氯二甲基十八烷基硅烷，CAS 登记号 18643-08-8，由济南圣和化工有限公司现货供应，可提供纯度 按批次COA提供(不公开发布) 的规格，下游主要用于有机化学品。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。
有机化学品
每批随货提供 COA；可按需提供 MSDS 及技术文件。邮件注明产品名称与 CAS 号，一个工作日内回复报价。
本页已列出 氯二甲基十八烷基硅烷 的 CAS 号：18643-08-8，可与随货 COA 核对。
常见纯度为 按批次COA提供(不公开发布)，包装形式为 按订单/批次确认(不公开发布)，特殊规格可在询价时说明。
主要涉及有机化学品。
来信 info@591daili.com 或 WhatsApp 联系，提供产品名称、CAS 号与数量，确认价格与交期后即可安排发货，验收以批次 COA 为准。
chlorodimethyloctadecylsilane · CAS 18643-08-8 · C20H43ClSi. UNII LH5E2W2ASN.
| CAS Registry Number | 18643-08-8 |
|---|---|
| PubChem CID | 87738 |
| Molecular formula | C20H43ClSi |
| IUPAC name | chloro-dimethyl-octadecylsilane |
| UNII (FDA) | LH5E2W2ASN |
| Molecular Weight | 347.1 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 17 |
| Exact Mass | 346.2822556 |
| Monoisotopic Mass | 346.2822556 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 22 |
| Formal Charge | 0 |
| Complexity | 216 |
| GHS notification summary | 6.9% (4 / 58) |
|---|
| GHS notification summary | 6.9% (4 / 58) |
|---|---|
| Reported hazard statements | H314 (93.1%), H318 (10.3%) |
This chemical does not meet GHS hazard criteria for 6.9% (4 of 58) of reports.
H314 (93.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Chlorodimethyloctadecylsilane; 18643-08-8; Octadecyldimethylchlorosilane; Silane, chlorodimethyloctadecyl-; LH5E2W2ASN; DTXSID3066394; RefChem:167714; DTXCID8035891; 242-472-2; Dimethyloctadecylchlorosilane; chlorodimethyl(octadecyl)silane; Chloro-dimethyl-octadecylsilane; n-Octadecyldimethylchlorosilane; Chloro(dimethyl)octadecylsilane; C20H43ClSi; MFCD00000504
CAS 18643-08-8; molecular formula C20H43ClSi; molecular weight — g/mol.
Chlorodimethyloctadecylsilane, 18643-08-8, Octadecyldimethylchlorosilane, Silane, chlorodimethyloctadecyl-, LH5E2W2ASN, DTXSID3066394.
6.9% of GHS notifications report no hazard classification (4 of 58).
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.