Hexahydro-4-methylphthalic anhydride
Also known as: MHHPA, 4-Methylcyclohexane-1,2-dicarboxylic anhydride, Hexahydro-4-methylphthalic anhydride, mixture of cis and trans, 4-Methyl-1,2-cyclohexanedicarboxylic anhydride, 5-Methylhexahydroisobenzofuran-1,3-dione, Hexahydro-3-methylphthalic anhydride, MFCD00005927
Hexahydro-4-methylphthalic anhydride (CAS 19438-60-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H12O3 and a molecular weight of 168.190 g/mol. Key properties include a melting point of -29°C, a boiling point of 300.0±11.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 140.0±16.5 °C. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction, H318 — Causes serious eye damage and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 19438-60-9
- Jingsj CID
- J-1195-0
- Molecular Formula
- C9H12O3
- Molecular Weight
- 168.190 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -29°C |
|---|---|
| Boiling Point | 300.0±11.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 140.0±16.5 °C |
| Exact Mass | 168.078644 |
| PSA | 43.37000 |
| LogP | 0.73 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.486 |
| Additional Property | REACTS |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Hexahydro-4-methylphthalic anhydride?
The CAS number of Hexahydro-4-methylphthalic anhydride is 19438-60-9.
What are the molecular formula and molecular weight of Hexahydro-4-methylphthalic anhydride?
Hexahydro-4-methylphthalic anhydride has molecular formula C9H12O3 and molecular weight 168.190 g/mol.
Is Hexahydro-4-methylphthalic anhydride hazardous?
Hexahydro-4-methylphthalic anhydride has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H318 — Causes serious eye damage; H334 — May cause allergy or asthma symptoms if inhaled.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Hexahydro-4-methylphthalic anhydride (CAS 19438-60-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1195-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.