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Xylenes

Xylenes are any one of three isomers of dimethylbenzene, or a combination thereof. All are colorless, flammable liquids composed of a central benzene ring with two methyl groups attached at substituents. They can be applied as precursor chemicals and solvents.

Xylenes are flammable petrochemical products that can be produced via catalytic reforming and coal carbonization during coke production and found in crude oil, gasoline, and aircraft fuel. Xylenes were first isolated from wood tar and named by the French chemist Auguste Cahours.

What Is Xylene?

Xylene, more appropriately called xylenes, refers to any single or combination of the three isomers of dimethylbenzene. The isomeric forms are designated as ortho- (o-), meta- (m-), and para- (p-), a reference to the carbon in the benzene ring to which the two methyl groups are attached.

  • o-isomer: 1,2-dimethylbenzene
  • m-isomer: 1,3-dimethylbenzene
  • p-isomer: 1,4-dimethylbenzene

Xylenes are colorless and can be detected by odor at concentrations as low as 0.08 to 3.7 ppm in air and tasted in water at 0.53 to 1.8 ppm.

Refer to the Certificate of Analysis or the Safety Data Sheet for specific information about xylene density and safety hazards.

What Is Xylene Used For?

Industrial Uses

p-Xylene is a precursor to terephthalic acid and dimethyl terephthalate, used to make polyethylene terephthalate plastic bottles and polyester clothing.

Xylene can be used as a solvent and is a common component of ink, rubber, adhesives, and paint and varnish thinners. Xylenes may be used to clean steel, silicon wafers, and integrated circuits. Medical applications include use as a solvent of dental materials and ear wax.

Laboratory Uses

Xylene can be used with dry ice in baths, to remove oil from microscope objectives, and as a cleaning agent or mounting material in histology procedures.

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1

Xylene, for Electronic Use (MOS), Fisher Chemical™

CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: 77264

CAS 1330-20-7
MDL Number 77264
Molecular Formula C8H10
2

2-(tert-Butyl)-4,6-dimethylphenol, 97%

CAS: 1879-09-0 Molecular Formula: C12H18O Molecular Weight (g/mol): 178.28 MDL Number: MFCD00002234 InChI Key: OPLCSTZDXXUYDU-UHFFFAOYSA-N Synonym: 2,4-dimethyl-6-tert-butylphenol,2-tert-butyl-4,6-dimethylphenol,6-tert-butyl-2,4-dimethylphenol,topanol a,6-tert-butyl-2,4-xylenol,6-t-butyl-2,4-xylenol,prodox 340,phenol, 2-1,1-dimethylethyl-4,6-dimethyl,6-t-butyl-2,4-dimethylphenol,2,4-xylenol, 6-tert-butyl PubChem CID: 15884 IUPAC Name: 2-tert-butyl-4,6-dimethylphenol SMILES: CC1=CC(C)=C(O)C(=C1)C(C)(C)C

PubChem CID 15884
CAS 1879-09-0
Molecular Weight (g/mol) 178.28
MDL Number MFCD00002234
SMILES CC1=CC(C)=C(O)C(=C1)C(C)(C)C
Synonym 2,4-dimethyl-6-tert-butylphenol,2-tert-butyl-4,6-dimethylphenol,6-tert-butyl-2,4-dimethylphenol,topanol a,6-tert-butyl-2,4-xylenol,6-t-butyl-2,4-xylenol,prodox 340,phenol, 2-1,1-dimethylethyl-4,6-dimethyl,6-t-butyl-2,4-dimethylphenol,2,4-xylenol, 6-tert-butyl
IUPAC Name 2-tert-butyl-4,6-dimethylphenol
InChI Key OPLCSTZDXXUYDU-UHFFFAOYSA-N
Molecular Formula C12H18O
3

