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.
Methyl 3,4-dimethylbenzoate, 98%, Thermo Scientific™
CAS: 38404-42-1 Molecular Formula: C10H12O2 Molecular Weight (g/mol): 164.204 MDL Number: MFCD00219861 InChI Key: PTSSKYUSCIALKU-UHFFFAOYSA-N Synonym: 3,4-dimethylbenzoic acid methyl ester,benzoic acid, 3,4-dimethyl-, methyl ester,acmc-20akhv,4-methoxycarbonyl-o-xylene,#,methyl ester of 3,4-dimethylbenzoic acid PubChem CID: 520902 IUPAC Name: methyl 3,4-dimethylbenzoate SMILES: CC1=C(C=C(C=C1)C(=O)OC)C
o-Xylene, Reagent Grade, ≥98.0%, Solstice
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonym: o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes PubChem CID: 7237 ChEBI: CHEBI:28063 IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
N,N,3,5-Tetramethylaniline 98.0+%, TCI America™
CAS: 4913-13-7 Molecular Formula: C10H15N Molecular Weight (g/mol): 149.237 MDL Number: MFCD00008307 InChI Key: NBFRQCOZERNGEX-UHFFFAOYSA-N Synonym: 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 PubChem CID: 78625 IUPAC Name: N,N,3,5-tetramethylaniline SMILES: CC1=CC(=CC(=C1)N(C)C)C
6-Amino-2,4-xylenol 98.0+%, TCI America™
CAS: 41458-65-5 Molecular Formula: C8H11NO Molecular Weight (g/mol): 137.18 MDL Number: MFCD00007691 InChI Key: GISWNAMJAQRJPC-UHFFFAOYSA-N Synonym: 6-Amino-2,4-dimethylphenol, 2-Hydroxy-3,5-dimethylaniline PubChem CID: 100530 IUPAC Name: 2-amino-4,6-dimethylphenol SMILES: CC1=CC(C)=C(O)C(N)=C1
2,5-Dimethylphenylacetyl Chloride 98.0+%, TCI America™
CAS: 55312-97-5 Molecular Formula: C10H11ClO Molecular Weight (g/mol): 182.647 MDL Number: MFCD12024950 InChI Key: PZRANTBLOIKHJY-UHFFFAOYSA-N PubChem CID: 22561615 IUPAC Name: 2-(2,5-dimethylphenyl)acetyl chloride SMILES: CC1=CC(=C(C=C1)C)CC(=O)Cl
Fisher Science Education™ Xylenes
CAS: 1330-20-7 Synonym: Xylol,Methyltoluene,Dimethylbenzene
Chem-Impex International, Inc. Xylene Cyanol FF | MFCD00019481 | 5G
Xylene Cyanol FF, MFCD00019481, 5G
Electron Microscopy Sciences Xylene Substitute Hemo-De (d-Limonene) 1 GL
An intensive study from 1992 throughout 2000 has shown that Hemo-De (d-Limonene) a terpene-based chemical with a pleasant citrus fragrance, was able to replace many of the clinical laboratories toxic reagents, such as carbol-xylene, xylene, ethyl acetate and formalin.
Hemo-De replaces ethyl acetate in the concentration procedure in parasitology; replaces carbol-xylene, xylene and formalin in the trichrome procedure in parasitology.
Hemo-De replaces xylene in most all procedures in histology. Superior solvent and clearing agent that can be used in all tissue processing, deparaffiniating and slide preparation.
Hemo-De is soluble with alcohol and mounting media. It is biodegradable, non-corrosive, non-flammable (Combustible) and contains no benzene and no toluene. Low toxicity levels. There is minimal tissue shrinkage with reasonably fast drying and leaves no residue.
Sigma Aldrich Fine Chemicals Biosciences Xylazine >=99% | 7361-61-7 | MFCD00057908 | 5G
Xylazine >=99% | Purity: >=99% | Mol Wt: 220.33 | 7361-61-7 | MFCD00057908 | 5G
