ortho-dimethylbenzene

orthoxylene

CTQNGGLPUBDAKN-UHFFFAOYSA-N

o-Dimethylbenzene

dimethyl-benzene

o-Methyltoluene

Ortho-Xylene

OXE

Xylenes ACS

2-Methyltoluene

o-Xylenes

AC1L1OBD

O-XYLENE

o-Xylene, Spectrophotometric Grade

o-Xylol

Xylene mixture of isomers

2-Xylene

m,p-Xylene

o-Xylene, analytical standard

1,2-Dimethylbenzene

1,2-Dimethylbenzol

Benzene, dimethyl-, chloromethylated

188l

KSC174O2H

Xylene, o-isomer

CHEMBL45005

Benzene, o-dimethyl-

CCRIS 905

CTK0H4723

HSDB 134

o-Xylene, HPLC Grade

S0650

1,2-Xylene

3,4-Xylene

ACMC-209rz0

BENZENE,1,2-DIMETHYL

NSC60920

o-Xylene, secondary standard traceable to NIST

Xylene, o-

bmse000526

C07212

Z2474E14QP

ZINC968282

DTXSID3021807

LS-1976

OR000301

OR245567

OR248479

OR380402

OR380403

SBB040816

STL264206

ZB015548

CHEBI:28063

DSSTox_CID_1807

o-XYLENE- D10

UNII-Z2474E14QP

AN-24318

AN-49093

ANW-40522

DSSTox_GSID_21807

METHYL,(2-METHYLPHENYL)-

NSC 60920

NSC-60920

o-Xylene, spectrophotometric grade, 98%

BDBM50008560

DSSTox_RID_76340

MFCD00008519

O-XYLENE-ALPHA,ALPHA,ALPHA,ALPHA',ALPHA',ALPHA'-D6

WLN: 1R B1

ZINC00968282

AI3-08197

RTR-033017

ST50214390

TR-004510

TR-033017

AKOS000269058

I01-4412

I01-8965

o-Xylene, anhydrous, 97%

Benzene, 1,2-dimethyl-

FT-0645147

FT-0688168

95-47-6

o-Xylene, for synthesis, 98%

Tox21_200658

F1908-0112

CAS-95-47-6

o-Xylene, for HPLC, 98%

MCULE-2208963094

NCGC00091662-01

NCGC00091662-02

NCGC00091662-03

NCGC00258212-01

EINECS 202-422-2

o-Xylene, reagent grade, >=98.0%

68411-84-7

849-EP2269975A2

849-EP2269977A2

849-EP2269986A1

849-EP2269988A2

849-EP2269989A1

849-EP2269990A1

849-EP2269993A1

849-EP2269997A2

849-EP2270113A1

849-EP2270114A1

849-EP2272516A2

849-EP2272537A2

849-EP2272813A2

849-EP2272822A1

849-EP2272830A1

849-EP2272832A1

849-EP2272841A1

849-EP2272849A1

849-EP2272935A1

849-EP2274983A1

849-EP2275105A1

849-EP2275395A2

849-EP2275403A1

849-EP2275404A1

849-EP2275407A1

849-EP2275409A1

849-EP2275410A1

849-EP2275411A2

849-EP2275414A1

849-EP2275415A2

849-EP2275427A1

849-EP2275469A1

849-EP2277848A1

849-EP2277858A1

849-EP2277865A1

849-EP2277871A1

849-EP2277878A1

849-EP2279750A1

849-EP2280000A1

849-EP2280001A1

849-EP2280005A1

849-EP2280009A1

849-EP2280011A1

849-EP2281810A1

849-EP2281812A1

849-EP2281816A1

849-EP2281818A1

849-EP2281821A1

849-EP2284159A1

849-EP2284160A1

849-EP2284165A1

849-EP2284174A1

849-EP2284920A1

849-EP2286811A1

849-EP2287141A1

849-EP2287152A2

849-EP2287159A1

849-EP2287167A1

849-EP2287940A1

849-EP2289509A2

849-EP2289868A1

849-EP2289876A1

849-EP2289884A1

849-EP2289887A2

849-EP2289888A2

849-EP2289896A1

849-EP2289965A1

849-EP2292227A2

849-EP2292586A2

849-EP2292592A1

849-EP2292593A2

849-EP2292597A1

849-EP2292599A1

849-EP2292606A1

849-EP2292609A1

849-EP2292612A2

849-EP2292624A1

849-EP2295406A1

849-EP2295409A1

849-EP2295412A1

849-EP2295413A1

849-EP2295414A1

849-EP2295421A1

849-EP2295425A1

849-EP2295426A1

849-EP2295427A1

849-EP2295433A2

849-EP2295437A1

849-EP2295438A1

849-EP2298731A1

849-EP2298744A2

849-EP2298747A1

849-EP2298750A1

849-EP2298756A1

849-EP2298763A1

849-EP2298766A1

849-EP2298767A1

849-EP2298768A1

849-EP2298770A1

849-EP2298775A1

849-EP2298777A2

849-EP2298828A1

849-EP2301922A1

849-EP2301924A1

849-EP2301925A1

849-EP2301928A1

849-EP2301934A1

849-EP2301936A1

849-EP2301983A1

849-EP2305625A1

849-EP2305640A2

849-EP2305641A1

849-EP2305642A2

849-EP2305649A1

849-EP2305651A1

849-EP2305655A2

849-EP2305658A1

849-EP2305667A2

849-EP2305668A1

849-EP2305672A1

849-EP2305676A1

849-EP2305677A1

849-EP2305685A1

849-EP2305686A1

849-EP2308471A1

849-EP2308562A2

849-EP2308838A1

849-EP2308840A1

849-EP2308844A2

849-EP2308845A2

849-EP2308846A2

849-EP2308849A1

849-EP2308850A1

849-EP2308853A1

849-EP2308854A1

849-EP2308857A1

849-EP2308858A1

849-EP2308869A1

849-EP2308877A1

849-EP2308926A1

849-EP2309564A1

849-EP2311801A1

849-EP2311802A1

849-EP2311803A1

849-EP2311804A2

