247642

Xylenes

ACS reagent, ≥98.5% xylenes + ethylbenzene basis

• Synonym(s): Xylene mixture of isomers
• Linear Formula: C₆H₄(CH₃)₂
• CAS Number: 1330-20-7
• Molecular Weight: 106.17
• MDL number: MFCD00077264
• UNSPSC Code: 12352002
• PubChem Substance ID: 329752747
• NACRES: NA.21
• grade: ACS reagent
• bp: 137-140 °C (lit.)
• vapor pressure: 18 mmHg ( 37.7 °C)

Properties

• grade: ACS reagent
• Quality Level: 200
• vapor density: 3.7 (vs air)
• vapor pressure: 18 mmHg ( 37.7 °C)
• Assay: ≥98.5% xylenes + ethylbenzene basis
• form: liquid
• composition: C₆H₅CH₂CH₃, ≤25%
• expl. lim.: 7 %
• dilution: (for analytical testing)
• impurities: H₂SO₄, passes test; ≤0.003% S compounds; ≤0.05% water
• evapn. residue: ≤0.002%
• color: APHA: ≤10
• refractive index: n20/D 1.497 (lit.)
• bp: 137-140 °C (lit.)
• mp: -34 °C
• density: 0.86 g/mL at 25 °C (lit.)
• SMILES string: Cc1ccc(C)cc1.Cc2cccc(C)c2.Cc3ccccc3C
• InChI: 1S/3C8H10/c1-7-3-5-8(2)6-4-7;1-7-4-3-5-8(2)6-7;1-7-5-3-4-6-8(7)2/h3*3-6H,1-2H3
• InChI key: MVZVDAGWAAZJPE-UHFFFAOYSA-N

Description

General description

Xylenes is a mixture of isomeric ortho-,meta- and para- forms of xylene which is an aromatic hydrocarbon widelyused as a solvent in various chemical reactions.

Application

Xylenes can be used as a solvent:

• In the tetraphosphine/palladium-catalyzed Suzuki cross-coupling with sterically hindered aryl halides and arylboronic acids to synthesize tri-ortho-substituted biaryl adducts.
• For the N-alkylation of amines or ammonia with alcohols to synthesize N-alkyl amines.
• To synthesize aromatic polyimides by reacting unsymmetric phosphinated diamines and dianhydrides via solution polymerization.

Packaging

poly-coated bottles available: product numbers 247642-1L-CB, 247642-4L-CB and 247642-4X4L-CB

Safety Information

• Pictograms: GHS02,GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H226,H304,H312 + H332,H315,H319,H335,H373,H412
• Precautionary Statements: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT RE 2 - STOT RE 2 Inhalation - STOT SE 3
• Target Organs: Central nervous system,Liver,Kidney, hearing organs, Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 77.0 °F - closed cup
• Flash Point(C): 25 °C - closed cup