1,2,4-TRIMETHYLBENZENE

95-63-6

Pseudocumene

Pseudocumol

Psi-cumene

as-Trimethylbenzene

1,3,4-Trimethylbenzene

Benzene, 1,2,4-trimethyl-

Uns-trimethylbenzene

1,2,5-Trimethylbenzene

Asymmetrical trimethylbenzene

.psi.-Cumene

pseudo-cumene

1,2,4-trimethyl-benzene

1,2,4-Trimethyl benzene

Benzene, 1,2,5-trimethyl-

NSC 65600

DTXSID6021402

CHEBI:34039

NSC-65600

34X0W8052F

DTXCID701402

CAS-95-63-6

1,2,4-Trimethylbenzene, analytical standard

HSDB 5293

EINECS 202-436-9

pseudo cumene

AI3-03976

CCRIS 8146

UNII-34X0W8052F

1,4-Trimethylbenzene

PSUEDO-CUMENE

laquo Psiraquo -Cumene

METHYL-P-XYLENE

Benzene,2,4-trimethyl-

PSEUDOCUMENE [MI]

1,2,5-trimethyl-benzene

1,2, 4-Trimethylbenzene

EC 202-436-9

BIDD:ER0682

TRIMETHYLBENZENE [INCI]

1.2.4-TRIMETHYLBENZENE

CHEMBL1797280

WLN: 1R B1 D1

1,2,4-Trimethylbenzene, 98%

21 - VOCs (Perkin Elmer tubes)

NSC65600

TRIMETHYLBENZENE, 1,2,4-

Tox21_200518

Tox21_300049

MFCD00008527

STL268868

06C - Benzene, Toluene and Xylenes

AKOS000120059

1,2,4-Trimethylbenzene (pseudocumene)

MCULE-5935311187

1,2,4-TRIMETHYLBENZENE [HSDB]

NCGC00247891-01

NCGC00247891-02

NCGC00254118-01

NCGC00258072-01

PS-11947

1,2,4-Trimethylbenzene (ACD/Name 4.0)

NS00006467

S0662

T0469

EN300-20076

A937622

Q376994

1,2,4-Trimethylbenzene 100 microg/mL in Methanol

F0001-2275

Z104476700

1,2,4-Trimethylbenzene, certified reference material, TraceCERT(R)

InChI=1/C9H12/c1-7-4-5-8(2)9(3)6-7/h4-6H,1-3H

XBZ

The Henry's Law constant for 1,2,4-trimethylbenzene was measured as 6.16X10-3 atm-cu m/mol(1). This value indicates that 1,2,4-trimethylbenzene will volatilize from moist soil and water surfaces(2). Based on this Henry's Law constant, the estimated volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is approximately 3 hours(SRC). The estimated volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is approximately 4 days(SRC). Volatilization of 1,2,4-trimethylbenzene from dry soil surfaces is expected(SRC) based upon its vapor pressure of 2.1 mm Hg(3).
Literature: (1) Sanemasa I et al; Bull Chem Soc Jpn 55: 1054-62 (1982) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Chao J et al; J Phys Chem Ref Data 12: 1033-63 (1983)
Literature: #Complete removal of 1,2,4-trimethylbenzene (at 0.068 ug/mL soil extract) from sandy loam soil samples contaminated with jet fuel was reported within 5 days; sterile samples with 1,2,4-trimethylbenzene at 0.057 ug/mL soil extract also showed complete removal of this compound within 5 days, probably through evaporation(1). Jet fuel added to water (and then stirred) had an average volatilization ratio (volatilization rate constant of the compound/oxygen reaeration rate constant) of 0.59 for JP-4 fuel and a ratio of 0.45 for JP-8 fuel for the 1,2,4-trimethylbenzene component, indicating high volatility of this compound from water(2).
Literature: (1) Dean-Ross D; Bull Environ Contam Toxicol 51: 596-99 (1993) (2) Smith JH, Harper JC; pp. 336-53 in Proceed 12th Conf on Environ Toxicol 3, 4, and 5. Nov. 1981. Airforce Aerospace Medical Research Lab. Ohio (1982)

A Koc value of 537 was measured for 1,2,4-trimethylbenzene in a German soil (80.5% sand 12.3% silt, 7.2% clay, 2.48% organic carbon). According to a suggested classification scheme(2), this Koc value suggests that 1,2,4-trimethylbenzene will have low mobility in soil(SRC).
Literature: (1) Brusseau ML; Environ Toxicol Chem 12: 1835-46 (1993) (2) Swann RL et al; Res Rev 85: 23 (1983)