1-Nonanethiol

Synonym(s):1-Nonyl mercaptan;Mercaptan C₉

CAS NO.：1455-21-6
Empirical Formula: C9H20S
Molecular Weight: 160.32
MDL number: MFCD00004913
EINECS: 215-936-7
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 02:17:00

What is 1-Nonanethiol?

Chemical properties

CLEAR YELLOW LIQUID

The Uses of 1-Nonanethiol

1-Nonanethiol is a germination stimulator. It stimulates the germination of uredospores of Puccinia graminis tritici.

The Uses of 1-Nonanethiol

1-Nonanethiol is mainly used to form self-organized monolayers on gold, mercury, silver and platinum surfaces. These monolayers functionalize the surface atoms and improve the surface property of the composite.

General Description

Colorless liquid with a bad smell. Mp: -21°C; bp: 220°C. Density: 0.840 g cm-3 at 25°C. Combustible liquid.

Reactivity Profile

1-Nonanethiol is incompatible with oxidizing agents, strong acids and strong bases, alkali metals, and nitric acid. Can react with water, steam or acids to produce toxic and flammable vapors. Reacts violently with powerful oxidizing agents such as calcium hypochlorite (Ca(OCl)2) to generate SOx. React with hydrides to form flammable H2 gas; reacts with halogenated hydrocarbons to yield HX. Reacts exothermically with aldehydes. Emits toxic compounds of sulfur when when heated to decomposition.

Properties of 1-Nonanethiol

Melting point:	-20.1°C
Boiling point:	220 °C (lit.)
Density	0.842 g/mL at 25 °C (lit.)
refractive index	n20/D 1.455(lit.)
Flash point:	174 °F
storage temp.	2-8°C
solubility	Chloroform (Sparingly), Methanol (Slightly)
form	Oil
pka	10.52±0.10(Predicted)
color	Colourless
Sensitive	Air Sensitive
BRN	1733631
Exposure limits	NIOSH: Ceiling 0.5 ppm(3.3 mg/m3)
Stability:	Air Sensitive
CAS DataBase Reference	1455-21-6(CAS DataBase Reference)
NIST Chemistry Reference	1-Nonanethiol(1455-21-6)
EPA Substance Registry System	1-Nonanethiol (1455-21-6)

Safety information for 1-Nonanethiol

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.