Xylener
Xylener er en hvilken som helst af tre isomerer af dimethylbenzen eller en kombination deraf. Alle er farveløse, brandfarlige væsker sammensat af en central benzenring med to methylgrupper knyttet til substituenter. De kan anvendes som prækursorkemikalier og opløsningsmidler.
Xylener er brandfarlige petrokemiske produkter, der kan fremstilles via katalytisk reformering og kulkarbonisering under koksproduktion og findes i råolie, benzin og flybrændstof. Xylener blev først isoleret fra trætjære og navngivet af den franske kemiker Auguste Cahours.
Hvad er Xylene?
Xylen, mere passende kaldet xylener, refererer til enhver enkelt eller kombination af de tre isomerer af dimethylbenzen. De isomere former betegnes som ortho- (o-), meta- (m-) og para- (p-), en reference til carbonet i benzenringen, hvortil de to methylgrupper er knyttet.
- o-isomer: 1,2-dimethylbenzen
- m-isomer: 1,3-dimethylbenzen
- p-isomer: 1,4-dimethylbenzen
Xylener er farveløse og kan påvises ved lugt i koncentrationer så lave som 0,08 til 3,7 ppm i luft og smages i vand ved 0,53 til 1,8 ppm.
Se analysecertifikatet eller sikkerhedsdatabladet for specifik information om xylendensitet og sikkerhedsrisici.
Hvad bruges xylen til?
Industrielle anvendelser
p-Xylen er en forløber for terephthalsyre og dimethylterephthalat, der bruges til fremstilling af polyethylenterephthalat plastflasker og polyesterbeklædning.
Xylen kan bruges som opløsningsmiddel og er en almindelig komponent i blæk, gummi, klæbemidler og maling- og lakfortyndere. Xylener kan bruges til at rense stål, siliciumskiver og integrerede kredsløb. Medicinske anvendelser omfatter brug som opløsningsmiddel af dentale materialer og ørevoks.
Laboratoriebrug
Xylen kan bruges med tøris i bade, til at fjerne olie fra mikroskopobjektiver og som rengøringsmiddel eller monteringsmateriale i histologiske procedurer.
2,4-Dimethylphenyl isocyanate, 98+%
CAS: 51163-29-2 Molekylær formel: C9H9NO Molekylvægt (g/mol): 147.177 MDL nummer: MFCD00013853 InChI nøgle: QUOBVYPFBJUOAJ-UHFFFAOYSA-N Synonym: 2,4-dimethylphenyl isocyanate,2,4-dimethylphenylisocyanate,benzene, 1-isocyanato-2,4-dimethyl,2,4-dimethylbenzenisocyanate,acmc-20aoc8,1-isocyanato-2,4-dimethyl-benzene PubChem CID: 5207585 IUPAC navn: 1-isocyanato-2,4-dimethylbenzen SMIL: CC1=CC(=C(C=C1)N=C=O)C
2,5-Dimethylphenyl isocyanate, 97%
CAS: 40397-98-6 Molekylær formel: C9H9NO Molekylvægt (g/mol): 147.18 MDL nummer: MFCD00013854 InChI nøgle: SOXVXJQIQVOCAY-UHFFFAOYSA-N Synonym: 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 PubChem CID: 98605 ChEBI: CHEBI:60097 IUPAC navn: 2-isocyanato-1,4-dimethylbenzen SMIL: CC1=CC=C(C)C(=C1)N=C=O
4,5-Dimethyl-o-phenylenediamine, 98%, many contain up to ca 15% water
