3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮（CAS 11070-44-3）：分子式 C9H10O3、分子量 166.17。
| CAS号 | 11070-44-3 |
|---|---|
| 分子式 | C9H10O3 |
| 分子量 | 166.17 |
| LogP | 1.4 |
| 应用领域 | Uses: Used mainly as a hardener for epoxy resins、[eChemPortal: SIDSUNEP]、Plastic Composites Manufacturing [Category: Industry]、Industry Uses: Not Known or Reasonably Ascertainable、Intermediate、Insulators、Surfactant (surface active agent)、Consumer Uses: Surfactant (surface active agent)、Not Known or Reasonably Ascertainable、U.S. Production: 2023: 700、000 - <850、000 lb、2022: 550、000 - <700、2021: 400、000 - <550、2020: 400、General Manufacturing Information: Electrical Equipment、Appliance、and Component Manufacturing、Utilities、Plastics Material and Resin Manufacturing、1、3-Isobenzofurandione、tetrahydromethyl-: ACTIVE |
登记用途：Uses: Used mainly as a hardener for epoxy resins、[eChemPortal: SIDSUNEP]、Plastic Composites Manufacturing [Category: Industry]、Industry Uses: Not Known or Reasonably Ascertainable、Intermediate、Insulators、Surfactant (surface active agent)、Consumer Uses: Surfactant (surface active agent)、Not Known or Reasonably Ascertainable、U.S. Production: 2023: 700、000 - <850、000 lb、2022: 550、000 - <700、2021: 400、000 - <550、2020: 400、General Manufacturing Information: Electrical Equipment、Appliance、and Component Manufacturing、Utilities、Plastics Material and Resin Manufacturing、1、3-Isobenzofurandione、tetrahydromethyl-: ACTIVE。
3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮 是一种化工化合物，登记 CAS 号为 11070-44-3，分子式 C9H10O3（分子量 166.17）。
登记 CAS 号：11070-44-3
其分子式 C9H10O3 由 9 个碳、10 个氢、3 个氧 组成。
别名/同义词：3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮 · 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione
3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮 的 CAS 登记号为 11070-44-3。
分子式 C9H10O3，分子量 166.17。
别名/同义词：3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮、3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione。
登记用途：Uses: Used mainly as a hardener for epoxy resins、[eChemPortal: SIDSUNEP]、Plastic Composites Manufacturing [Category: Industry]、Industry Uses: Not Known or Reasonably Ascertainable、Intermediate、Insulators、Surfactant (surface active agent)、Consumer Uses: Surfactant (surface active agent)、Not Known or Reasonably Ascertainable、U.S. Production: 2023: 700、000 - <850、000 lb、2022: 550、000 - <700、2021: 400、000 - <550、2020: 400、General Manufacturing Information: Electrical Equipment、Appliance、and Component Manufacturing、Utilities、Plastics Material and Resin Manufacturing、1、3-Isobenzofurandione、tetrahydromethyl-: ACTIVE。
3a-甲基-5,6-二氢-4H-异苯并呋喃-1,3-二酮（CAS 11070-44-3）的独立参考数据，整理自公开化学数据库。
| 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 |
| 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 |
| Vapor Pressure | 0.003 [mmHg] |
|---|
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
| 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]
3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione · CAS 11070-44-3 · C9H10O3. UNII NS00003849. Vapor Pressure: 0.003 [mmHg].
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: 3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione