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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.

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1

N,N,3,5-tetramethylanilin, 98%

CAS: 4913-13-7 Molekylær formel: C10H15N Molekylvægt (g/mol): 149.237 MDL nummer: MFCD00008307 InChI nøgle: 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 navn: N,N,3,5-tetramethylanilin SMIL: CC1=CC(=CC(=C1)N(C)C)C

MDL nummer MFCD00008307
PubChem CID 78625
Molekylvægt (g/mol) 149.237
CAS 4913-13-7
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
SMIL CC1=CC(=CC(=C1)N(C)C)C
IUPAC navn N,N,3,5-tetramethylanilin
InChI nøgle NBFRQCOZERNGEX-UHFFFAOYSA-N
Molekylær formel C10H15N
2

4-Bromo-N,N,2,6-tetramethylanilin, 98%

CAS: 50638-54-5 Molekylær formel: C10H14BrN Molekylvægt (g/mol): 228.133 MDL nummer: MFCD00100113 InChI nøgle: NDDKEDQKCHIHMI-UHFFFAOYSA-N PubChem CID: 142731 IUPAC navn: 4-brom-N,N,2,6-tetramethylanilin SMIL: CC1=CC(=CC(=C1N(C)C)C)Br

MDL nummer MFCD00100113
PubChem CID 142731
Molekylvægt (g/mol) 228.133
CAS 50638-54-5
SMIL CC1=CC(=CC(=C1N(C)C)C)Br
IUPAC navn 4-brom-N,N,2,6-tetramethylanilin
InChI nøgle NDDKEDQKCHIHMI-UHFFFAOYSA-N
Molekylær formel C10H14BrN
3

2-klor-N-(2,3-dimethylphenyl)benzamid, 97%

CAS: 196617-88-6 Molekylær formel: C15H14ClNO Molekylvægt (g/mol): 259.733 MDL nummer: MFCD00018254 InChI nøgle: 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 navn: 2-chlor-N-(2,3-dimethylphenyl)benzamid SMIL: CC1=C(C(=CC=C1)NC(=O)C2=CC=CC=C2Cl)C

MDL nummer MFCD00018254
PubChem CID 295079
Molekylvægt (g/mol) 259.733
CAS 196617-88-6
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
SMIL CC1=C(C(=CC=C1)NC(=O)C2=CC=CC=C2Cl)C
IUPAC navn 2-chlor-N-(2,3-dimethylphenyl)benzamid
InChI nøgle OUAGJVUPQKYHDU-UHFFFAOYSA-N
Molekylær formel C15H14ClNO
4

2,6-dichlor-N-(2,6-dimethylphenyl)hexanamid, TRC

CAS: 1037184-07-8 Molekylær formel: C14 H19 Cl2 N O Molekylvægt (g/mol): 288.21 Synonym: (2RS)-2,6-Dichloro-N-(2,6-dimethylphenyl)hexanamide,Bupivacaine Hydrochloride Imp. D (EP) IUPAC navn: 2,6-dicloro-N-(2,6-dimethylphenyl)hexanamid SMIL: Cc1cccc(C)c1NC(=O)C(Cl)CCCCCl

Molekylvægt (g/mol) 288.21
CAS 1037184-07-8
Synonym (2RS)-2,6-Dichloro-N-(2,6-dimethylphenyl)hexanamide,Bupivacaine Hydrochloride Imp. D (EP)
SMIL Cc1cccc(C)c1NC(=O)C(Cl)CCCCCl
IUPAC navn 2,6-dicloro-N-(2,6-dimethylphenyl)hexanamid
Molekylær formel C14 H19 Cl2 N O
5

p-Xylene, 99%, for HPLC

CAS: 106-42-3 Molekylær formel: C8H10 Molekylvægt (g/mol): 106.17 MDL nummer: MFCD00008556 InChI nøgle: URLKBWYHVLBVBO-UHFFFAOYSA-N Synonym: p-xylene,para-xylene,1,4-dimethylbenzene,p-methyltoluene,p-dimethylbenzene,p-xylol,benzene, 1,4-dimethyl,4-xylene,chromar,4-methyltoluene PubChem CID: 7809 ChEBI: CHEBI:27417 IUPAC navn: 1,4-xylen SMIL: CC1=CC=C(C)C=C1

