n-Octadecyldimethylmethoxysilane (CAS 71808-65-6) — formula C21H46OSi, molecular weight 342.7; category organic chemicals.
n-Octadecyldimethylmethoxysilane (CAS 71808-65-6) is a chemical raw material in the organic chemicals category. Its molecular formula C21H46OSi comprises 21 C, 46 H, 1 O, 1 Si atoms. Its molecular weight is about 342.7. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 71808-65-6 |
|---|---|
| Molecular Formula | C21H46OSi |
| Molecular Weight | 342.7 |
| Applications | Silane, methoxydimethyloctadecyl-: ACTIVE |
| Category | Organic Chemicals |
Documented applications: Silane, methoxydimethyloctadecyl-: ACTIVE.
n-Octadecyldimethylmethoxysilane is a carbon-based organic compound with CAS registry number 71808-65-6 and molecular formula C21H46OSi (molecular weight 342.7), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 71808-65-6
Its molecular formula C21H46OSi comprises 21 C, 46 H, 1 O, 1 Si atoms.
Also known as: n-Octadecyldimethylmethoxysilane · 正十八烷基二甲基甲氧基硅烷
Category: organic chemicals
The CAS registry number of n-Octadecyldimethylmethoxysilane is 71808-65-6.
Molecular formula C21H46OSi, molecular weight 342.7.
It is also registered under: n-Octadecyldimethylmethoxysilane, 正十八烷基二甲基甲氧基硅烷.
Recorded applications: Silane, methoxydimethyloctadecyl-: ACTIVE.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for n-Octadecyldimethylmethoxysilane (CAS 71808-65-6), compiled from public chemistry databases.
| CAS Registry Number | 71808-65-6 |
|---|---|
| PubChem CID | 172903 |
| Molecular formula | C21H46OSi |
| IUPAC name | methoxy-dimethyl-octadecylsilane |
| UNII (FDA) | KU9CCV3QLK |
| Molecular Weight | 342.7 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 18 |
| Exact Mass | 342.331792621 |
| Monoisotopic Mass | 342.331792621 |
| Topological Polar Surface Area | 9.2 |
| Heavy Atom Count | 23 |
71808-65-6; Silane, methoxydimethyloctadecyl-; Octadecyldimethylmethoxysilane; EINECS 276-039-4; DTXSID6072429; RefChem:182887; DTXCID4047125; methoxy-dimethyl-octadecylsilane; methoxydimethyl(octadecyl)silane; N-OCTADECYLDIMETHYLMETHOXYSILANE; Methoxydimethyloctadecylsilane; Methoxy(dimethyl)octadecylsilane; Silane,methoxydimethyloctadecyl-; C21H46OSi; MFCD00042920; n-Octadecyl Dimethyl Methoxysilane
| Reported hazard statements | H315 (100%), H319 (100%), H335 (97.6%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
n-Octadecyldimethylmethoxysilane · CAS 71808-65-6 · C21H46OSi. UNII KU9CCV3QLK.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 正十八烷基二甲基甲氧基硅烷