三硅氧烷，三甲基五苯基-，CAS 登记号 28855-11-0，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。
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Trisiloxane,trimethylpentaphenyl- · CAS 28855-11-0 · C33H34O2Si3. UNII HE7ABK56N5.
| CAS Registry Number | 28855-11-0 |
|---|---|
| PubChem CID | 76925 |
| Molecular formula | C33H34O2Si3 |
| IUPAC name | methyl-bis[[methyl(diphenyl)silyl]oxy]-phenylsilane |
| UNII (FDA) | HE7ABK56N5 |
| Molecular Weight | 546.9 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 9 |
| Exact Mass | 546.18665993 |
| Monoisotopic Mass | 546.18665993 |
| Topological Polar Surface Area | 18.5 |
| Heavy Atom Count | 38 |
| Formal Charge | 0 |
| Complexity | 615 |
| GHS notification summary | 44.1% (30 / 68) |
|---|
| GHS notification summary | 44.1% (30 / 68) |
|---|---|
| Reported hazard statements | H319 (55.9%) |
This chemical does not meet GHS hazard criteria for 44.1% (30 of 68) of reports.
H319 (55.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
3390-61-2; 1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane; Trimethyl pentaphenyl trisiloxane; Dow Corning 555; Dow Corning 705; Pentaphenyltrimethyltrisiloxane; 28855-11-0; Trisiloxane, 1,3,5-trimethyl-1,1,3,5,5-pentaphenyl-; EINECS 222-222-9; HE7ABK56N5; DTXSID7063007; TRIMETHYLPENTAPHENYL TRISOLOXANE; RefChem:899749; DTXCID4038762; Dow Corning 705 silicone diffusion pump; TRIMETHYL PENTAPHENYL TRISILOXANE [INCI]
CAS 28855-11-0; molecular formula C33H34O2Si3; molecular weight — g/mol.
3390-61-2, 1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane, Trimethyl pentaphenyl trisiloxane, Dow Corning 555, Dow Corning 705, Pentaphenyltrimethyltrisiloxane.
44.1% of GHS notifications report no hazard classification (30 of 68).
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.