Cas no 2885-00-9 (Octadecanethiol)
Octadecanethiol (CH?(CH?)??SH) is a long-chain alkanethiol commonly used as a surface modifier and self-assembled monolayer (SAM) forming agent. Its hydrophobic 18-carbon alkyl chain provides excellent stability and ordered molecular packing on metal surfaces, particularly gold, silver, and copper. This compound is valued for its ability to create highly uniform, corrosion-resistant coatings with precise thickness control. Octadecanethiol is widely applied in nanotechnology, biosensor fabrication, and microelectronics due to its strong chemisorption via thiol-metal bonds and tailorable surface wettability. Its chemical inertness and thermal stability make it suitable for applications requiring durable organic thin films. Storage under inert conditions is recommended to prevent oxidation of the thiol group.
Octadecanethiol structure
Product Name:Octadecanethiol
CAS No:2885-00-9
MF:C18H38S
MW:286.559324741364
MDL:MFCD00004886
CID:43526
PubChem ID:24897952
Update Time:2025-05-23
Octadecanethiol Chemical and Physical Properties
Names and Identifiers
-
- n-Octadecyl mercaptan
- 1-OCTADECANETHIOL
- MERCAPTAN C18
- NANOTHINKS(R) 18
- N-OCTADECANETHIOL
- OCTADECANETHIOL
- OCTADECYL MERCAPTAN
- ODM
- STEARYL MERCAPTAN
- STEARYL MERCAPTANE
- 1-Mercaptooctadecane
- octadecane-1-thiol
- octadecanethiol(non-specificname)
- octadecanethiolnormal
- N-Octadecanthiol
- Octadecyl mrcaptan
- 1-octadecanethiol, techn.
- 1-octadecanethiol solution
- nanothinks tm 18
- 1-octadecylthiol
- Mercaptan
- Mercaptan C18,Octadecyl mercaptan,Stearyl mercaptan
- N-OCTADECYLTHIOL
- OCLadecanethiol
- octadecan-1-thiol
- octadecanylmercaptan
- Stearylmercaptan
- OCTADECANTHIOL
- QJAOYSPHSNGHNC-UHFFFAOYSA-N
- Octadecanethol
- octadecane thiol
- 1-octadecanthiol
- Octadecylmercaptan
- C18H38S
- 1-octadecylmercaptan
- KSC201S0P
- NSC5545
- NSC11886
- KS
- MFCD00004886
- O0005
- 17322-94-0
- AKOS015843216
- EINECS 220-744-1
- 1-Octadecanethiol, 98%
- A819631
- D70540
- 2885-00-9
- NSC-5545
- 1-Octadecanethiol, purum, >=95.0% (GC)
- FT-0634531
- DTXSID0062686
- AMY11252
- NS00019803
- 1-Octadecane thiol
- NSC 5545
- SCHEMBL25850
- J-017298
- J-523822
- NSC-11886
- mercaptooctadecane
- DB-047474
- DTXCID8037887
- nOctadecyl mercaptan
- 1-Octadecyl mercaptan
- Octadecanethiol
-
- MDL： MFCD00004886
- 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
- InChI Key： QJAOYSPHSNGHNC-UHFFFAOYSA-N
- SMILES： SCCCCCCCCCCCCCCCCCC
- BRN： 1811934
Computed Properties
- Exact Mass: 286.26900
- Monoisotopic Mass: 286.269422
- Isotope Atom Count: 0
- Hydrogen Bond Donor Count: 1
- Hydrogen Bond Acceptor Count: 1
- Heavy Atom Count: 19
- Rotatable Bond Count: 16
- Complexity: 145
- Covalently-Bonded Unit Count: 1
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count : 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Surface Charge: 0
- Tautomer Count: nothing
- XLogP3: 9.4
- Topological Polar Surface Area: 1
Experimental Properties
- Color/Form: Not available
- Density: 0.847?g/mL?at 25?°C(lit.)
- Melting Point: 30-33?°C (lit.)
- Boiling Point: 204-210?°C/11?mmHg(lit.)
- Flash Point: Fahrenheit: 365 ° f < br / > Celsius: 185 ° C < br / >
- Refractive Index: 1.4645
- Water Partition Coefficient: Insoluble
- Stability/Shelf Life: Stability Combustible. Stable. Incompatible with strong oxidizing agents, bases, reducing agents, alkali metals.
