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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

Xylenes (Histological), Fisher Chemical™

CAS: 1330-20-7 Formule moléculaire: C8H10 Numéro MDL: MFCD00077264 Synonyme: Xylol,Dimethylbenzene

Synonyme Xylol,Dimethylbenzene
Numéro MDL MFCD00077264
CAS 1330-20-7
Formule moléculaire C8H10
2

Xylenes (Certified ACS), Fisher Chemical™

CAS: 1330-20-7 Numéro MDL: MFCD00077264

Numéro MDL MFCD00077264
CAS 1330-20-7
3
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o-Xylene (Certified), Fisher Chemical

CAS: 95-47-6 Formule moléculaire: C8H10 Poids moléculaire (g/mol): 106.17 Numéro MDL: MFCD00008519 Clé InChI: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonyme: o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes CID PubChem: 7237 ChEBI: CHEBI:28063 Nom IUPAC: 1,2-xylene SMILES: CC1=CC=CC=C1C

Poids moléculaire (g/mol) 106.17
Synonyme o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes
Numéro MDL MFCD00008519
CAS 95-47-6
CID PubChem 7237
ChEBI CHEBI:28063
Nom IUPAC 1,2-xylene
Clé InChI CTQNGGLPUBDAKN-UHFFFAOYSA-N
SMILES CC1=CC=CC=C1C
Formule moléculaire C8H10
5

2,4-Dimethylphenyl isocyanate, 98+%

CAS: 51163-29-2 Formule moléculaire: C9H9NO Poids moléculaire (g/mol): 147.177 Numéro MDL: MFCD00013853 Clé InChI: QUOBVYPFBJUOAJ-UHFFFAOYSA-N Synonyme: 2,4-dimethylphenyl isocyanate,2,4-dimethylphenylisocyanate,benzene, 1-isocyanato-2,4-dimethyl,2,4-dimethylbenzenisocyanate,acmc-20aoc8,1-isocyanato-2,4-dimethyl-benzene CID PubChem: 5207585 Nom IUPAC: 1-isocyanato-2,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)N=C=O)C

Poids moléculaire (g/mol) 147.177
Synonyme 2,4-dimethylphenyl isocyanate,2,4-dimethylphenylisocyanate,benzene, 1-isocyanato-2,4-dimethyl,2,4-dimethylbenzenisocyanate,acmc-20aoc8,1-isocyanato-2,4-dimethyl-benzene
Numéro MDL MFCD00013853
CAS 51163-29-2
CID PubChem 5207585
Nom IUPAC 1-isocyanato-2,4-dimethylbenzene
Clé InChI QUOBVYPFBJUOAJ-UHFFFAOYSA-N
SMILES CC1=CC(=C(C=C1)N=C=O)C
Formule moléculaire C9H9NO
6

2,5-Dimethylphenyl isocyanate, 97%

CAS: 40397-98-6 Formule moléculaire: C9H9NO Poids moléculaire (g/mol): 147.18 Numéro MDL: MFCD00013854 Clé InChI: SOXVXJQIQVOCAY-UHFFFAOYSA-N Synonyme: 2,5-dimethylphenyl isocyanate,2,5-dimethylphenylisocyanate,benzene, 2-isocyanato-1,4-dimethyl,2,5-dimethyl phenylisocyanate,2,5-dimethylbenzenisocyanate,acmc-1art9,1-isocyanato-2,5-dimethyl-benzene CID PubChem: 98605 ChEBI: CHEBI:60097 Nom IUPAC: 2-isocyanato-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(=C1)N=C=O

Poids moléculaire (g/mol) 147.18
Synonyme 2,5-dimethylphenyl isocyanate,2,5-dimethylphenylisocyanate,benzene, 2-isocyanato-1,4-dimethyl,2,5-dimethyl phenylisocyanate,2,5-dimethylbenzenisocyanate,acmc-1art9,1-isocyanato-2,5-dimethyl-benzene
Numéro MDL MFCD00013854
CAS 40397-98-6
CID PubChem 98605
ChEBI CHEBI:60097
Nom IUPAC 2-isocyanato-1,4-dimethylbenzene
Clé InChI SOXVXJQIQVOCAY-UHFFFAOYSA-N
SMILES CC1=CC=C(C)C(=C1)N=C=O
Formule moléculaire C9H9NO
7

Xylenes, technical

CAS: 1330-20-7 Formule moléculaire: C8H10 Poids moléculaire (g/mol): 106.17 Clé InChI: IVSZLXZYQVIEFR-UHFFFAOYSA-N Nom IUPAC: 1,3-xylene SMILES: CC1=CC(C)=CC=C1

Poids moléculaire (g/mol) 106.17
CAS 1330-20-7
Nom IUPAC 1,3-xylene
Clé InChI IVSZLXZYQVIEFR-UHFFFAOYSA-N
SMILES CC1=CC(C)=CC=C1
Formule moléculaire C8H10
8