2-Bromo-p-xylene, 98+%

CAS: 553-94-6 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000074 InChI Key: QXISTPDUYKNPLU-UHFFFAOYSA-N Synonym: 2,5-dimethylbromobenzene,2-bromo-p-xylene,1-bromo-2,5-dimethylbenzene,benzene, 2-bromo-1,4-dimethyl,bromo-p-xylene,2-bromo-1,4-dimethyl-benzene,2,5-xylyl bromide,2-bromo-1,4-xylene,2,5-dimethylphenyl bromide,p-xylene, 2-bromo PubChem CID: 11121 IUPAC Name: 2-bromo-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(Br)=C1

PubChem CID 11121
CAS 553-94-6
Molecular Weight (g/mol) 185.06
MDL Number MFCD00000074
SMILES CC1=CC=C(C)C(Br)=C1
Synonym 2,5-dimethylbromobenzene,2-bromo-p-xylene,1-bromo-2,5-dimethylbenzene,benzene, 2-bromo-1,4-dimethyl,bromo-p-xylene,2-bromo-1,4-dimethyl-benzene,2,5-xylyl bromide,2-bromo-1,4-xylene,2,5-dimethylphenyl bromide,p-xylene, 2-bromo
IUPAC Name 2-bromo-1,4-dimethylbenzene
InChI Key QXISTPDUYKNPLU-UHFFFAOYSA-N
Molecular Formula C8H9Br
4

2-Bromo-m-xylene, 98+%

CAS: 576-22-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000075 InChI Key: MYMYVYZLMUEVED-UHFFFAOYSA-N Synonym: 2,6-dimethylbromobenzene,2-bromo-m-xylene,1-bromo-2,6-dimethylbenzene,benzene, 2-bromo-1,3-dimethyl,2,6-dimethyl bromobenzene,m-xylene, 2-bromo,2,6-dimethylphenyl bromide,2-bromo-meta-xylene,2-bromo-1,3-dimethyl-benzene,pubchem3206 PubChem CID: 68471 IUPAC Name: 2-bromo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)Br

PubChem CID 68471
CAS 576-22-7
Molecular Weight (g/mol) 185.064
MDL Number MFCD00000075
SMILES CC1=C(C(=CC=C1)C)Br
Synonym 2,6-dimethylbromobenzene,2-bromo-m-xylene,1-bromo-2,6-dimethylbenzene,benzene, 2-bromo-1,3-dimethyl,2,6-dimethyl bromobenzene,m-xylene, 2-bromo,2,6-dimethylphenyl bromide,2-bromo-meta-xylene,2-bromo-1,3-dimethyl-benzene,pubchem3206
IUPAC Name 2-bromo-1,3-dimethylbenzene
InChI Key MYMYVYZLMUEVED-UHFFFAOYSA-N
Molecular Formula C8H9Br
5

4,5-Dimethyl-2-nitroaniline, 97%

CAS: 6972-71-0 Molecular Formula: C8H10N2O2 Molecular Weight (g/mol): 166.18 MDL Number: MFCD00007811 InChI Key: PINGKGKKUSYUAW-UHFFFAOYSA-N Synonym: 6-nitro-3,4-xylidine,benzenamine, 4,5-dimethyl-2-nitro,3,4-xylidine, 6-nitro,2-nitro-4,5-dimethylaniline,4,5-dimethyl-2-nitrophenylamine,2-nitro-4,5-xylidine,3,4-dimethyl-6-nitroaniline,acmc-20amrx,3, 6-nitro,4-amino-5-nitro-o-xylene PubChem CID: 81445 IUPAC Name: 4,5-dimethyl-2-nitroaniline SMILES: CC1=CC(=C(C=C1C)[N+](=O)[O-])N