MDL nummer MFCD00008556
PubChem CID 7809
Molekylvægt (g/mol) 106.17
CAS 106-42-3
ChEBI CHEBI:27417
Synonym p-xylene,para-xylene,1,4-dimethylbenzene,p-methyltoluene,p-dimethylbenzene,p-xylol,benzene, 1,4-dimethyl,4-xylene,chromar,4-methyltoluene
SMIL CC1=CC=C(C)C=C1
IUPAC navn 1,4-xylen
InChI nøgle URLKBWYHVLBVBO-UHFFFAOYSA-N
Molekylær formel C8H10
7

3-Bromo-o-xylen, 99%

CAS: 576-23-8 Molekylær formel: C8H9Br Molekylvægt (g/mol): 185.06 MDL nummer: MFCD00000069 InChI nøgle: WLPXNBYWDDYJTN-UHFFFAOYSA-N Synonym: 3-bromo-o-xylene,3-bromo-1,2-dimethylbenzene,2,3-dimethylbromobenzene,2,3-dimethyl bromobenzene,benzene, bromodimethyl,1-bromo-2,3-dimethyl-benzene,benzene, 1-bromo-2,3-dimethyl,bromoxilene,xylylbromid,bromo-o-xylene PubChem CID: 68472 IUPAC navn: 1-brom-2,3-dimethylbenzen SMIL: CC1=CC=CC(Br)=C1C

MDL nummer MFCD00000069
PubChem CID 68472
Molekylvægt (g/mol) 185.06
CAS 576-23-8
Synonym 3-bromo-o-xylene,3-bromo-1,2-dimethylbenzene,2,3-dimethylbromobenzene,2,3-dimethyl bromobenzene,benzene, bromodimethyl,1-bromo-2,3-dimethyl-benzene,benzene, 1-bromo-2,3-dimethyl,bromoxilene,xylylbromid,bromo-o-xylene
SMIL CC1=CC=CC(Br)=C1C
IUPAC navn 1-brom-2,3-dimethylbenzen
InChI nøgle WLPXNBYWDDYJTN-UHFFFAOYSA-N
Molekylær formel C8H9Br
8

3,4-Dimethylthiobenzamide, 97%, Thermo Scientific Chemicals

CAS: 58952-03-7 Molekylær formel: C9H11NS Molekylvægt (g/mol): 165.25 MDL nummer: MFCD06738326 InChI nøgle: MGSZKKVFYBQMPF-UHFFFAOYSA-N Synonym: 3,4-dimethyl-thiobenzamide,3,4-dimethylthiobenzamide,3,4-dimethylbenzothioamide,3,4-dimethylbenzene-1-carbothioamide,3,4-dimethyl-thiobenzamid PubChem CID: 20470851 IUPAC navn: 3,4-dimethylbenzencarbothioamid SMIL: CC1=C(C)C=C(C=C1)C(N)=S

MDL nummer MFCD06738326
PubChem CID 20470851
Molekylvægt (g/mol) 165.25
CAS 58952-03-7
Synonym 3,4-dimethyl-thiobenzamide,3,4-dimethylthiobenzamide,3,4-dimethylbenzothioamide,3,4-dimethylbenzene-1-carbothioamide,3,4-dimethyl-thiobenzamid
SMIL CC1=C(C)C=C(C=C1)C(N)=S
IUPAC navn 3,4-dimethylbenzencarbothioamid
InChI nøgle MGSZKKVFYBQMPF-UHFFFAOYSA-N
Molekylær formel C9H11NS
9
Kampagner er tilgængelige

Lidocain, 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

MDL nummer MFCD00026733
PubChem CID 3676
Molekylvægt (g/mol) 234.343
CAS 137-58-6
ChEBI CHEBI:6456
Synonym lidocaine,lignocaine,xylocaine,lidoderm,2-diethylamino-n-2,6-dimethylphenyl acetamide,anestacon,esracaine,duncaine,cappicaine,gravocain
SMIL CCN(CC)CC(=O)NC1=C(C=CC=C1C)C
IUPAC navn 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamid
InChI nøgle NNJVILVZKWQKPM-UHFFFAOYSA-N
Molekylær formel C14H22N2O
10

4,5-Dimethyl-o-phenylendiamin, 98%, mange indeholder op til ca. 15% vand

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

MDL nummer MFCD00007729
PubChem CID 76635
Molekylvægt (g/mol) 136.20
CAS 3171-45-7
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
SMIL CC1=CC(N)=C(N)C=C1C
IUPAC navn 4,5-dimethylbenzen-1,2-diamin
InChI nøgle XSZYBMMYQCYIPC-UHFFFAOYSA-N
Molekylær formel C8H12N2
11