Xylenes, extra pure, mixture of isomers

CAS: 1330-20-7 Formule moléculaire: C8H10 Synonyme: Dimethylbenzene

Synonyme Dimethylbenzene
CAS 1330-20-7
Formule moléculaire C8H10
9

3,4-Dimethylphenylacetic acid, 98%

CAS: 17283-16-8 Formule moléculaire: C10H11O2 Poids moléculaire (g/mol): 163.20 Numéro MDL: MFCD02664684 Clé InChI: OTTPBKINJOYJGW-UHFFFAOYSA-M CID PubChem: 296013 Nom IUPAC: 2-(3,4-dimethylphenyl)acetic acid SMILES: CC1=CC=C(CC([O-])=O)C=C1C

Poids moléculaire (g/mol) 163.20
Numéro MDL MFCD02664684
CAS 17283-16-8
CID PubChem 296013
Nom IUPAC 2-(3,4-dimethylphenyl)acetic acid
Clé InChI OTTPBKINJOYJGW-UHFFFAOYSA-M
SMILES CC1=CC=C(CC([O-])=O)C=C1C
Formule moléculaire C10H11O2
10

4-Nitro-o-xylene, 99%

CAS: 99-51-4 Formule moléculaire: C8H9NO2 Poids moléculaire (g/mol): 151.17 Numéro MDL: MFCD00007268 Clé InChI: HFZKOYWDLDYELC-UHFFFAOYSA-N Synonyme: 4-nitro-o-xylene,p-nitro-o-xylene,o-xylene, 4-nitro,benzene, 1,2-dimethyl-4-nitro,para-nitro-ortho-xylene,3,4-dimethyl-1-nitrobenzene,4-nitro-1,2-dimethylbenzene,1,2-dimethyl-4-nitrobenzol,3,4-dimethylnitrobenzene,ccris 3118 CID PubChem: 7440 Nom IUPAC: 1,2-dimethyl-4-nitrobenzene SMILES: CC1=CC=C(C=C1C)[N+]([O-])=O

Poids moléculaire (g/mol) 151.17
Synonyme 4-nitro-o-xylene,p-nitro-o-xylene,o-xylene, 4-nitro,benzene, 1,2-dimethyl-4-nitro,para-nitro-ortho-xylene,3,4-dimethyl-1-nitrobenzene,4-nitro-1,2-dimethylbenzene,1,2-dimethyl-4-nitrobenzol,3,4-dimethylnitrobenzene,ccris 3118
Numéro MDL MFCD00007268
CAS 99-51-4
CID PubChem 7440
Nom IUPAC 1,2-dimethyl-4-nitrobenzene
Clé InChI HFZKOYWDLDYELC-UHFFFAOYSA-N
SMILES CC1=CC=C(C=C1C)[N+]([O-])=O
Formule moléculaire C8H9NO2
11

Xylenes, 98%, pure, mixture of isomers

CAS: 1330-20-7 Formule moléculaire: C8H10 Numéro MDL: MFCD00077264 Synonyme: Dimethylbenzene

Synonyme Dimethylbenzene
Numéro MDL MFCD00077264
CAS 1330-20-7
Formule moléculaire C8H10
12

2,6-Dimethylphenyl isocyanate, 98%

CAS: 28556-81-2 Formule moléculaire: C9H9NO Poids moléculaire (g/mol): 147.18 Numéro MDL: MFCD00002012 Clé InChI: YQLRKXVEALTVCZ-UHFFFAOYSA-N Synonyme: 2,6-dimethylphenyl isocyanate,benzene, 2-isocyanato-1,3-dimethyl,2,6-dimethylphenylisocyanate,2,6-xylyl isocyanate,unii-2ql5mu0e0c,2ql5mu0e0c,isocyanic acid 2,6-dimethylphenyl ester,2,6-dimethylbenzenisocyanate,2,6-dimethyl phenyl isocyanate,2-isocyanato-1,3-dimethyl-benzene CID PubChem: 98787 Nom IUPAC: 2-isocyanato-1,3-dimethylbenzene SMILES: CC1=CC=CC(C)=C1N=C=O

Poids moléculaire (g/mol) 147.18
Synonyme 2,6-dimethylphenyl isocyanate,benzene, 2-isocyanato-1,3-dimethyl,2,6-dimethylphenylisocyanate,2,6-xylyl isocyanate,unii-2ql5mu0e0c,2ql5mu0e0c,isocyanic acid 2,6-dimethylphenyl ester,2,6-dimethylbenzenisocyanate,2,6-dimethyl phenyl isocyanate,2-isocyanato-1,3-dimethyl-benzene
Numéro MDL MFCD00002012
CAS 28556-81-2
CID PubChem 98787
Nom IUPAC 2-isocyanato-1,3-dimethylbenzene
Clé InChI YQLRKXVEALTVCZ-UHFFFAOYSA-N
SMILES CC1=CC=CC(C)=C1N=C=O
Formule moléculaire C9H9NO
13