PubChem CID 81445
CAS 6972-71-0
Molecular Weight (g/mol) 166.18
MDL Number MFCD00007811
SMILES CC1=CC(=C(C=C1C)[N+](=O)[O-])N
Synonym 6-nitro-3,4-xylidine,benzenamine, 4,5-dimethyl-2-nitro,3,4-xylidine, 6-nitro,2-nitro-4,5-dimethylaniline,4,5-dimethyl-2-nitrophenylamine,2-nitro-4,5-xylidine,3,4-dimethyl-6-nitroaniline,acmc-20amrx,3, 6-nitro,4-amino-5-nitro-o-xylene
IUPAC Name 4,5-dimethyl-2-nitroaniline
InChI Key PINGKGKKUSYUAW-UHFFFAOYSA-N
Molecular Formula C8H10N2O2
6

2-Iodo-p-xylene, 98+%

CAS: 1122-42-5 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00013708 InChI Key: WYZVNUSNUCABRF-UHFFFAOYSA-N Synonym: 2-iodo-p-xylene,1,4-dimethyl-2-iodobenzene,p-xylene, 2-iodo,1-iodo-2,5-dimethylbenzene,benzene, 2-iodo-1,4-dimethyl,2-iodo-4-xylene,2,5-dimethyliodobenzene,2-iodo-1,4-dimethyl-benzene,2,5-dimethyl-1-iodobenzene,pubchem3875 PubChem CID: 70731 IUPAC Name: 2-iodo-1,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)C)I

PubChem CID 70731
CAS 1122-42-5
Molecular Weight (g/mol) 232.064
MDL Number MFCD00013708
SMILES CC1=CC(=C(C=C1)C)I
Synonym 2-iodo-p-xylene,1,4-dimethyl-2-iodobenzene,p-xylene, 2-iodo,1-iodo-2,5-dimethylbenzene,benzene, 2-iodo-1,4-dimethyl,2-iodo-4-xylene,2,5-dimethyliodobenzene,2-iodo-1,4-dimethyl-benzene,2,5-dimethyl-1-iodobenzene,pubchem3875
IUPAC Name 2-iodo-1,4-dimethylbenzene
InChI Key WYZVNUSNUCABRF-UHFFFAOYSA-N
Molecular Formula C8H9I
7

2-Chloro-m-xylene, 98%

CAS: 6781-98-2 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00000565 InChI Key: VDXLAYAQGYCQEO-UHFFFAOYSA-N Synonym: 2-chloro-m-xylene,2,6-dimethylchlorobenzene,m-xylene, 2-chloro,benzene, 2-chloro-1,3-dimethyl,2,6-dimethyl chlorobenzene,2,6-dimethylphenyl chloride,1-chloro-2,6-dimethylbenzene,2,6-dimethylchlorobenzene;2-chloro-m-xylene,2-chloro-meta-xylene,pubchem3643 PubChem CID: 32885 IUPAC Name: 2-chloro-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)Cl

PubChem CID 32885
CAS 6781-98-2
Molecular Weight (g/mol) 140.61
MDL Number MFCD00000565
SMILES CC1=C(C(=CC=C1)C)Cl
Synonym 2-chloro-m-xylene,2,6-dimethylchlorobenzene,m-xylene, 2-chloro,benzene, 2-chloro-1,3-dimethyl,2,6-dimethyl chlorobenzene,2,6-dimethylphenyl chloride,1-chloro-2,6-dimethylbenzene,2,6-dimethylchlorobenzene;2-chloro-m-xylene,2-chloro-meta-xylene,pubchem3643
IUPAC Name 2-chloro-1,3-dimethylbenzene
InChI Key VDXLAYAQGYCQEO-UHFFFAOYSA-N
Molecular Formula C8H9Cl
8

