3-Methylglutaric anhydride
3-甲基戊二酸酐
Also known as: 4-methyloxane-2,6-dione, 4-methyltetrahydro-2H-pyran-2,6-dione, 3-methylpentanedioic anhydride, dihydro-4-methyl-2H-pyran-2,6(3H)-dione
3-Methylglutaric anhydride (CAS 4166-53-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O3 and a molecular weight of 128.12600 g/mol. It is also known as 4-methyloxane-2,6-dione, 4-methyltetrahydro-2H-pyran-2,6-dione and 3-methylpentanedioic anhydride. Key properties include a melting point of 42-46 °C(lit.), a boiling point of 180-182 °C25 mm Hg(lit.), a density of 1.159g/cm3 and a flash point of >230 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4166-53-4
- Jingsj CID
- J-26432-7
- Molecular Formula
- C6H8O3
- Chinese Name
- 3-甲基戊二酸酐
- Molecular Weight
- 128.12600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 42-46 °C(lit.) |
|---|---|
| Boiling Point | 180-182 °C25 mm Hg(lit.) |
| Density | 1.159g/cm3 |
| Flash Point | >230 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 3-Methylglutaric anhydride?
The CAS number of 3-Methylglutaric anhydride is 4166-53-4.
What are the molecular formula and molecular weight of 3-Methylglutaric anhydride?
3-Methylglutaric anhydride has molecular formula C6H8O3 and molecular weight 128.12600 g/mol.
Is 3-Methylglutaric anhydride hazardous?
3-Methylglutaric anhydride has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methylglutaric anhydride (CAS 4166-53-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26432-7 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.