3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮

Name: 3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮
Brand: 济南圣和化工有限公司

CAS 11070-44-3C9H10O3MW 166.17

济南圣和化工主营供应 3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮（CAS 11070-44-3），归类于有机化学品，分子式 C9H10O3，分子量 166.17。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	11070-44-3
分子式	C9H10O3
分子量	166.17
LogP	1.4
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 3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮以外的配套原料，也欢迎一并列出需求清单。

常见问题

3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮的 CAS 号是多少？

3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮的 CAS 号为 11070-44-3。

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。

3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮有什么用途？

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

3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione · CAS 11070-44-3 · C9H10O3. UNII NS00003849. Vapor Pressure: 0.003 [mmHg].

Identification

CAS Registry Number	11070-44-3
PubChem CID	3033842
Molecular formula	C9H10O3
IUPAC name	3a-methyl-5,6-dihydro-4H-2-benzofuran-1,3-dione
UNII (FDA)	NS00003849

Computed Descriptors

Molecular Weight	166.17
XLogP3	1.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	166.062994177
Monoisotopic Mass	166.062994177
Topological Polar Surface Area	43.4
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Vapor Pressure	0.003 [mmHg]

Physical description & handling notes

Liquid

GHS Hazard Classification

Reported hazard statements	H317, H318, H334, H302 (20.2%), H312, H315, H319, H335

H317: May cause an allergic skin reaction [Warning Sensitization, Skin]

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

Documented Uses

Used mainly as a hardener for epoxy resins; [eChemPortal: SIDSUNEP]
Plastic Composites Manufacturing [Category: Industry]
Not Known or Reasonably Ascertainable
Surfactant (surface active agent)
Electrical Equipment, Appliance, and Component Manufacturing
Plastics Material and Resin Manufacturing

Synonyms

Tetrahydromethyl-1,3-isobenzofurandione; 1,3-Isobenzofurandione, tetrahydromethyl-; Tetrahydromethylphthalic anhydride; EINECS 234-290-7; EC 234-290-7; RefChem:897184; Tetrahydromethyl1,3isobenzofuranedione; 1,3Isobenzofurandione, tetrahydromethyl; 234-290-7; 3a-methyl-5,6-dihydro-4H-2-benzofuran-1,3-dione; 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione; METHYLCYCLOHEXENE-1,2-DICARBOXYLICANHYDRIDE; 75910-60-0; Methyltetrahydrophthalic anhydride (MTHPA); DSSTox_CID_7729; DSSTox_RID_78551

Frequently Asked Questions

What are the CAS number and molecular formula of 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione?

CAS 11070-44-3; molecular formula C9H10O3; molecular weight — g/mol.

What other names is 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione known by?

Tetrahydromethyl-1,3-isobenzofurandione, 1,3-Isobenzofurandione, tetrahydromethyl-, Tetrahydromethylphthalic anhydride, EINECS 234-290-7, EC 234-290-7, RefChem:897184.

Is 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione classified as hazardous?

Hazard statements reported: H317, H318, H334, H302, H312.

What are the key physical properties of 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione?

Vapor Pressure: 0.003 [mmHg].

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.