2-Bromo-4,6-dimethylaniline, 98%

CAS: 41825-73-4 Molecular Formula: C8H10BrN Molecular Weight (g/mol): 200.08 MDL Number: MFCD00047826 InChI Key: YOSJCQJJIHEUKA-UHFFFAOYSA-N Synonym: 2-bromo-4,6-dimethyl-aniline,6-bromo-2,4-xylidine,benzenamine, 2-bromo-4,6-dimethyl,2-bromo-4,6-dimethylphenylamine,4-amino-5-bromo-m-xylene,2-bromo-4,6-dimethylbenzenamine,2-bromo-4,6-dimethyl-phenylamine,2-amino-3,5-dimethyl-1-bromobenzene,pubchem3761 PubChem CID: 170579 IUPAC Name: 2-bromo-4,6-dimethylaniline SMILES: CC1=CC(C)=C(N)C(Br)=C1

PubChem CID 170579
CAS 41825-73-4
Molecular Weight (g/mol) 200.08
MDL Number MFCD00047826
SMILES CC1=CC(C)=C(N)C(Br)=C1
Synonym 2-bromo-4,6-dimethyl-aniline,6-bromo-2,4-xylidine,benzenamine, 2-bromo-4,6-dimethyl,2-bromo-4,6-dimethylphenylamine,4-amino-5-bromo-m-xylene,2-bromo-4,6-dimethylbenzenamine,2-bromo-4,6-dimethyl-phenylamine,2-amino-3,5-dimethyl-1-bromobenzene,pubchem3761
IUPAC Name 2-bromo-4,6-dimethylaniline
InChI Key YOSJCQJJIHEUKA-UHFFFAOYSA-N
Molecular Formula C8H10BrN
9

2-Bromo-m-xylene, 98%

CAS: 576-22-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000075 InChI Key: MYMYVYZLMUEVED-UHFFFAOYSA-N Synonym: 2,6-dimethylbromobenzene,2-bromo-m-xylene,1-bromo-2,6-dimethylbenzene,benzene, 2-bromo-1,3-dimethyl,2,6-dimethyl bromobenzene,m-xylene, 2-bromo,2,6-dimethylphenyl bromide,2-bromo-meta-xylene,2-bromo-1,3-dimethyl-benzene,pubchem3206 PubChem CID: 68471 IUPAC Name: 2-bromo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)Br

PubChem CID 68471
CAS 576-22-7
Molecular Weight (g/mol) 185.06
MDL Number MFCD00000075
SMILES CC1=C(C(=CC=C1)C)Br
Synonym 2,6-dimethylbromobenzene,2-bromo-m-xylene,1-bromo-2,6-dimethylbenzene,benzene, 2-bromo-1,3-dimethyl,2,6-dimethyl bromobenzene,m-xylene, 2-bromo,2,6-dimethylphenyl bromide,2-bromo-meta-xylene,2-bromo-1,3-dimethyl-benzene,pubchem3206
IUPAC Name 2-bromo-1,3-dimethylbenzene
InChI Key MYMYVYZLMUEVED-UHFFFAOYSA-N
Molecular Formula C8H9Br
10

2-Iodo-m-xylene, 98%

CAS: 608-28-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00019012 InChI Key: QTUGGVBKWIYQSS-UHFFFAOYSA-N Synonym: 2-iodo-m-xylene,2,6-dimethyliodobenzene,m-xylene, 2-iodo,benzene, 2-iodo-1,3-dimethyl,1,3-dimethyl-2-iodobenzene,2-iodo-1,3-dimethyl-benzene,2,6-dimethyl-1-iodobenzene,2-iodo-o-xylene,pubchem3867,acmc-1axwc PubChem CID: 69097 IUPAC Name: 2-iodo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)I

PubChem CID 69097
CAS 608-28-6
Molecular Weight (g/mol) 232.064
MDL Number MFCD00019012
SMILES CC1=C(C(=CC=C1)C)I
Synonym 2-iodo-m-xylene,2,6-dimethyliodobenzene,m-xylene, 2-iodo,benzene, 2-iodo-1,3-dimethyl,1,3-dimethyl-2-iodobenzene,2-iodo-1,3-dimethyl-benzene,2,6-dimethyl-1-iodobenzene,2-iodo-o-xylene,pubchem3867,acmc-1axwc
IUPAC Name 2-iodo-1,3-dimethylbenzene
InChI Key QTUGGVBKWIYQSS-UHFFFAOYSA-N
Molecular Formula C8H9I
11