CAS: 3171-45-7 Molekylær formel: C8H12N2 Molekylvægt (g/mol): 136.20 MDL nummer: MFCD00007729 InChI nøgle: XSZYBMMYQCYIPC-UHFFFAOYSA-N Synonym: 4,5-dimethyl-1,2-phenylenediamine,4,5-diamino-o-xylene,4,5-dimethyl-o-phenylenediamine,1,2-benzenediamine, 4,5-dimethyl,1,2-diamino-4,5-dimethylbenzene,4,5-dimethyl-1,2-benzenediamine,4,5-dimethyl-benzene-1,2-diamine,4,5-dimethyl-ortho-phenylenediamine,4,5-dimethylphenylene-1,2-diamine,4,5-dimethyl-o-phenylenediamine monohydrate PubChem CID: 76635 IUPAC navn: 4,5-dimethylbenzen-1,2-diamin SMIL: CC1=CC(N)=C(N)C=C1C
2,3-Dimethylphenyl isocyanate, 99%
CAS: 1591-99-7 Molekylær formel: C9H9NO Molekylvægt (g/mol): 147.177 MDL nummer: MFCD00013851 InChI nøgle: KNHJIEOCVVIBIV-UHFFFAOYSA-N Synonym: 2,3-dimethylphenyl isocyanate,2,3-dimethylphenylisocyanate,benzene, isocyanatodimethyl,2,3-dimethylbenzenisocyanate,dimethylphenyl isocyanate,acmc-1bttc,1-isocyanato-2,3-dimethyl-benzene,#,benzene,1-isocyanato-2,3-dimethyl PubChem CID: 137096 ChEBI: CHEBI:63899 IUPAC navn: 1-isocyanato-2,3-dimethylbenzen SMIL: CC1=C(C(=CC=C1)N=C=O)C
3,5-dimethylphenylisocyanat, 97 %, Thermo Scientific Chemicals
CAS: 54132-75-1 Molekylær formel: C9H9NO Molekylvægt (g/mol): 147.177 MDL nummer: MFCD00013868 InChI nøgle: DZSGDHNHQAJZCO-UHFFFAOYSA-N Synonym: 3,5-dimethylphenyl isocyanate,3,5-dimethylphenylisocyanate,3,5-xylyl isocyanate,benzene, 1-isocyanato-3,5-dimethyl,isocyanic acid 3,5-dimethylphenyl ester,5-isocyanato-m-xylene,1-isocyanato-3,5-dimethyl-benzene,acmc-1axct,3,5-dimethylbenzenisocyanate,ksc274i2t PubChem CID: 521488 IUPAC navn: 1-isocyanato-3,5-dimethylbenzen SMIL: CC1=CC(=CC(=C1)N=C=O)C
2,6-Dimethylphenyl isocyanate, 98%
CAS: 28556-81-2 Molekylær formel: C9H9NO Molekylvægt (g/mol): 147.18 MDL nummer: MFCD00002012 InChI nøgle: YQLRKXVEALTVCZ-UHFFFAOYSA-N Synonym: 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 PubChem CID: 98787 IUPAC navn: 2-isocyanato-1,3-dimethylbenzen SMIL: CC1=CC=CC(C)=C1N=C=O
Lidocaine, 97.5%
CAS: 137-58-6 Molekylær formel: C14H22N2O Molekylvægt (g/mol): 234.343 MDL nummer: MFCD00026733 InChI nøgle: NNJVILVZKWQKPM-UHFFFAOYSA-N Synonym: lidocaine,lignocaine,xylocaine,lidoderm,2-diethylamino-n-2,6-dimethylphenyl acetamide,anestacon,esracaine,duncaine,cappicaine,gravocain PubChem CID: 3676 ChEBI: CHEBI:6456 IUPAC navn: 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamid SMIL: CCN(CC)CC(=O)NC1=C(C=CC=C1C)C
5-brom-m-xylen, 98 %, Thermo Scientific Chemicals
CAS: 556-96-7 Molekylær formel: C8H9Br Molekylvægt (g/mol): 185.06 InChI nøgle: LMFRTSBQRLSJHC-UHFFFAOYSA-N Synonym: 5-bromo-m-xylene,3,5-dimethylbromobenzene,benzene, 1-bromo-3,5-dimethyl,m-xylene, 5-bromo,5-bromo-1,3-xylene,5-bromo-1,3-dimethylbenzene,1-bromo-3,5-dimethyl-benzene,5-bromo-meta-xylene,5-bromo-3,5-dimethylbenzene,1-bromo-3,5-dimethyl benzene PubChem CID: 136357 IUPAC navn: 1-brom-3,5-dimethylbenzen SMIL: CC1=CC(=CC(=C1)Br)C
2,6-Dimethylaniline, 99%
CAS: 87-62-7 Molekylær formel: C8H11N Molekylvægt (g/mol): 121.18 MDL nummer: MFCD00007747 InChI nøgle: UFFBMTHBGFGIHF-UHFFFAOYSA-N Synonym: 2,6-xylidine,2-amino-m-xylene,o-xylidine,2,6-dimethylbenzenamine,2-amino-1,3-dimethylbenzene,2,6-dimethylphenylamine,benzenamine, 2,6-dimethyl,2,6-xylylamine,2-amino-1,3-xylene,1-amino-2,6-dimethylbenzene PubChem CID: 6896 ChEBI: CHEBI:28738 IUPAC navn: 2,6-dimethylanilin SMIL: CC1=CC=CC(C)=C1N
