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.
Lidocaine, TRC
CAS: 137-58-6 Molecular Formula: C14 H22 N2 O Molecular Weight (g/mol): 234.34 Synonym: Lidocaine,Acetamide, 2-(diethylamino)-N-(2,6-dimethylphenyl)-,2',6'-Acetoxylidide, 2-(diethylamino)- (8CI),α-Diethylamino-2,6-acetoxylidide,2-(Diethylamino)-N-(2,6-dimethylphenyl)acetamide,2-(Diethylamino)-2',6'-acetoxylidide,Anestacon,Aritmal,Cuivasil,Dalcaine,Duncaine,ELA-Max,Esracaine,Isicaina,Isicaine,Jetocaine,LMX,Leostesin,Lida-Mantle,LidoPosterine,Lidocadren,Lidocain,Lidoderm,Lignocaine,Linisol,Maricaine,Medicaine,NSC 40030,Penles,Remicaine,Rucaina,Solarcaine,Solcain,Trachisan,Versatis,Xilina,Xybrex,Xycaine,Xylestesin,Xyline,Xylocain,Xylocaine,Xylocitin,Xylovet IUPAC Name: 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide SMILES: CCN(CC)CC(=O)Nc1c(C)cccc1C
Xylazine, TRC
CAS: 7361-61-7 Molecular Formula: C12 H16 N2 S Molecular Weight (g/mol): 220.33 Synonym: 4H-1,3-Thiazin-2-amine, N-(2,6-dimethylphenyl)-5,6-dihydro-,4H-1,3-Thiazine, 5,6-dihydro-2-(2,6-xylidino)- (7CI,8CI),N-(2,6-Dimethylphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine,2-(2,6-Dimethylphenylamino)-5,6-dihydro-4H-1,3-thiazine,Anased,BAY 1470,Cervizine 300,Primazine,Rometar,Sedomin,Wh 7286,Xylaz,Xylazil,Xylazin,Xylazine IUPAC Name: N-(2,6-dimethylphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine SMILES: Cc1cccc(C)c1NC2=NCCCS2
Dexmedetomidine, TRC
CAS: 113775-47-6 Molecular Formula: C13 H16 N2 Molecular Weight (g/mol): 200.28 Synonym: Dexmedetomidine,Dexmedetomidine IUPAC Name: 4-[(1S)-1-(2,3-dimethylphenyl)ethyl]-1H-imidazole SMILES: C[C@H](c1c[nH]cn1)c2cccc(C)c2C
Detomidine Hydrochloride, TRC
CAS: 90038-01-0 Molecular Formula: C12 H14 N2 . Cl H Molecular Weight (g/mol): 222.71 Synonym: Detomidine hydrochloride,4-(2,3-Dimethylbenzyl)-1H-imidazole hydrochloride,1H-Imidazole, 4-[(2,3-dimethylphenyl)methyl]-, monohydrochloride,Detomidine hydrochloride,Domosedan,Dormosedan,MPV 253AII IUPAC Name: 4-[(2,3-dimethylphenyl)methyl]-1H-imidazole;hydrochloride SMILES: Cl.Cc1cccc(Cc2c[nH]cn2)c1C
2,6-Dimethylaniline, TRC
CAS: 87-62-7 Molecular Formula: C8 H11 N Molecular Weight (g/mol): 121.18 Synonym: 2,6-Xylidine (8CI),2,6-Dimethylbenzenamine,1-Amino-2,6-dimethylbenzene,2,6-Dimethylaminobenzene,2,6-Dimethylaniline,2,6-Dimethylphenylamine,2,6-Xylylamine,2-Amino-1,3-dimethylbenzene,2-Amino-1,3-xylene,2-Amino-m-xylene,NSC 7098,o-Xylidine IUPAC Name: 2,6-dimethylaniline SMILES: Cc1cccc(C)c1N
Medetomidine Hydrochloride, TRC
CAS: 86347-15-1 Molecular Formula: C13 H16 N2 . Cl H Molecular Weight (g/mol): 236.74 Synonym: Medetomidine Hydrochloride,1H-Imidazole, 5-[1-(2,3-dimethylphenyl)ethyl]-, hydrochloride (1:1),1H-Imidazole, 4-[1-(2,3-dimethylphenyl)ethyl]-, monohydrochloride (9CI),Domitor,MPV 785,Zalopine,5-[1-(2,3-Dimethylphenyl)ethyl]-1H-imidazole hydrochloride,4-(1-(2,3-Dimethylphenyl)ethyl)-1H-imidazole hydrochloride IUPAC Name: 4-[1-(2,3-dimethylphenyl)ethyl]-1H-imidazole;hydrochloride SMILES: Cl.CC(c1c[nH]cn1)c2cccc(C)c2C
Xylazine Hydrochloride, TRC