2-Fluoro-m-xylene, 98%

CAS: 443-88-9 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00039215 InChI Key: JTAUTNBVFDTYTI-UHFFFAOYSA-N Synonym: 2,6-dimethylfluorobenzene,2-fluoro-m-xylene,1-fluoro-2,6-dimethylbenzene,1,3-dimethyl-2-fluorobenzene,benzene, 2-fluoro-1,3-dimethyl,2,6-dimethyl fluorobenzene,2-fluoro-1,3-dimethyl-benzene,fr b1 f1,pubchem4407,2-fluoro-3-methyltoluene PubChem CID: 123065 IUPAC Name: 2-fluoro-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)F

PubChem CID 123065
CAS 443-88-9
Molecular Weight (g/mol) 124.158
MDL Number MFCD00039215
SMILES CC1=C(C(=CC=C1)C)F
Synonym 2,6-dimethylfluorobenzene,2-fluoro-m-xylene,1-fluoro-2,6-dimethylbenzene,1,3-dimethyl-2-fluorobenzene,benzene, 2-fluoro-1,3-dimethyl,2,6-dimethyl fluorobenzene,2-fluoro-1,3-dimethyl-benzene,fr b1 f1,pubchem4407,2-fluoro-3-methyltoluene
IUPAC Name 2-fluoro-1,3-dimethylbenzene
InChI Key JTAUTNBVFDTYTI-UHFFFAOYSA-N
Molecular Formula C8H9F
12

2-Bromo-p-xylene, 97%

CAS: 553-94-6 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000074 InChI Key: QXISTPDUYKNPLU-UHFFFAOYSA-N Synonym: 2,5-dimethylbromobenzene,2-bromo-p-xylene,1-bromo-2,5-dimethylbenzene,benzene, 2-bromo-1,4-dimethyl,bromo-p-xylene,2-bromo-1,4-dimethyl-benzene,2,5-xylyl bromide,2-bromo-1,4-xylene,2,5-dimethylphenyl bromide,p-xylene, 2-bromo PubChem CID: 11121 IUPAC Name: 2-bromo-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(Br)=C1

PubChem CID 11121
CAS 553-94-6
Molecular Weight (g/mol) 185.06
MDL Number MFCD00000074
SMILES CC1=CC=C(C)C(Br)=C1
Synonym 2,5-dimethylbromobenzene,2-bromo-p-xylene,1-bromo-2,5-dimethylbenzene,benzene, 2-bromo-1,4-dimethyl,bromo-p-xylene,2-bromo-1,4-dimethyl-benzene,2,5-xylyl bromide,2-bromo-1,4-xylene,2,5-dimethylphenyl bromide,p-xylene, 2-bromo
IUPAC Name 2-bromo-1,4-dimethylbenzene
InChI Key QXISTPDUYKNPLU-UHFFFAOYSA-N
Molecular Formula C8H9Br
13

2-Chloro-N-(2,3-dimethylphenyl)benzamide, 97%

CAS: 196617-88-6 Molecular Formula: C15H14ClNO Molecular Weight (g/mol): 259.733 MDL Number: MFCD00018254 InChI Key: OUAGJVUPQKYHDU-UHFFFAOYSA-N Synonym: 2-chloro-n-2,3-dimethylphenyl benzamide,cambridge id 5328590,2-chloro-2',3'-benzoxylidide,2-chloro-n-2,3-dimethyl-phenyl-benzamide,n-2,3-dimethylphenyl 2-chlorophenyl carboxamide PubChem CID: 295079 IUPAC Name: 2-chloro-N-(2,3-dimethylphenyl)benzamide SMILES: CC1=C(C(=CC=C1)NC(=O)C2=CC=CC=C2Cl)C

