3,5-二甲氧基松西林，CAS 登记号 21956-56-9，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 3,5-二甲氧基松西林 的 CAS 号：21956-56-9，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。
3,5-Dimethoxypinosylvin · CAS 21956-56-9 · C16H16O2. UNII DWA4D52V24.
| CAS Registry Number | 21956-56-9 |
|---|---|
| PubChem CID | 5316874 |
| Molecular formula | C16H16O2 |
| IUPAC name | 1,3-dimethoxy-5-[(E)-2-phenylethenyl]benzene |
| UNII (FDA) | DWA4D52V24 |
| Molecular Weight | 240.30 |
|---|---|
| XLogP3 | 4.1 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 4 |
| Exact Mass | 240.115029749 |
| Monoisotopic Mass | 240.115029749 |
| Topological Polar Surface Area | 18.5 |
| Heavy Atom Count | 18 |
| Formal Charge | 0 |
| Reported hazard statements | H318 (100%) |
|---|
H318 (100%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
P264+P265, P280, P305+P354+P338, and P317 (click each P-code to see the statement)
3,5-Dimethoxystilbene; RefChem:414507; 21956-56-9; Trans-3,5-Dimethoxystilbene; 78916-49-1; 1,3-Dimethoxy-5-styrylbenzene; Pinosylvin dimethyl ether; (e)-3,5-dimethoxystilbene; 3,5-dimethoxy-trans-stilbene; trans-Pinosylvin dimethyl ether; 1,3-dimethoxy-5-[(E)-2-phenylethenyl]benzene; (E)-1,3-dimethoxy-5-styrylbenzene; Pinosylvin, dimethyl ether; 1,3-dimethoxy-5-[(1E)-2-phenylethenyl]benzene; Benzene, 1,3-dimethoxy-5-[(1E)-2-phenylethenyl]-; (E)-1-(3,5-Dimethoxyphenyl)-2-phenylethene
CAS 21956-56-9; molecular formula C16H16O2; molecular weight — g/mol.
3,5-Dimethoxystilbene, RefChem:414507, 21956-56-9, Trans-3,5-Dimethoxystilbene, 78916-49-1, 1,3-Dimethoxy-5-styrylbenzene.
Hazard statements reported: H318.
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.