534056

Xylenes

histological grade

• 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: 329757880
• NACRES: NA.21

Properties

• grade: histological grade
• Quality Level: 100
• vapor density: 3.7 (vs air)
• vapor pressure: 18 mmHg ( 37.7 °C)
• assay: ≥75.0% (xylenes isomers)
• form: liquid
• expl. lim.: 7 %
• impurities: ≤0.05% (water); ≤25% ethylbenzene
• evapn. residue: <0.002%
• refractive index: n20/D 1.497 (lit.)
• bp: 137-140 °C (lit.)
• mp: -34 °C
• density: 0.86 g/mL at 25 °C (lit.)
• application(s): histology
• storage temp.: room temp
• 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 are an isomeric mixture of aromatic hydrocarbons namely, o-xylene, m-xylene, and p-xylene. It is used as a solvent in the pharmaceutical, printing, rubber, cleaning agent, paint thinner, varnish, synthetic fiber, and leather industries.

Application

Xylenes (histological grade) can be used as a clearing agent in routine histology and cytology applications to remove paraffin from tissue section slides before staining.
It can be used in:      

• Cresyl violet staining.     
• Fluoro-Jade B staining process.      
• Giemsa cell staining protocols.

Packaging

20 L in steel drum
500 mL in glass bottle
534056-4L , 4×4 L in glass bottle / 534056-4L-D in poly bottle

Safety Information

• pictograms: GHS02,GHS08,GHS07
• signalword: Danger
• hcodes: H226,H304,H312 + H332,H315,H319,H335,H373,H412
• pcodes: 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: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: 77.0 °F - closed cup
• flash_point_c: 25 °C - closed cup