2,2-Dimethylglutaric anhydride
Also known as: 2,2-dimethylglutaric acid anhydride, 3,3-dimethyldihydro-2H-pyran-2,6(3H)-dione, 3,3-dimethyltetrahydro-2H-pyran-2,6-dione, alpha,alpha-dimethylglutaric anhydride, 3,3-dimethylglutaric anhydride, 3,3-dimethyloxane-2,6-dione, NSC 60199, dihydro-3,3-dimethyl-2H-pyran-2,6(3H)-dione, dimethylglutaric anhydride
2,2-Dimethylglutaric anhydride (CAS 2938-48-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H10O3 and a molecular weight of 142.15200 g/mol. Key properties include a melting point of 34-38 °C(lit.), a boiling point of 175-180 °C60 mm Hg(lit.), a density of 1.102g/cm3 and a flash point of >110.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 2938-48-9
- Jingsj CID
- J-1993527-4
- Molecular Formula
- C7H10O3
- Molecular Weight
- 142.15200 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-38 °C(lit.) |
|---|---|
| Boiling Point | 175-180 °C60 mm Hg(lit.) |
| Density | 1.102g/cm3 |
| Flash Point | >110.0 °C |
| Exact Mass | 142.06300 |
| PSA | 43.37000 |
| LogP | 0.87620 |
| Vapor Pressure | 0.0083mmHg at 25°C |
| Refractive Index | 1.444 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,2-Dimethylglutaric anhydride?
The CAS number of 2,2-Dimethylglutaric anhydride is 2938-48-9.
What are the molecular formula and molecular weight of 2,2-Dimethylglutaric anhydride?
2,2-Dimethylglutaric anhydride has molecular formula C7H10O3 and molecular weight 142.15200 g/mol.
Is 2,2-Dimethylglutaric anhydride hazardous?
2,2-Dimethylglutaric anhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2,2-Dimethylglutaric anhydride?
For 2,2-Dimethylglutaric anhydride, Upstream Products: 2,2-Dimethylglutaric acid; Downstream Products: 4,4-Dimethyl-1,3-cyclohexanedione, 5,5-Dimethyldihydrofuran-2(3H)-one, 4-Methyl-3-pentenoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,2-Dimethylglutaric anhydride (CAS 2938-48-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993527-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.