure. [Beilstein 6 H 1088, 6 I 542, 6 II 1072, 6 III 6278, 6 IV 7339.]

More
Less

1,2,4-Trimethylbenzene Suppliers

Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
-W&Y Express Chemical Industry Co., Ltd (ShenYang)
Tel
024-31124838 15840046119
Fax
024-25766157
Email
hxwdonald@wzeti.com
Country
China
ProdList
496
Advantage
58
Wuhan Jushun Chemical Co., Ltd
Tel
027-83238443 13349917800
Email
3629602341@qq.com
Country
China
ProdList
4994
Advantage
58
Jiangsu Runfeng Synthetic Technology Co., Ltd.
Tel
18551497631 18551497631
Email
507167383@qq.com
Country
China
ProdList
4968
Advantage
58
Wuhan Hongde Yuexin Pharmaceutical Technology Co., Ltd
Tel
02783850058 15377551550
Fax
027-83850058
Email
whhdyxchem027@sina.com
Country
China
ProdList
3074
Advantage
58
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing dtftchem Technology Co., Ltd.
Tel
010-60275820 13031183356
Fax
010-60270825
Email
elainezt@sina.com
Country
China
ProdList
1390
Advantage
62
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
9976
Advantage
60
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Syntechem Co.,Ltd
Tel
Fax
E-Mail Inquiry
Email
info@syntechem.com
Country
China
ProdList
12984
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9815
Advantage
79
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11707
Advantage
57
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9658
Advantage
60
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
T&W GROUP
Tel
021-61551611 13296011611
Fax
+86 21-50676805
Email
contact@trustwe.com
Country
China
ProdList
9895
Advantage
58
Shanghai civi chemical technology co.,Ltd
Tel
86-21-34053660
Fax
86-21-34053661
Email
sale@labgogo.com
Country
China
ProdList
9865
Advantage
52
Thermo Fisher Scientific
Tel
800-810-5118
Fax
+86-10-84193589
Email
cnchemical@thermofisher.com
Country
China
ProdList
17770
Advantage
75
Beijing innoChem Science & Technology Co.,Ltd.
Tel
400-810-7969 010-59572699
Fax
010-59572688
Email
ningzi.li@inno-chem.com.cn
Country
China
ProdList
6134
Advantage
55
Shanghai T&W Pharmaceutical Co., Ltd.
Tel
+86 21 61551611
Fax
+86 21 50676805
Country
China
ProdList
9891
Advantage
58
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22514
Advantage
55
Shanghai BeiZhuo Biotech Co., Ltd.
Tel
021-61119791,13386096464
Fax
021-50190009
Email
bzswkf@foxmail.com
Country
China
ProdList
3921
Advantage
50
Beijing Universal Century Technology Co., Ltd.
Tel
400-8706899
Fax
400-8706899
Email
hysj_bj.com
Country
China
ProdList
3583
Advantage
55
Shanghai Meishui Chemical Technology Co., Ltd
Tel
021-60549325 18616193163
Fax
021-33250306
Country
China
ProdList
4526
Advantage
56
Huainan Kedi Chemical Factory
Tel
0554-2106669
Fax
0554-2666215
Email
sales1@kedichem.com
Country
China
ProdList
4924
Advantage
55
RiZhao LiDeShi Chemical Co., Ltd.
Tel
010-51268198
Fax
010-63833209
Email
leadershipchem@126.com
Country
China
ProdList
2546
Advantage
58
Mei Lan Industrial (Shanghai) Co., Ltd.
Tel
021-58958189
Fax
021-58957967
Email
wouchina@126.com
Country
China
ProdList
2666
Advantage
55
Shanghai GaoLang Chemical Technology Co., Ltd.
Tel
021-57340939 18017297327
Fax
021-37210791
Email
sales@gaolangchemical.com
Country
China
ProdList
892
Advantage
55
Shanghai ideal Industrial Co., Ltd.
Tel
021-58957966 18930537195
Fax
021-60899437
Email
wouchina@126.com
Country
China
ProdList
3027
Advantage
58
Chengdu HuaXia Chemical Reagent Co. Ltd
Tel
400-1166-196 13458535857
Fax
QQ:800101999
Email
cdhxsj@163.com
Country
China
ProdList
13350
Advantage
58
GuangTuo Chemical (Shanghai) Co., Ltd.
Tel
021-60899189-8001 18918189673
Fax
021-60899304
Email
gtchem@126.com
Country
China
ProdList
2656
Advantage
58
Shanghai Macklin Biochemical Co.,Ltd.
Tel
15221275939 15221275939
Fax
021-50706099
Email
shenlinxing@macklin.cn
Country
China
ProdList
16166
Advantage
55
Shanghai Song Yuan Chemical Technology Co., Ltd.
Tel
010-1234567 18521000990
Fax
86-021-33275113
Email
sonyuanchemical@163.com
Country
China
ProdList
6479
Advantage
50
Chengdu RunZeBenTu Chemical Co., Ltd
Tel
13096311329 028-88469284 616445927
Fax
028-88469284
Email
616445927@qq.com
Country
China
ProdList
2874
Advantage
50
Chizhou Kailong Import and Export Trade Co., Ltd.
Tel
Fax
-
Email
xg01_gj@163.com
Country
China
ProdList
9484
Advantage
50
Sigma-Aldrich
Tel
021-61415566 800-8193336
Email
orderCN@merckgroup.com
Country
China
ProdList
51456
Advantage
80
Chengdu RunZeBenTu Chemical Co., Ltd
Tel
028-88469284 18000562381
Email
rzbtsj@163.com
Country
China
ProdList
9951
Advantage
56
Codow Chemical Co.,Ltd.
Tel
18620099427
Fax
+86-20-62619665
Email
amy@howeipharm.com
Country
China
ProdList
17687
Advantage
55
Nanjing Vital Chemical Co., Ltd.
Tel
025-87193546 18652950785
Fax
025-87193546
Email
chemweiao@163.com
Country
China
ProdList
9021
Advantage
60
Hangzhou Dingyan Chem Co., LTD
Tel
0571-87157530-8002 15267169049
Fax
0571-87156470
Email
sales@dingyanchem.com
Country
China
ProdList
2190
Advantage
58
Shandong Xiya Chemical Co., Ltd.
Tel
4009903999 13395398332
Fax
0539-6365991
Email
sales@xiyashiji.com
Country
China
ProdList
20806
Advantage
60
Chengdu Dianchun Technology Co., Ltd
Tel
400-1166-196 18502815961
Fax
QQ:800101999
Email
cdhxsj@163.com
Country
China
ProdList
14603
Advantage
60
Guangdong wengjiang Chemical Reagent Co., Ltd.
Tel
0751-2886750 13927877953
Fax
0751-2886750
Email
3005811397@qq.com
Country
China
ProdList
13320
Advantage
58
Shanghai CR Corporation Limited
Tel
021-80270511; 4006653949
Fax
QQ: 2136646215
Email
fred.wen@crcorporation.cn
Country
China
ProdList
10044
Advantage
58
Shanghai Orgchem Co.,Ltd.
Tel
+86-21-5877 1921
Fax
+86-21-5877 1925
Email
info@chemofchina.com
Country
China
ProdList
9653
Advantage
55
Jiaxing Deyi Chemical Co., Ltd.
Tel
0573-86-0573-85866609 13325730825
Fax
0573-85866609
Email
945717149@qq.com
Country
China
ProdList
8025
Advantage
58
More
Less

