δ-戊内酯，CAS 登记号 542-28-9，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 δ-戊内酯 的 CAS 号：542-28-9，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。
Delta-Valerolactone · CAS 542-28-9 · C5H8O2. UNII 14V1X9149L. LogP: -0.35.
| CAS Registry Number | 542-28-9 |
|---|---|
| PubChem CID | 10953 |
| Molecular formula | C5H8O2 |
| IUPAC name | oxan-2-one |
| UNII (FDA) | 14V1X9149L |
| Molecular Weight | 100.12 |
|---|---|
| XLogP3 | -0.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 100.052429494 |
| Monoisotopic Mass | 100.052429494 |
| Topological Polar Surface Area | 26.3 |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| LogP | -0.35 |
|---|
| Regulatory & Food Contact | EU Flavoring substances Flavoring Agents |
|---|
| Reported hazard statements | H318 (99.4%) |
|---|
H318 (99.4%): 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)
delta-Valerolactone; 542-28-9; TETRAHYDRO-2H-PYRAN-2-ONE; 5-Valerolactone; 2H-Pyran-2-one, tetrahydro-; DTXSID6044438; NSC-6247; 14V1X9149L; DTXCID4024438; CHEBI:16545; RefChem:585696; 208-807-1; oxan-2-one; tetrahydropyran-2-one; Tetrahydro-2-pyranone; delta-Valeryllactone
CAS 542-28-9; molecular formula C5H8O2; molecular weight — g/mol.
delta-Valerolactone, 542-28-9, TETRAHYDRO-2H-PYRAN-2-ONE, 5-Valerolactone, 2H-Pyran-2-one, tetrahydro-, DTXSID6044438.
Documented regulatory listings: EU Flavoring substances; Flavoring Agents.
Hazard statements reported: H318.
LogP: -0.35.
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.