PubChem CID 295079
CAS 196617-88-6
Molecular Weight (g/mol) 259.733
MDL Number MFCD00018254
SMILES CC1=C(C(=CC=C1)NC(=O)C2=CC=CC=C2Cl)C
Synonym 2-chloro-n-2,3-dimethylphenyl benzamide,cambridge id 5328590,2-chloro-2',3'-benzoxylidide,2-chloro-n-2,3-dimethyl-phenyl-benzamide,n-2,3-dimethylphenyl 2-chlorophenyl carboxamide
IUPAC Name 2-chloro-N-(2,3-dimethylphenyl)benzamide
InChI Key OUAGJVUPQKYHDU-UHFFFAOYSA-N
Molecular Formula C15H14ClNO
14

5-Bromo-2-fluoro-m-xylene, 97%

CAS: 99725-44-7 Molecular Formula: C8H8BrF Molecular Weight (g/mol): 203.054 MDL Number: MFCD01320701 InChI Key: ZXPHUVHMBKRRJF-UHFFFAOYSA-N Synonym: 5-bromo-2-fluoro-m-xylene,5-bromo-2-fluoro-3-xylene,4-bromo-2,6-dimethylfluorobenzene,1-bromo-4-fluoro-3,5-dimethylbenzene,5-bromo-2-fluoro-1,3-xylene,benzene, 5-bromo-2-fluoro-1,3-dimethyl,3,5-dimethyl-4-fluorobromobenzene,5-bromo-2-fluoro-1,3-dimethyl-benzene,ksc486i9j PubChem CID: 2736298 IUPAC Name: 5-bromo-2-fluoro-1,3-dimethylbenzene SMILES: CC1=CC(=CC(=C1F)C)Br

PubChem CID 2736298
CAS 99725-44-7
Molecular Weight (g/mol) 203.054
MDL Number MFCD01320701
SMILES CC1=CC(=CC(=C1F)C)Br
Synonym 5-bromo-2-fluoro-m-xylene,5-bromo-2-fluoro-3-xylene,4-bromo-2,6-dimethylfluorobenzene,1-bromo-4-fluoro-3,5-dimethylbenzene,5-bromo-2-fluoro-1,3-xylene,benzene, 5-bromo-2-fluoro-1,3-dimethyl,3,5-dimethyl-4-fluorobromobenzene,5-bromo-2-fluoro-1,3-dimethyl-benzene,ksc486i9j
IUPAC Name 5-bromo-2-fluoro-1,3-dimethylbenzene
InChI Key ZXPHUVHMBKRRJF-UHFFFAOYSA-N
Molecular Formula C8H8BrF
15

2-Iodo-4,6-dimethylaniline, 98%, Thermo Scientific Chemicals

CAS: 4102-54-9 Molecular Formula: C8H10IN Molecular Weight (g/mol): 247.079 MDL Number: MFCD07779005 InChI Key: ODPOIEACUVQCBZ-UHFFFAOYSA-N Synonym: 2,4-dimethyl-6-iodoaniline,2-iodo-4,6-di-methylaniline,benzenamine,2-iodo-4,6-dimethyl PubChem CID: 14040290 IUPAC Name: 2-iodo-4,6-dimethylaniline SMILES: CC1=CC(=C(C(=C1)I)N)C

PubChem CID 14040290
CAS 4102-54-9
Molecular Weight (g/mol) 247.079
MDL Number MFCD07779005
SMILES CC1=CC(=C(C(=C1)I)N)C
Synonym 2,4-dimethyl-6-iodoaniline,2-iodo-4,6-di-methylaniline,benzenamine,2-iodo-4,6-dimethyl
IUPAC Name 2-iodo-4,6-dimethylaniline
InChI Key ODPOIEACUVQCBZ-UHFFFAOYSA-N
Molecular Formula C8H10IN