2885-00-9
Product Name:
Octadecanethiol
Formula:
C18H38S
Synonyms:
1-Octadecanethiol;Mercaptan C18;n-Octadecyl mercaptan, Stearyl mercaptane;Octadecyl mercaptan;Stearyl mercaptan
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 1-octadecanethiol appears as white powder with an extremely unpleasant smell. May be harmful by ingestion, inhalation or through skin contact. Eye, skin and respiratory irritant. |
|---|---|
| Melting Point | 77 °F (NIOSH, 2023) |
| Flash Point | 185 °C |
| Solubility | Insoluble (NIOSH, 2023) |
| Density | 0.85 (NIOSH, 2023) - Less dense than water; will float |
| LogP | 9.12 (estimated) |
| Decomposition | 366 °C |
| Chemical Classes | Other Classes -> Thiols |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 ![]() Environment GHS09 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H400:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 286.6 g/mol |
|---|---|
| XLogP3 | 9.4 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 16 |
| Exact Mass | 286.26942239 g/mol |
| Monoisotopic Mass | 286.26942239 g/mol |
| Topological Polar Surface Area | 1 Ų |
| Heavy Atom Count | 19 |
| Formal Charge | 0 |
| Complexity | 145 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
1-octadecanethiol appears as white powder with an extremely unpleasant smell. May be harmful by ingestion, inhalation or through skin contact. Eye, skin and respiratory irritant.