3,5-Dimethylaniline, 97+%
CAS: 108-69-0 Molekylær formel: C8H11N Molekylvægt (g/mol): 121.18 MDL nummer: MFCD00007813 InChI nøgle: MKARNSWMMBGSHX-UHFFFAOYSA-N Synonym: 3,5-xylidine,benzenamine, 3,5-dimethyl,3,5-xylylamine,3,5-dimethylphenylamine,3,5-xylidene,5-amino-1,3-xylene,1-amino-3,5-dimethylbenzene,3,5-dimethylbenzenamine,3,5-dimethylbenzeneamine,5-amino-1,3-dimethylbenzene PubChem CID: 7949 IUPAC navn: 3,5-dimethylanilin SMIL: CC1=CC(=CC(=C1)N)C
2,4-Dimethylaniline, 99%
CAS: 95-68-1 Molekylær formel: C8H11N Molekylvægt (g/mol): 121.18 MDL nummer: MFCD00007738 InChI nøgle: CZZZABOKJQXEBO-UHFFFAOYSA-N Synonym: 2,4-xylidine,2,4-dimethyl aniline,m-xylidine,m-4-xylidine,2,4-dimethylphenylamine,benzenamine, 2,4-dimethyl,2-methyl-p-toluidine,4-methyl-o-toluidine,1-amino-2,4-dimethylbenzene,4-amino-1,3-xylene PubChem CID: 7250 ChEBI: CHEBI:27840 IUPAC navn: 2,4-dimethylanilin SMIL: CC1=CC(=C(C=C1)N)C
4-Bromo-2,6-dimethylphenyl isocyanate, 98%, Thermo Scientific™
CAS: 77159-76-3 Molekylær formel: C9H8BrNO Molekylvægt (g/mol): 226.07 MDL nummer: MFCD00037040 InChI nøgle: XGBDVSJAHTYSBK-UHFFFAOYSA-N Synonym: 4-bromo-2,6-dimethylphenyl isocyanate,4-bromo-2,6-dimethylphenylisocyanate,4-bromo-2,6-dimethylbenzenisocyanate,benzene,5-bromo-2-isocyanato-1,3-dimethyl,5-bromanyl-2-isocyanato-1,3-dimethyl-benzene,benzene, 5-bromo-2-isocyanato-1,3-dimethyl-9ci PubChem CID: 4430747 IUPAC navn: 5-bromo-2-isocyanato-1,3-dimethylbenzene SMIL: CC1=CC(Br)=CC(C)=C1N=C=O
3,4-Dimethylphenyl isocyanate, 97%
CAS: 51163-27-0 Molekylær formel: C9H9NO Molekylvægt (g/mol): 147.18 MDL nummer: MFCD00013867 InChI nøgle: AYCDBMRVKSXYKW-UHFFFAOYSA-N Synonym: 3,4-dimethylphenyl isocyanate,3,4-dimethylphenylisocyanate,benzene, 4-isocyanato-1,2-dimethyl,3,4-dimethyl phenylisocyanate,3,4-dimethylbenzenisocyanate,acmc-1aump,ksc265g2l,3,4-dimethyl phenyl isocyanate,1-isocyanato-3,4-dimethyl-benzene,4-isocyanato-1,2-dimethyl benzene PubChem CID: 4389663 ChEBI: CHEBI:60098 IUPAC navn: 4-isocyanato-1,2-dimethylbenzene SMIL: CC1=C(C)C=C(C=C1)N=C=O
o-Xylen, spektrofotometrisk kvalitet, 96 % min, Thermo Scientific Chemicals
CAS: 95-47-6 Molekylær formel: C8H10 Molekylvægt (g/mol): 106.17 MDL nummer: MFCD00008519 InChI nøgle: 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 navn: 1,2-xylene SMIL: CC1=CC=CC=C1C
4-Iodo-m-xylene, 95%, Thermo Scientific™
CAS: 4214-28-2 Molekylær formel: C8H9I Molekylvægt (g/mol): 232.06 MDL nummer: MFCD00013706 InChI nøgle: BUNKQJAMHYKQIM-UHFFFAOYSA-N Synonym: 4-iodo-m-xylene,2,4-dimethyliodobenzene,1,3-dimethyl-4-iodobenzene,m-xylene, 4-iodo,benzene, 1-iodo-2,4-dimethyl,2,4-dimethyl-1-iodobenzene,2-iodo-1,5-dimethylbenzene,4-jod-m-xylol,pubchem3869,acmc-209jnr PubChem CID: 77885 IUPAC navn: 1-iodo-2,4-dimethylbenzene SMIL: CC1=CC=C(I)C(C)=C1
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