CAS: 23076-35-9 Molecular Formula: C12 H16 N2 S . Cl H Molecular Weight (g/mol): 256.79 Synonym: Xylazine Hydrochloride,N-(2,6-Dimethylphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine monohydrochloride,5,6-Dihydro-2-(2,6-xylidino)-4H-1,3-thiazine hydrochloride,BAY 1470 hydrochloride,BAY-Va 1470,Celactal,Narcosyl,Rompun,Xylapan,Xylasol,Xylazine chloride,Xylazine hydrochloride IUPAC Name: N-(2,6-dimethylphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine;hydrochloride SMILES: Cl.Cc1cccc(C)c1NC2=NCCCS2
Dexmedetomidine Hydrochloride, TRC
CAS: 145108-58-3 Molecular Formula: C13 H16 N2 . Cl H Molecular Weight (g/mol): 236.74 Synonym: Dexmedetomidine hydrochloride,1H-Imidazole, 5-[(1S)-1-(2,3-dimethylphenyl)ethyl]-, hydrochloride (1:1),1H-Imidazole, 4-[(1S)-1-(2,3-dimethylphenyl)ethyl]-, monohydrochloride (9CI),1H-Imidazole, 4-[1-(2,3-dimethylphenyl)ethyl]-, monohydrochloride, (S)-,5-[(1S)-1-(2,3-Dimethylphenyl)ethyl]-1H-imidazole hydrochloride,(S)-4-(1-(2,3-Dimethylphenyl)ethyl)-1H-imidazole hydrochloride,Dex,Dexdomitor,Dexmetomidine,Precedex IUPAC Name: 4-[(1S)-1-(2,3-dimethylphenyl)ethyl]-1H-imidazole;hydrochloride SMILES: Cl.C[C@H](c1c[nH]cn1)c2cccc(C)c2C
2,6-Dimethylaniline Hydrochloride, TRC
CAS: 21436-98-6 Molecular Formula: C8 H11 N . Cl H Molecular Weight (g/mol): 157.64 Synonym: Benzenamine, 2,6-dimethyl-, hydrochloride (1:1) (ACI),2,6-Xylidine, hydrochloride (8CI),Benzenamine, 2,6-dimethyl-, hydrochloride (9CI),2,6-Dimethylaniline hydrochloride,2,6-Dimethylbenzenamine hydrochloride IUPAC Name: 2,6-dimethylaniline;hydrochloride SMILES: Cl.Cc1cccc(C)c1N
Spirotetramat (>90%), TRC
CAS: 203313-25-1 Molecular Formula: C21 H27 N O5 Molecular Weight (g/mol): 373.44 Synonym: Carbonic acid, cis-3-(2,5-dimethylphenyl)-8-methoxy-2-oxo-1-azaspiro[4.5]dec-3-en-4-yl ethyl ester,Carbonic acid, 3-(2,5-dimethylphenyl)-8-methoxy-2-oxo-1-azaspiro[4.5]dec-3-en-4-yl ethyl ester, cis-,BYI 8330,Kontos,Movento,Spirotetramat,Ultor IUPAC Name: [3-(2,5-dimethylphenyl)-8-methoxy-2-oxo-1-azaspiro[4.5]dec-3-en-4-yl] ethyl carbonate SMILES: CCOC(=O)OC1=C(C(=O)N[C@@]12CC[C@@H](CC2)OC)c3cc(C)ccc3C
4-Chloro-1,2-dimethylbenzene, TRC
CAS: 615-60-1 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 Synonym: 1,2-Dimethyl-4-chlorobenzene,1-Chloro-3,4-dimethylbenzene,3,4-Dimethylchlorobenzene,3,4-Dimethylphenyl Chloride,4-Chloro-o-xylene,p-Chloro-o-xylene IUPAC Name: 4-chloro-1,2-dimethylbenzene SMILES: CC1=CC=C(C=C1C)Cl
Irganox 1141 (>85%), TRC
CAS: 134701-20-5 Molecular Formula: C24H42O Molecular Weight (g/mol): 346.59 Synonym: 2-(Hexadecan-2-yl)-4,6-dimethylphenol;2,4-Dimethyl-6-(1-methylpentadecyl)phenol IUPAC Name: 2-hexadecan-2-yl-4,6-dimethylphenol SMILES: CCCCCCCCCCCCCCC(C)c1cc(C)cc(C)c1O
2-Chloro-p-xylene, TRC
CAS: 95-72-7 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 Synonym: p-Xylene, 2-chloro- (7CI,8CI),2-Chloro-1,4-dimethylbenzene,1,4-Dimethyl-2-chlorobenzene,1-Chloro-2,5-dimethylbenzene 2,5-Dimethylchlorobenzene,Benzene, 2-chloro-1,4-dimethyl-,Chloro-p-xylene,Monochloro-p-xylene,NSC 60148 IUPAC Name: 2-chloro-1,4-dimethylbenzene SMILES: CC1=C(Cl)C=C(C)C=C1
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