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· · COA & SDS available for every product · Same-day shipping on in-stock items Dimethyloctadecylchlorosilane - ≥97%(T) , CAS No.18643-08-8
Synonyms
Silane, chlorodimethyloctadecyl- | Chlorodimethylctadecylsilane | chloro-dimethyl-ctadecyl-silane | C20H43ClSi | Chlorodimethyloctadecylsilane | Chloro-dimethyl-octadecylsilane | CD5636 | Dimethyl-n-octadecylchlorosilane | Ctadecyldimethylchlorosilane, 70
Storage
Room temperature,Argon charged
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Why this grade ≥97%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.
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Quality documents SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof Cited in 7 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Specifications Synonyms
Silane, chlorodimethyloctadecyl- | Chlorodimethylctadecylsilane | chloro-dimethyl-ctadecyl-silane | C20H43ClSi | Chlorodimethyloctadecylsilane | Chloro-dimethyl-octadecylsilane | CD5636 | Dimethyl-n-octadecylchlorosilane | Ctadecyldimethylchlorosilane, 70
Specifications & Purity
≥97%(T)
Storage
Room temperature,Argon charged
Names and Identifiers Pubchem Sid 528769703 Pubchem Sid Url https://pubchem.ncbi.nlm.nih.gov/substance/528769703 Canonical Smiles CCCCCCCCCCCCCCCCCC[Si](C)(C)Cl IUPAC Name chloro-dimethyl-octadecylsilane InChIKey GZGREZWGCWVAEE-UHFFFAOYSA-N INCHI 1S/C20H43ClSi/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-22(2,3)21/h4-20H2,1-3H3 Isomeric SMILES CCCCCCCCCCCCCCCCCC[Si](C)(C)Cl WGK Germany 1 UN Number 2987 Packing Group II Molecular Weight 347.10 Beilstein 2246010 Reaxy-Rn 2246012 Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2246012&ln=
Documentation 📋 Safety Data Sheet (SDS) Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS → ✅ Certificate of Analysis (COA) Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA → 📊 Datasheet Quick-reference summary of product specifications and applications.
View datasheet → 🔬 Specification Sheet Full quality attributes and acceptance criteria for this grade.
View spec sheet →
Advanced Data Taxonomic Classification Kingdom Organic compounds Superclass Organometallic compounds Class Organometalloid compounds Subclass Organosilicon compounds Intermediate Tree Nodes Organoheterosilanes - Trialkylheterosilanes Direct Parent Trialkylchlorosilanes Alternative Parents Silyl monohalides Organochlorosilanes Organic metalloid salts Alkylhalosilanes Hydrocarbon derivatives Molecular Framework Aliphatic acyclic compounds Substituents Trialkylchlorosilane - Silyl monohalide - Organochlorosilane - Organic metalloid salt - Alkylhalosilane - Hydrocarbon derivative - Organic salt - Aliphatic acyclic compound Description This compound belongs to the class of organic compounds known as trialkylchlorosilanes. These are organoheterosilanes, bearing a silicon atom linked to three alkyl groups and one chlorine atom. 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.
3D Structure Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Sensitivity Moisture sensitive. Flash Point(°F) 392 °F Flash Point(°C) 201°C(lit.) Melt Point(°C) 29 °C Molecular Weight 347.100 g/mol XLogP3 Hydrogen Bond Donor Count 0 Hydrogen Bond Acceptor Count 0 Rotatable Bond Count 17 Exact Mass 346.282 Da Monoisotopic Mass 346.282 Da Topological Polar Surface Area 0.000 Ų Heavy Atom Count 22 Formal Charge 0 Complexity 216.000 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
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