- PSA: 38.80000
- LogP: 7.17770
- Sensitiveness: Air sensitive
- Solubility: Insoluble in water
Octadecanethiol Security Information
-
Symbol:
- Prompt：warning
- Signal Word：Warning
- Hazard Statement： H315,H319,H335
- Warning Statement： P261,P305+P351+P338
- Hazardous Material transportation number：UN 1170 3/PG 2
- WGK Germany：3
- Hazard Category Code： 36/37/38
- Safety Instruction： S7-S16-S37/39-S26-S36
-
Hazardous Material Identification：
- TSCA：Yes
- Storage Condition：Inert atmosphere,Room Temperature
- Safety Term：S26;S37/39
- Packing Group：II; III
- Packing Group：II; III
- Risk Phrases：R36/37/38
Octadecanethiol Customs Data
- HS CODE：2905590090
- Customs Data：
China Customs Code:
2930909090Overview:
2930909090. Other organic sulfur compounds. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:30.0%
Declaration elements:
Product Name, component content, use to
Summary:
2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%
Octadecanethiol Pricemore >>
| Related Categories | No. | Product Name | Cas No. | Purity | Specification | Price | update time | Inquiry |
|---|---|---|---|---|---|---|---|---|
| TI XI AI ( SHANG HAI ) HUA CHENG GONG YE FA ZHAN Co., Ltd. | O0005-400G |
1-Octadecanethiol |
2885-00-9 | >97.0%(GC)(T) | 400g |
￥790.00 | 2024-04-15 | |
| TRC | O235305-250mg |
Octadecanethiol |
2885-00-9 | 250mg |
$ 50.00 | 2022-06-03 | ||
| TRC | O235305-500mg |
Octadecanethiol |
2885-00-9 | 500mg |
$ 65.00 | 2022-06-03 | ||
| TRC | O235305-2.5g |
Octadecanethiol |
2885-00-9 | 2.5g |
$ 80.00 | 2022-06-03 | ||
| SHANG HAI JI ZHI SHENG HUA Technology Co., Ltd. | O38500-100g |
Octadecane-1-thiol |
2885-00-9 | 97% | 100g |
￥153.0 | 2022-04-27 | |
| SHANG HAI YI EN HUA XUE JI SHU Co., Ltd. | R001999-100g |
Octadecanethiol |
2885-00-9 | 97% | 100g |
￥156 | 2024-05-24 | |
| SHANG HAI YI EN HUA XUE JI SHU Co., Ltd. | R001999-25g |
Octadecanethiol |
2885-00-9 | 97% | 25g |
￥45 | 2024-05-24 | |
| SHANG HAI YI EN HUA XUE JI SHU Co., Ltd. | R001999-500g |
Octadecanethiol |
2885-00-9 | 97% | 500g |
￥671 | 2024-05-24 | |
| SHANG HAI A LA DING SHENG HUA KE JI GU FEN Co., Ltd. | O107548-100g |
Octadecanethiol |
2885-00-9 | 97% | 100g |
￥171.90 | 2023-09-01 | |
| SHANG HAI A LA DING SHENG HUA KE JI GU FEN Co., Ltd. | O107548-2.5kg |
Octadecanethiol |
2885-00-9 | 97% | 2.5kg |
￥2519.90 | 2023-09-01 |
Octadecanethiol Suppliers
Jiangsu Xinsu New Materials Co., Ltd
Gold Member
Audited Supplier
(CAS:2885-00-9)
Order Number:SFD1589
Stock Status:
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Wednesday, 11 December 2024 17:03
Price ($):
Email:[email protected]
Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier
(CAS:2885-00-9)Octadecanethiol
Order Number:LE8510;LE1675047
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 11:59
Price ($):discuss personally
Email:[email protected]
Suzhou Senfeida Chemical Co., Ltd
Gold Member
Audited Supplier
(CAS:2885-00-9)Mercaptan
Order Number:sfd8301;1675047
Stock Status:in Stock
Quantity:200kg/Company Customization
Purity:99.9%/98%
Pricing Information Last Updated:Friday, 19 July 2024 14:34
Price ($):discuss personally
Email:[email protected]
Octadecanethiol Related Literature
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1. Ultra-thin particulate films prepared from capped and uncapped reverse-micelle-entrapped silver particlesFiona C. Meldrum,Nicholas A. Kotov,Janos H. Fendler J. Chem. Soc. Faraday Trans. 1995 91 673
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Samuel C. Perry,Sotirios Mavrikis,Moritz Wegener,Pāvels Nazarovs,Ling Wang,Carlos Ponce de León Faraday Discuss. 2021 230 375
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Hongyue Zhao,Jing Jin,Weijun Tian,Ran Li,Zhi Yu,Wei Song,Qian Cong,Bing Zhao,Yukihiro Ozaki J. Mater. Chem. A 2015 3 4330
-
Daxiong Wu,Ziya Yu,Wenjuan Wu,Linlin Fang,Haitao Zhu RSC Adv. 2014 4 53514
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Jared T. Wiemann,Zhiqiang Shen,Huilin Ye,Ying Li,Yan Yu Nanoscale 2020 12 20326
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