849-EP2311808A1

849-EP2311810A1

849-EP2311813A1

849-EP2311815A1

849-EP2311816A1

849-EP2311817A1

849-EP2311826A2

849-EP2311829A1

849-EP2311830A1

849-EP2314558A1

849-EP2314579A1

849-EP2314583A1

849-EP2314584A1

849-EP2314586A1

849-EP2314587A1

849-EP2315502A1

849-EP2316832A1

849-EP2316833A1

849-EP2316836A1

849-EP2371795A1

849-EP2371797A1

849-EP2371798A1

849-EP2371800A1

849-EP2371804A1

849-EP2371805A1

849-EP2371810A1

849-EP2371814A1

849-EP2371831A1

849-EP2374783A1

849-EP2374895A1

849-EP2377841A1

849-EP2377845A1

849-EP2377847A1

849-EP2380568A1

849-EP2380873A1

o-Xylene, 99% 100ml

o-Xylene, SAJ special grade, >=98.5%

MolPort-016-899-217

o-Xylene [UN1307] [Flammable liquid]

15074-EP2272813A2

15074-EP2275395A2

15074-EP2316832A1

15074-EP2316833A1

15074-EP2380867A1

15075-EP2272813A2

15075-EP2275395A2

15075-EP2316832A1

15075-EP2316833A1

28308-EP2272813A2

28308-EP2275395A2

28308-EP2280005A1

28308-EP2289884A1

28308-EP2298738A1

28308-EP2305625A1

28308-EP2309584A1

28308-EP2314577A1

28308-EP2371831A1

28308-EP2380568A1

77824-EP2272846A1

77824-EP2275422A1

77824-EP2277868A1

77824-EP2277869A1

77824-EP2277870A1

77824-EP2292608A1

77824-EP2295436A1

77824-EP2298076A1

77824-EP2298077A1

77824-EP2298749A1

77824-EP2298762A2

77824-EP2298769A1

77824-EP2301353A1

77824-EP2305031A1

77824-EP2305034A1

77824-EP2305035A1

77824-EP2308866A1

77824-EP2371823A1

77824-EP2374791A1

o-Xylene [UN1307] [Flammable liquid]

o-Xylene, puriss. p.a., >=99.0% (GC)

InChI=1/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H

The Henry's Law constant for 2-xylene has been measured as 5.18X10-3 atm-cu m/mole(1). This Henry's Law constant indicates that 2-xylene is expected to volatilize rapidly from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 3.2 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 4.1 days(SRC). 2-Xylene's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). 2-Xylene is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 6.65 mm Hg at 25 deg C(3).
Literature: (1) Sanemasa I et al; Bull Chem Soc Jpn 18: 1111-230 (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) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation. Design Institute for Physical Property Data, American Institute of Chemical Engineers. New York, NY: Hemisphere Pub Corp (1996)

Koc values measured for 2-xylene in various soils (% organic matter) were 24 in Wendover silty clay (16.2%), 26 in Vaudreil sand loam (10.0%), 68 in St. Thomas sand (3.1%), and 138 in Grimsby silt loam (1.0%)(1). Batch adsorption tests, using three solid sandy aquifer materials gave a Koc of 129(2). The Koc for 2-xylene in surface sediments collected from the central Tamar estuary in the UK was 25.4(3). The Koc values for 2-xylene in two river sediments (% organic matter 6.5-16.9 wt%) was 209 and 251, respectively(4). According to a classification scheme(5), these measured Koc values suggests that 2-xylene is expected to have very high to moderate mobility in soil. Using OECD Guideline 121 (estimating Koc via HPLC), the Koc of 2-xylene was estimated to be 537(6). Concentration enhancement has been observed for 2-xylene in a dune-infiltration project on the Rhine River(7); however, no 2-xylene reached groundwater under a rapid infiltration site(8). The log Koc for 2-xylene in coal sediment (% organic matter 52 wt%) was 2.40(4).
Literature: (1) Nathwani JS, Phillip CR; Chemosphere 6: 157-62 (1977) (2) Abdul AS, Gibson TL, Rai DN; S Haz Waste Haz Mat 4: 211-22 (1987) (3) Vowles PD, Mantoura RFC; Chemosphere 16: 109-16 (1987) (4) Kopinke FD et al; Environ Sci Technol 29: 941-50 (1995) (5) Swann RL et al; Res Rev 85: 17-28 (1983) (6) ECHA; Search for Chemicals. o-Xylene (CAS 95-47-6) Registered Substances Dossier. European Chemical Agency. Available from, as of June 20, 2015: http://echa.europa.eu/ (7) Piet GJ et al; Quality of groundwater. Van Dwjvenbooden W et al, eds; Studies in Environ Sci 17: 557-64 (1981) (8) Tomson MB et al; Water Res 15: 1109-16 (1981)