马来酸二乙酯

Name: 马来酸二乙酯
Brand: 济南圣和化工有限公司

CAS 141-05-9C8H12O4MW 172.18

济南圣和化工主营供应马来酸二乙酯（CAS 141-05-9），归类于有机化学品，分子式 C8H12O4，分子量 172.18。我们面向国内化工贸易与生产企业提供稳定的现货供应，报价响应快，支持对公转账并可开具增值税发票。

产品概览

CAS号	141-05-9
分子式	C8H12O4
分子量	172.18
熔点	1 - 2 °C
沸点	218.00 °C. @ 760.00 mm Hg
LogP	0.9
纯度	按批次COA提供(不公开发布)
包装	按订单/批次确认(不公开发布)
应用领域	有机化学品
类别	有机化学品

应用领域

有机化学品

该产品的下游应用集中在有机化学品。不同客户工艺差异较大，我们支持按需提供样品与小批量试用。

包装与储存

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

运输常规化工运输

样品可协商提供

交期现货/按订单安排

采购提示：本产品按按订单/批次确认(不公开发布)起订发货，收到货物后请先核对包装完好性再行入库。储存条件为阴凉干燥、密封保存；如需 MSDS 或运输说明，可在询价时一并索取。

质量与文件

每批产品随货提供 COA（分析证书）；可按需提供 MSDS/技术数据表及第三方检测报告。纯度与包装以批次 COA 及订单确认为准。

关于供应商

选择济南圣和化工有限公司的理由：产品信息透明（含 CAS、分子式、理化参数）、报价响应快（一个工作日内）、单证齐全（COA/MSS/质检资料按需提供）、支持批量与长期协议供货。如需马来酸二乙酯以外的配套原料，也欢迎一并列出需求清单。

常见问题

马来酸二乙酯的 CAS 号是多少？

马来酸二乙酯的 CAS 号为 141-05-9。

该产品的纯度和包装规格是什么？

常规纯度规格为按批次COA提供(不公开发布)，包装为按订单/批次确认(不公开发布)，随货提供 COA。

马来酸二乙酯有什么用途？

主要应用于有机化学品。

如何购买或获取报价？

请发送邮件至 info@591daili.com 或通过 WhatsApp 联系，注明产品名称、CAS 号与需求数量，一个工作日内回复报价。供应商：济南圣和化工有限公司。

PubChem 公开数据

Description

Diethyl maleate · CAS 141-05-9 · C8H12O4. UNII G81WQB56OL. Boiling Point: 218.00 °C. @ 760.00 mm Hg; Melting Point: 1 - 2 °C; Solubility: 1.40E+04 mg/L @ 30 °C (exp).

Identification

CAS Registry Number	141-05-9
PubChem CID	5271566
Molecular formula	C8H12O4
IUPAC name	diethyl (Z)-but-2-enedioate
UNII (FDA)	G81WQB56OL

Computed Descriptors

Molecular Weight	172.18
XLogP3	0.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	6
Exact Mass	172.07355886
Monoisotopic Mass	172.07355886
Topological Polar Surface Area	52.6
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Boiling Point	218.00 °C. @ 760.00 mm Hg
Melting Point	1 - 2 °C
Solubility	1.40E+04 mg/L @ 30 °C (exp)

Physical description & handling notes

Liquid
Water-white liquid; [Hawley] Colorless clear liquid; [MSDSonline]

Regulatory Status

Regulatory & Food Contact	EU Flavoring substances Flavoring Agents
GHS notification summary	1.8% (5 / 281)

GHS Hazard Classification

GHS notification summary	1.8% (5 / 281)
Reported hazard statements	H317 (97.5%), H319 (32%), H412 (24.6%), H227, H320, H402

This chemical does not meet GHS hazard criteria for 1.8% (5 of 281) of reports.

H317 (97.5%): May cause an allergic skin reaction [Warning Sensitization, Skin]

Documented Uses

Used in organic synthesis and as a flavoring agent; [Hawley]
Not Known or Reasonably Ascertainable
2-Butenedioic acid (2Z)-, diethyl ester; Ethyl maleate; Maleic acid, diethyl ester
IFRA 51st Amendment - Guidance for the use of IFRA Standards
Prohibition: This material should not be used as a fragrance ingredient
This material should not be used as a fragrance ingredient.

Synonyms

DIETHYL MALEATE; 141-05-9; Diethylmaleate; Maleic acid, diethyl ester; 2-Butenedioic acid (2Z)-, diethyl ester; Diethylester kyseliny maleinove; DTXSID8020464; G81WQB56OL; STAFLEX DEM; NSC-8394; DTXCID80464; CHEBI:68508; RefChem:133422; diethyl maleic acid diester; 205-451-9; Maleic acid diethyl ester

Frequently Asked Questions

What are the CAS number and molecular formula of Diethyl maleate?

CAS 141-05-9; molecular formula C8H12O4; molecular weight — g/mol.

What other names is Diethyl maleate known by?

DIETHYL MALEATE, 141-05-9, Diethylmaleate, Maleic acid, diethyl ester, 2-Butenedioic acid (2Z)-, diethyl ester, Diethylester kyseliny maleinove.

What is the regulatory status of Diethyl maleate?

Documented regulatory listings: EU Flavoring substances; Flavoring Agents.

Is Diethyl maleate classified as hazardous?

1.8% of GHS notifications report no hazard classification (5 of 281).

What are the key physical properties of Diethyl maleate?

Boiling Point: 218.00 °C. @ 760.00 mm Hg; Melting Point: 1 - 2 °C; Solubility: 1.40E+04 mg/L @ 30 °C (exp).

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.