View Lastest Price from 1,2,4-Trimethylbenzene manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
1,2,4-Trimethylbenzene 95-63-6
Price
US $30.00-10.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2023-10-20
Hebei Chuanghai Biotechnology Co,.LTD
Product
1,2,4-Trimethylbenzene 95-63-6
Price
US $10.00/KG
Min. Order
1KG
Purity
99.%
Supply Ability
10 ton
Release date
2024-08-05
Henan Fengda Chemical Co., Ltd
Product
1,2,4-Trimethylbenzene 95-63-6
Price
US $100.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-26

95-63-6, 1,2,4-TrimethylbenzeneRelated Search:


  • TRIMETHYLBENZENE
  • 1,2,4-trimethyl-benzen
  • 1,2,4-trimethylbenzene (pseudocumene)
  • 1,3,4-TRIMETHYLBENZENE
  • 1,2,4-TRIMETHYLBENZENE
  • PSI-CUMENE
  • PSEUDOCUMENE
  • PSEUDOCUMOL
  • PSC
  • 1,2,4-trimethylbenzene(1,2,4-tmb)
  • 1,2,4-trimethylbenzene--benzene,1,2,4-trimethyl-
  • 1,2,5-trimethyl-benzen
  • 1,2,5-Trimethylbenzene
  • As-Trimethylbenzene
  • Asymmetrical trimethylbenzene
  • asymmetricaltrimethylbenzene
  • Benzene, 1,2,5-trimethyl-
  • Benzene,1,2,4-trimethyl-
  • Pseudocumene-1,2,4-trimethylbenzene
  • 1,2,4-Trimethylbenzene (1mg/ml in Methanol) [for Water Analysis]
  • ps-Cumene
  • 1,2,4-Trimethylbenzene,98%
  • 1,2,4-Trimethylbenzoyl
  • 1.2.4-Trimethylbenzene 1g [95-63-6]
  • 1,2,4-Trimethylbenze
  • asyM- TriMethylbenzene
  • pseudo
  • 1,2,4-TriMethylbenzene&nbsp
  • 1,2,4-TriMethylbenzene, 98% 1LT
  • 1,2,4-TriMethylbenzene, 98% 2.5LT
  • 1,2,4- threetoluene
  • 1.2.4-Trimethy
  • 1,2,4-TRIMETHYLBENZENE FOR SYNTHESIS
  • Heavy aromatic (tri-methylbenzene Isomer)
  • trimethyl-1,2,4benzene
  • uns-trimethylbenzene
  • unsym-Trimethylbenzene
  • unsym-triethylbenzene
  • Pseudocumene (PSC)
  • 1,2,4-TRIMETHYLBENZENE, 1 GRAM, NEAT
  • 1,2,4-TRIMETHYLBENZENE, 1X1ML, MEOH, 500 0UG/ML
  • 1,2,4-Trimethylbenzol, 250 MG
  • 1,2,4-TRIMETHYLBENZENE 99.9+% GC STANDARD
  • 1,2,4-Trimethylbenzere
  • 1,2,4-Trimethylbenzene,Certified
  • 1,2,4-Trimethylbenzene (95-98%)
  • 1,2,4-Trimethylbenzol
  • methyl-p-xylene,1,2,4-trimethylbenzene,pseudocumene
  • 1,2,4-trimethylbenzene solution
  • PSEUDOCUMENE(SG)
  • 1,2,4-Trimethylbenzene Standard
  • 1,2,4-TRIMETHYLBENZENE A.K.A. PSUDOCUMENE
  • 1,2,4-TrimethylbenzeneSolution,1000mg/L,1ml
  • 1,2,4-Trimethylbenzene &gt
  • 1,2,4-TrimethyL
  • 1,2,4-Trimethylbenzene Solution, 100μg/mL
  • 1,2,4-Trimethylbenzene ISO 9001:2015 REACH
  • TIANFUCHEM--High purity 1,2,4-Trimethylbenzene factory price