2,4-Dimethylbenzoic acid, 97%

CAS: 611-01-8 Formule moléculaire: C9H10O2 Poids moléculaire (g/mol): 150.18 Numéro MDL: MFCD00002480 Clé InChI: BKYWPNROPGQIFZ-UHFFFAOYSA-N Synonyme: benzoic acid, 2,4-dimethyl,4-carboxy-1,3-dimethylbenzene,2,4-dimethyl benzoic acid,m-xylene-4-carboxylic acid,2,4-dimethyl-benzoic acid,2,4-dimethylbenzoicacid,m-xylylic acid,pubchem15441,2,4 dimethylbenzoic acid,benzoic acid,4-dimethyl CID PubChem: 11897 ChEBI: CHEBI:64811 Nom IUPAC: 2,4-dimethylbenzoic acid SMILES: CC1=CC=C(C(O)=O)C(C)=C1

Poids moléculaire (g/mol) 150.18
Synonyme benzoic acid, 2,4-dimethyl,4-carboxy-1,3-dimethylbenzene,2,4-dimethyl benzoic acid,m-xylene-4-carboxylic acid,2,4-dimethyl-benzoic acid,2,4-dimethylbenzoicacid,m-xylylic acid,pubchem15441,2,4 dimethylbenzoic acid,benzoic acid,4-dimethyl
Numéro MDL MFCD00002480
CAS 611-01-8
CID PubChem 11897
ChEBI CHEBI:64811
Nom IUPAC 2,4-dimethylbenzoic acid
Clé InChI BKYWPNROPGQIFZ-UHFFFAOYSA-N
SMILES CC1=CC=C(C(O)=O)C(C)=C1
Formule moléculaire C9H10O2
14

4-Fluoro-o-xylene, 98%

CAS: 452-64-2 Formule moléculaire: C8H9F Poids moléculaire (g/mol): 124.158 Numéro MDL: MFCD00039217 Clé InChI: WYHBENDEZDFJNU-UHFFFAOYSA-N Synonyme: 4-fluoro-o-xylene,1,2-dimethyl-4-fluorobenzene,3,4-dimethylfluorobenzene,4-fluoro-1,2-xylene,1-fluoro-3,4-dimethylbenzene,benzene, 4-fluoro-1,2-dimethyl,o-xylene, 4-fluoro,pubchem14118,acmc-1afww,3,4-dimethyl fluorobenzene CID PubChem: 253306 Nom IUPAC: 4-fluoro-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)F)C

Poids moléculaire (g/mol) 124.158
Synonyme 4-fluoro-o-xylene,1,2-dimethyl-4-fluorobenzene,3,4-dimethylfluorobenzene,4-fluoro-1,2-xylene,1-fluoro-3,4-dimethylbenzene,benzene, 4-fluoro-1,2-dimethyl,o-xylene, 4-fluoro,pubchem14118,acmc-1afww,3,4-dimethyl fluorobenzene
Numéro MDL MFCD00039217
CAS 452-64-2
CID PubChem 253306
Nom IUPAC 4-fluoro-1,2-dimethylbenzene
Clé InChI WYHBENDEZDFJNU-UHFFFAOYSA-N
SMILES CC1=C(C=C(C=C1)F)C
Formule moléculaire C8H9F
15

N,N,3,5-Tetramethylaniline, 98%

CAS: 4913-13-7 Formule moléculaire: C10H15N Poids moléculaire (g/mol): 149.237 Numéro MDL: MFCD00008307 Clé InChI: NBFRQCOZERNGEX-UHFFFAOYSA-N Synonyme: benzenamine, n,n,3,5-tetramethyl,n,n-dimethyl-3,5-xylidine,3,5-xylidine, n,n-dimethyl,3,5-dimethylphenyl dimethylamine,acmc-209kew,5-dimethylamino-m-xylene,3,5,n,n-tetramethylaniline,n,n-dimethyl-sym-m-xylidine,n,n,3,5-tetramethyl aniline,n,n-3,5-tetramethylbenzenamine CID PubChem: 78625 Nom IUPAC: N,N,3,5-tetramethylaniline SMILES: CC1=CC(=CC(=C1)N(C)C)C

Poids moléculaire (g/mol) 149.237
Synonyme benzenamine, n,n,3,5-tetramethyl,n,n-dimethyl-3,5-xylidine,3,5-xylidine, n,n-dimethyl,3,5-dimethylphenyl dimethylamine,acmc-209kew,5-dimethylamino-m-xylene,3,5,n,n-tetramethylaniline,n,n-dimethyl-sym-m-xylidine,n,n,3,5-tetramethyl aniline,n,n-3,5-tetramethylbenzenamine
Numéro MDL MFCD00008307
CAS 4913-13-7
CID PubChem 78625
Nom IUPAC N,N,3,5-tetramethylaniline
Clé InChI NBFRQCOZERNGEX-UHFFFAOYSA-N
SMILES CC1=CC(=CC(=C1)N(C)C)C
Formule moléculaire C10H15N