Isobutyl(trimethoxy)silane - ≥97% , CAS No.18395-30-7

CAS: 18395-30-7 Cat. No.: I168096 Formula: C₇H₁₈O₃Si Molecular Weight: 178.30 EC Number: 242-272-5

GRADE & PURITY ≥97%

Synonyms

A812827 | EINECS 242-272-5 | FS-3829 | 2-methyl-1-propyltrimethoxysilane | D94753 | FT-0604982 | J-011785 | Isobutyltrimethoxysilane(98%) | Dynasylan IBTMO | isobutyltrimethoxy silane | Isobutyltrimethoxysilane | AKOS016011186 | BTMOS cpd | DTXSID1066366

Storage

Room temperature

Shipped In

Normal

Overview

Isobutyl(trimethoxy)silane-modified substrates were used for the preparation of gold films by absorption and adsorption.{87} It may be used as silane precursors for the synthesis of xerogels.

Specifications

Synonyms

A812827 | EINECS 242-272-5 | FS-3829 | 2-methyl-1-propyltrimethoxysilane | D94753 | FT-0604982 | J-011785 | Isobutyltrimethoxysilane(98%) | Dynasylan IBTMO | isobutyltrimethoxy silane | Isobutyltrimethoxysilane | AKOS016011186 | BTMOS cpd | DTXSID1066366

Specifications & Purity

≥97%

Storage

Room temperature

Shipped In

Normal

Purity

≥97%

Names and Identifiers

• Pubchem Sid: 504755893
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/504755893
• Canonical Smiles: CC(C)C[Si](OC)(OC)OC
• IUPAC Name: trimethoxy(2-methylpropyl)silane
• InChIKey: XYJRNCYWTVGEEG-UHFFFAOYSA-N
• INCHI: 1S/C7H18O3Si/c1-7(2)6-11(8-3,9-4)10-5/h7H,6H2,1-5H3
• Isomeric SMILES: CC(C)C[Si](OC)(OC)OC
• WGK Germany: 1
• Molecular Weight: 178.30
• Reaxy-Rn: 2233976
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2233976&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organometallic compounds
    • Class Organometalloid compounds
      • Subclass Organosilicon compounds
        • Level5 Alkoxysilanes
          • Level6 Trialkoxysilanes

• Kingdom: Organic compounds
• Superclass: Organometallic compounds
• Class: Organometalloid compounds
• Subclass: Organosilicon compounds
• Intermediate Tree Nodes: Alkoxysilanes
• Direct Parent: Trialkoxysilanes
• Alternative Parents: Silyl ethers Organoheterosilanes Organic metalloid salts Organooxygen compounds Hydrocarbon derivatives
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: Trialkoxysilane - Silyl ether - Organoheterosilane - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Organooxygen compound - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as trialkoxysilanes. These are organosilicon compounds with the general formula RO[Si](R')(OR'')OR''' (R-R''' = aliphatic organyl group).
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Refractive Index: 1.396
• Flash Point(°F): 109°F
• Flash Point(°C): 43℃
• Boil Point(°C): 154-157°C
• Molecular Weight: 178.300 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 5
• Exact Mass: 178.103 Da
• Monoisotopic Mass: 178.103 Da
• Topological Polar Surface Area: 27.700 Ų
• Heavy Atom Count: 11
• Formal Charge: 0
• Complexity: 93.600
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

XLogP3

References

1. Tingting Wang, Fangning Liu, Chuanxia Chen, Yizhong Lu.  (2024)  Fluorometric “AND” logic gate for detection of tyramine and tyrosinase based on in-situ formation of silicon-containing nanoparticles.  ANALYTICA CHIMICA ACTA,      [PMID:38462342] [10.1016/j.aca.2024.342415]

2. Xiushang Du, Zhenjie Zhao, Xuhang Zhang, Jingyi Zhu, Yingdan Liu.  (2025)  Magneto-Responsive Networks Filled with Polydopamine and Silane Coupling Agent Dual-Modified Carbonyl Iron Particles for Soft Actuators.  Polymers,  17  (16): (2228).  [PMID:40871176] [10.3390/polym17162228]

3. Minyue Shen, Lin Qi, Li Zhang, Panfei Ma, Wei Liu, To Ngai, Hang Jiang.  (2025)  Dual-Responsive Hybrid Microgels Enabling Phase Inversion in Pickering Emulsions.  Polymers,  17  (20): (2762).  [PMID:41150304] [10.3390/polym17202762]

Frequently Asked Questions

What is the purity of this product?

This product is supplied at ≥97% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.

How should this product be stored?

Store at room temperature.

How is this product shipped?

This product ships under standard ambient conditions. No temperature-controlled packaging is required.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 18395-30-7, the molecular formula is C7H18O3Si, and the molecular weight is 178.30 g/mol. InChIKey XYJRNCYWTVGEEG-UHFFFAOYSA-N.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.