Octadecanethiol CAS#2885-00-9

CAS Number: 2885-00-9
Chemical Formula: 式C18H38S
Synonyms:

MERCAPTAN C18
1-OCTADECANETHIOL
NANOTHINKS(R) 18

Appearance: White Solid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Octadecanethiol CAS#2885-00-9

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 102oC.

Octadecanethiol Chemical Properties

Melting point	30-33 °C(lit.)
Boiling point	204-210 °C11 mm Hg(lit.)
density	0.847 g/mL at 25 °C(lit.)
vapor pressure	<0.5 hPa (20 °C)
refractive index	n20/D 1.3610
Fp	55 °F
storage temp.	Store below +30°C.
form	Crystalline Solid
pka	10.49±0.10(Predicted)
color	White
Specific Gravity	0.832 (30℃)0.847
Water Solubility	Insoluble
BRN	1811934
Exposure limits	NIOSH: Ceiling 0.5 ppm(5.9 mg/m3)
Stability:	Stability Combustible. Stable. Incompatible with strong oxidizing agents, bases, reducing agents, alkali metals.
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
InChIKey	QJAOYSPHSNGHNC-UHFFFAOYSA-N
SMILES	CCCCCCCCCCCCCCCCCCS
LogP	8 at 20℃
CAS DataBase Reference	2885-00-9(CAS DataBase Reference)
NIST Chemistry Reference	1-Octadecanethiol(2885-00-9)
EPA Substance Registry System	1-Octadecanethiol (2885-00-9)

Safety Information

Hazard Codes	F,Xi
Risk Statements	36/37/38
Safety Statements	7-16-37/39-26-36
OEL	Ceiling: 0.5 ppm (5.9 mg/m3) [15-minute]
RIDADR	UN 1170 3/PG 2
WGK Germany	3
Autoignition Temperature	>200 °C
TSCA	TSCA listed
HS Code	29309070
Storage Class	11 - Combustible Solids
Hazard Classifications	Aquatic Acute 1 Skin Irrit. 2
Toxicity	LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rat > 2000 mg/kg

Product Application Of Octadecanethiol CAS#2885-00-9

ODT is used in the surface modification of gold nanoparticle (AuNPs)/Nickel (Ni) foam conjugate for the preparation of a 3D surface enhanced Raman spectroscopy(SERS) substrate for the detection of organic pollutants. It may also be used enhance the superhydrophobic properties for different materials like nano-sized copper films, graphene and silica for different applications like mercury detection and electrochemical analysis.

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