74731

1-Octadecanethiol

purum, ≥95.0% (GC)

• Synonyme(s) : Mercaptan C₁₈, Octadecyl mercaptan, Stearyl mercaptan
• Formule linéaire : CH₃(CH₂)₁₇SH
• CAS Number: 2885-00-9
• Poids moléculaire : 286.56
• Beilstein: 1811934
• Numéro CE : 220-744-1
• Numéro MDL: MFCD00004886
• Code UNSPSC : 12352300
• ID de substance PubChem : 329765824
• Nomenclature NACRES : NA.23

Propriétés

• Qualité: purum
• Niveau de qualité: 200
• Essai: ≥95.0% (GC)
• Forme: solid
• pb: 204-210 °C/11 mmHg (lit.)
• Pf: 30-33 °C (lit.)
• Densité: 0.847 g/mL at 25 °C (lit.)
• Chaîne SMILES: CCCCCCCCCCCCCCCCCCS
• InChI: 1S/C18H38S/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h19H,2-18H2,1H3
• Clé InChI: QJAOYSPHSNGHNC-UHFFFAOYSA-N

Description

Description générale

1-Octadecanethiol (ODT) is a water soluble sulfur compound with an 18 carbon alkyl chain, which forms a strong hydrophobic assembly with transition metals, like gold .It forms self-assembled monolayers (SAMs) on the surface of such transition metals. The thiol membrane when covalently bonded with the surface of the metal electrode, it shows electrostriction phenomenon leading to variation in capacitance.ODT SAMs have a hydrophobic surface with contact angle of 102^oC.

Application

ODT is used to deposit thiolated molecules onto the surface of gold substrates, such as

• SAMs on gold quartz crystal resonators.
• on the tip of atomic force microscope probes.
• capacitive sensors.

Remarque sur l'analyse

may contain precipitation in melt

Informations sur la sécurité

• Pictogrammes: GHS07,GHS09
• Mention d'avertissement: Warning
• Mentions de danger: H315,H400
• Conseils de prudence: P264 - P273 - P280 - P302 + P352 - P332 + P313 - P362 + P364
• Classification des risques: Aquatic Acute 1 - Skin Irrit. 2
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: dust mask type N95 (US), Eyeshields, Gloves