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ChemicalBook >> CAS DataBase List >> n-Octadecyltrichlorosilane

n-Octadecyltrichlorosilane

n-Octadecyltrichlorosilane price.
  • $45 - $1620
  • Product name: n-Octadecyltrichlorosilane
  • CAS: 112-04-9
  • MF: C18H37Cl3Si
  • MW: 387.93
  • EINECS:203-930-7
  • MDL Number:MFCD00000484
  • Synonyms:Octadecyltrichlorosilane, 5 - 10% branched isoMers;CO9750;Silane, octadecyltrichloro-;trichlorooctadecyl-silan;Trichloro(octadecyl)silane >=90%;STEARYLTRICHLOROSILANE;TRICHLOROSTEARYLSILANE;OCTADECYLTRICHLOROSILANE, 90+%
Price25 Properties Safety Information Description
25 prices
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Brand
  • AHH
  • AK Scientific
  • Biosynth
  • Chem-Impex
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
Package
  • 250mg
  • 500mg
  • 1G
  • 2.5g
  • 25g
  • 50g
  • 100ml
  • 100g
  • 250g
  • 500g
  • 1000g
  • 25 mL
  • 100 mL
  • 500 mL
  • ManufacturerAHH
  • Product numberMT-20346
  • Product descriptionN-Octadecyl trichlorosilane 97%
  • Packaging250g
  • Price$478
  • Updated2026-05-26
  • Buy
  • ManufacturerAK Scientific
  • Product number8903AC
  • Product descriptionn-Octadecyltrichlorosilane
  • Packaging25g
  • Price$78
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFT62929
  • Product descriptionTrichlorooctadecylsilane
  • Packaging100g
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT62929
  • Product descriptionTrichlorooctadecylsilane
  • Packaging25g
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT62929
  • Product descriptionTrichlorooctadecylsilane
  • Packaging50g
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT62929
  • Product descriptionTrichlorooctadecylsilane
  • Packaging250g
  • Price$972.5
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT62929
  • Product descriptionTrichlorooctadecylsilane
  • Packaging500g
  • Price$1620
  • Updated2026-06-04
  • Buy
  • ManufacturerChem-Impex
  • Product number40427
  • Product descriptionTrichlorooctadecylsilane ≥99%(GC)
  • Packaging1G
  • Price$294.24
  • Updated2026-05-19
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number104817
  • Product descriptionTrichloro(octadecyl)silane ≥90%
  • Packaging25g
  • Price$160
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number104817
  • Product descriptionTrichloro(octadecyl)silane ≥90%
  • Packaging500g
  • Price$1280
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.22170
  • Product descriptionTrichlorooctadecylsilane for synthesis
  • Packaging100ml
  • Price$139
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number104817
  • Product descriptionTrichloro(octadecyl)silane ≥90%
  • Packaging100g
  • Price$459
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberO0079
  • Product descriptionTrichlorooctadecylsilane >85.0%(GC)
  • Packaging25g
  • Price$70
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberT3815
  • Product descriptionTrichlorooctadecylsilane (>99.0%)
  • Packaging1G
  • Price$183
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberO0079
  • Product descriptionTrichlorooctadecylsilane >85.0%(GC)
  • Packaging100g
  • Price$359
  • Updated2021-12-16
  • Buy
  • ManufacturerThermo Scientific Chemicals
  • Product numberA15732
  • Product descriptionn-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers
  • Packaging1000g
  • Price$452.65
  • Updated2026-04-24
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-20346 N-Octadecyl trichlorosilane 97% 250g $478 2026-05-26 Buy
AK Scientific 8903AC n-Octadecyltrichlorosilane 25g $78 2021-12-16 Buy
Biosynth FT62929 Trichlorooctadecylsilane 100g $900 2026-06-04 Buy
Biosynth FT62929 Trichlorooctadecylsilane 25g $900 2026-06-04 Buy
Biosynth FT62929 Trichlorooctadecylsilane 50g $900 2026-06-04 Buy
Biosynth FT62929 Trichlorooctadecylsilane 250g $972.5 2026-06-04 Buy
Biosynth FT62929 Trichlorooctadecylsilane 500g $1620 2026-06-04 Buy
Chem-Impex 40427 Trichlorooctadecylsilane ≥99%(GC) 1G $294.24 2026-05-19 Buy
Sigma-Aldrich 104817 Trichloro(octadecyl)silane ≥90% 25g $160 2026-04-30 Buy
Sigma-Aldrich 104817 Trichloro(octadecyl)silane ≥90% 500g $1280 2026-04-30 Buy
Sigma-Aldrich 8.22170 Trichlorooctadecylsilane for synthesis 100ml $139 2026-04-30 Buy
Sigma-Aldrich 104817 Trichloro(octadecyl)silane ≥90% 100g $459 2026-04-30 Buy
TCI Chemical O0079 Trichlorooctadecylsilane >85.0%(GC) 25g $70 2026-04-30 Buy
TCI Chemical T3815 Trichlorooctadecylsilane (>99.0%) 1G $183 2026-04-30 Buy
TCI Chemical O0079 Trichlorooctadecylsilane >85.0%(GC) 100g $359 2021-12-16 Buy
Thermo Scientific Chemicals A15732 n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers 1000g $452.65 2026-04-24 Buy
Next Last

Properties

Melting point :22°C
Boiling point :223 °C10 mm Hg(lit.)
Density :0.984 g/mL at 25 °C(lit.)
vapor density :>1 (vs air)
vapor pressure :<5 mm Hg ( 20 °C)
refractive index :n20/D 1.459(lit.)
Flash point :193 °F
storage temp. :Store below +30°C.
solubility :Chloroform (Sparingly), Dichloromethane (Slightly)
form :A liquid
Specific Gravity :0.984
color :White or Colorless to Light yellow
Water Solubility :Decomposes in water.
Sensitive :Moisture Sensitive
Hydrolytic Sensitivity :8: reacts rapidly with moisture, water, protic solvents
BRN :1778847
Stability :Stable. Reacts violently with water. Incompatible with strong acids, strong bases, strong oxidizing agents. Air-sensitive. Combustible.
InChI :1S/C18H37Cl3Si/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22(19,20)21/h2-18H2,1H3
InChIKey :PYJJCSYBSYXGQQ-UHFFFAOYSA-N
SMILES :CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl
LogP :6
CAS DataBase Reference :112-04-9(CAS DataBase Reference)
NIST Chemistry Reference :Silane, trichlorooctadecyl-(112-04-9)
EPA Substance Registry System :Silane, trichlorooctadecyl- (112-04-9)

Safety Information

Symbol(GHS): Corrosion (GHS05)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:
P234 Keep only in original container.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P363 Wash contaminated clothing before reuse.
P390 Absorb spillage to prevent material damage.
P405 Store locked up.
P406 Store in corrosive resistant/… container with a resistant inner liner.
P501 Dispose of contents/container to..…

Description

n-Octadecyltrichlorosilane is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Used in molecular electronics, as thin insulating gates in Metal-Insulator-Semiconductor Field-Effect Transistors. It is also used in platinum catalyzed synthesis.

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Suppliers and manufacturers

Shanghai Gileader Advanced Material Technology Co.,Ltd Suzhou Siso new material Co.,Ltd. Meryer (Shanghai) Chemical Technology Co., Ltd. Alfa Aesar TCI (Shanghai) Development Co., Ltd. Energy Chemical Wuhan Chemwish Technology Co., Ltd Shanghai Sinch Parmaceuticals Tech. Co. Ltd. Shanghai Hanhong Scientific Co.,Ltd. Shandong Xiya Chemical Co., Ltd