2,5-dimethylanilin, 98+%

CAS: 95-78-3 Molekylær formel: C8H11N Molekylvægt (g/mol): 121.18 MDL nummer: MFCD00007743 InChI nøgle: VOWZNBNDMFLQGM-UHFFFAOYSA-N Synonym: 2,5-xylidine,p-xylidine,2,5-dimethylphenylamine,2-amino-1,4-xylene,2,5-dimethylbenzenamine,benzenamine, 2,5-dimethyl,5-methyl-o-toluidine,6-methyl-m-toluidine,1-amino-2,5-dimethylbenzene,p-dimethylaniline PubChem CID: 7259 ChEBI: CHEBI:518305 IUPAC navn: 2,5-dimethylanilin SMIL: CC1=CC=C(C)C(N)=C1

MDL nummer MFCD00007743
PubChem CID 7259
Molekylvægt (g/mol) 121.18
CAS 95-78-3
ChEBI CHEBI:518305
Synonym 2,5-xylidine,p-xylidine,2,5-dimethylphenylamine,2-amino-1,4-xylene,2,5-dimethylbenzenamine,benzenamine, 2,5-dimethyl,5-methyl-o-toluidine,6-methyl-m-toluidine,1-amino-2,5-dimethylbenzene,p-dimethylaniline
SMIL CC1=CC=C(C)C(N)=C1
IUPAC navn 2,5-dimethylanilin
InChI nøgle VOWZNBNDMFLQGM-UHFFFAOYSA-N
Molekylær formel C8H11N
12

Xylen, teknisk, Fisher Chemical™

CAS: 1330-20-7 Molekylær formel: C8H10 Molekylvægt (g/mol): 106.17 MDL nummer: 77264 InChI nøgle: IVSZLXZYQVIEFR-UHFFFAOYSA-N IUPAC navn: 1,3-xylen SMIL: CC1=CC(C)=CC=C1

MDL nummer 77264
Molekylvægt (g/mol) 106.17
CAS 1330-20-7
SMIL CC1=CC(C)=CC=C1
IUPAC navn 1,3-xylen
InChI nøgle IVSZLXZYQVIEFR-UHFFFAOYSA-N
Molekylær formel C8H10
14

2,6-dimethylphenyl isothiocyanat, 97%, Thermo Scientific™

CAS: 19241-16-8 Molekylær formel: C9H9NS Molekylvægt (g/mol): 163.238 InChI nøgle: UULUECCNPPJFBU-UHFFFAOYSA-N Synonym: 2,6-dimethylphenyl isothiocyanate,2,6-xylyl isothiocyanate,2,6-dimethylphenylisothiocyanate,benzene, 2-isothiocyanato-1,3-dimethyl,2-isothiocyanato-1,3-dimethyl-benzene,benzene,2-isothiocyanato-1,3-dimethyl,2,6-dimethylbenzenisothiocyanate,acmc-20ao7z,2,6-dimethylphenyl-isothiocyanate,2,6-dimethylphenyl-1-isothiocyanate PubChem CID: 87976 IUPAC navn: 2-isothiocyanato-1,3-dimethylbenzen SMIL: CC1=C(C(=CC=C1)C)N=C=S

PubChem CID 87976
Molekylvægt (g/mol) 163.238
CAS 19241-16-8
Synonym 2,6-dimethylphenyl isothiocyanate,2,6-xylyl isothiocyanate,2,6-dimethylphenylisothiocyanate,benzene, 2-isothiocyanato-1,3-dimethyl,2-isothiocyanato-1,3-dimethyl-benzene,benzene,2-isothiocyanato-1,3-dimethyl,2,6-dimethylbenzenisothiocyanate,acmc-20ao7z,2,6-dimethylphenyl-isothiocyanate,2,6-dimethylphenyl-1-isothiocyanate
SMIL CC1=C(C(=CC=C1)C)N=C=S
IUPAC navn 2-isothiocyanato-1,3-dimethylbenzen
InChI nøgle UULUECCNPPJFBU-UHFFFAOYSA-N
Molekylær formel C9H9NS
15

4,5-Dimethyl-o-phenylendiamin, 98%

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

MDL nummer MFCD00007729
PubChem CID 76635
Molekylvægt (g/mol) 136.20
CAS 3171-45-7
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
SMIL CC1=CC(N)=C(N)C=C1C
IUPAC navn 4,5-dimethylbenzen-1,2-diamin
InChI nøgle XSZYBMMYQCYIPC-UHFFFAOYSA-N
Molekylær formel C8H12N2