Trimethoxyoctadecylsilane (CED0028642)

Record Information

Version

1.0

Creation Date

2026-04-04 20:31:49 UTC

Update Date

2026-08-21 20:28:02 UTC

Accession Number

CHEM081379

Identification

Common Name

Trimethoxyoctadecylsilane

Class

Small Molecule

Description

Trimethoxyoctadecylsilane is a chemical compound with the formula C21H46O3Si and an average molecular weight of 374.68 g/mol. Trimethoxyoctadecylsilane belongs to the organosilicon compounds, a subclass of organometalloid compounds within the organic compounds. This substance has been identified in or released from seven recorded sources. Within the category of electrical and electronic equipment, it is associated with antennas, cores yokes or armatures, microphones, power cables, and radio transmission systems. Additionally, it is found in building and construction materials, specifically in sunshades awnings or outside screens.

Contaminant Type

Not Available

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Not Available

Chemical Formula

C₂₁H₄₆O₃Si

Average Molecular Mass

374.681 g/mol

Monoisotopic Mass

374.322 g/mol

CAS Registry Number

3069-42-9

IUPAC Name

Not Available

Traditional Name

Not Available

SMILES

CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC

InChI Identifier

InChI=1/C21H46O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25(22-2,23-3)24-4/h5-21H2,1-4H3

InChI Key

SLYCYWCVSGPDFR-UHFFFAOYSA-N

Chemical Taxonomy

Classification

Not classified

Biological Properties

Status

Detected and Not Quantified

Origin

Not Available

Cellular Locations

Not Available

Biofluid Locations

Not Available

Tissue Locations

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Organoleptic Effects

Not Available

Physical Properties

State

Not Available

Appearance

Not Available

Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Not Available

Spectra

Not Available

Toxicity Profile

Mechanism of Toxicity

Not Available

Carcinogenicity (IARC Classification)

Not Available

Minimum Risk Level

Not Available

Symptoms

Not Available

Treatment

Not Available

Toxicity Values

Toxicity Value	Unit	Value Range	Organism	Dose Descriptor	Route of Exposure	Predicted or Experimental	Reference
6153.0	Log mg/kg	[3500:11000]	Rat	LD50	oral	predicted	Not Available

Health Effects

Health Effect	Relationship	Direction	Reference

Exposure Sources

Source ID	Source	Sector	Reference
501	Sunshades Awnings Or Outside Screens	Building & Construction	Not Available
502	Sunshades Awnings Or Outside Screens	Building & Construction	Not Available
506	Antennas	Electrical & Electronic Equipment	Not Available
513	Cores Yokes Or Armatures	Electrical & Electronic Equipment	Not Available
528	Microphones	Electrical & Electronic Equipment	Not Available
529	Power Cables	Electrical & Electronic Equipment	Not Available
530	Radio Transmission Systems	Electrical & Electronic Equipment	Not Available
581	Paper Making Machines	Industrial manufacturing & chemical processing	Not Available
630	Toys	Recreation & sports surfaces	Not Available
638	Decorating Textiles	Textiles, leather & furnishings	Not Available
643	Headwear	Textiles, leather & furnishings	Not Available
652	Ropes	Textiles, leather & furnishings	Not Available
657	Surface Finishing Of Leather	Textiles, leather & furnishings	Not Available

Pathways

0 pathways

No pathways found

No metabolic pathways have been associated with this synthetic chemical

Targets

Structure	Protein	UniProt ID	Organism	Relationship	Details
Click to view 3D structure	Phospholipase B	Q9P8P2	Cryptococcus neoformans	Predicted (SEA)	0.389246
Click to view 3D structure	All-trans-retinol dehydrogenase [NAD(+)] ADH7	P40394	Humans	Predicted (SEA)	4.20386
Click to view 3D structure	Peroxisome proliferator-activated receptor alpha	Q07869	Humans	Predicted (SEA)	217.822
Click to view 3D structure	Transient receptor potential cation channel subfamily V member 2	Q9WUD2	Rattus norvegicus	Predicted (SEA)	25.4567
Click to view 3D structure	Tyrosine-protein phosphatase non-receptor type 1	P18031	Humans	Predicted (SEA)	180.922
Click to view 3D structure	G-protein coupled receptor 84	Q9NQS5	Humans	Predicted (SEA)	14.0129
Click to view 3D structure	Sodium- and chloride-dependent creatine transporter 1	P28570	Rattus norvegicus	Predicted (SEA)	1.47914
Click to view 3D structure	Peroxisome proliferator-activated receptor delta	Q03181	Humans	Predicted (SEA)	206.845
Click to view 3D structure	Lysophosphatidic acid receptor 2	Q9HBW0	Humans	Predicted (SEA)	16.1926
Click to view 3D structure	Lysophosphatidic acid receptor 3	Q9UBY5	Humans	Predicted (SEA)	22.9655
Click to view 3D structure	Cannabinoid receptor 1	P20272	Rattus norvegicus	Predicted (SEA)	104.941
Click to view 3D structure	Fatty-acid amide hydrolase 1	O08914	Mus musculus	Predicted (SEA)	125.804
Click to view 3D structure	Fatty-acid amide hydrolase 1	P97612	Rattus norvegicus	Predicted (SEA)	321.439
Click to view 3D structure	Fatty-acid amide hydrolase 1	O00519	Humans	Predicted (SEA)	477.527
Click to view 3D structure	Polyunsaturated fatty acid 5-lipoxygenase	P09917	Humans	Predicted (SEA)	387.689
Click to view 3D structure	Carnitine palmitoyltransferase 1A	Q9MYX2	Sus scrofa	Predicted (SEA)	6.22794
Click to view 3D structure	CAI-1 autoinducer sensor kinase/phosphatase CqsS	Q9KM66	Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)	Predicted (SEA)	13.7793
Click to view 3D structure	Sarcoplasmic/endoplasmic reticulum calcium ATPase 3	Q64518	Mus musculus	Predicted (SEA)	37.679
Click to view 3D structure	Cocaine esterase	O00748	Humans	Predicted (SEA)	39.0025
Click to view 3D structure	Geranylgeranyl pyrophosphate synthase	O95749	Humans	Predicted (SEA)	10.1204
Click to view 3D structure	Farnesyl pyrophosphate synthase	Q0GKD7	Leishmania donovani	Predicted (SEA)	9.34191
Click to view 3D structure	Peroxisome proliferator-activated receptor gamma	P37231	Humans	Predicted (SEA)	929.831
Click to view 3D structure	Cannabinoid receptor 1	P21554	Humans	Predicted (SEA)	901.65
Click to view 3D structure	Acylcarnitine hydrolase	Q91WG0	Mus musculus	Predicted (SEA)	6.77288
Click to view 3D structure	UDP-3-O-acyl-N-acetylglucosamine deacetylase	O67648	Aquifex aeolicus (strain VF5)	Predicted (SEA)	125.026