N-Methylphthalimide
Also known as: 1H-Isoindole-1,3(2H)-dione, 2-methyl-, 2-Methylisoindoline-1,3-dione, 2-Methyl-1H-isoindole-1,3(2H)-dione, Methyl Phthalimide, Phthalimide-N-methyl, Rivaroxaban Impurity 20, Rivaroxaban Impurity F, EINECS 208-982-4, MFCD00023063, N-methyl-phthalimid
N-Methylphthalimide (CAS 550-44-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2 and a molecular weight of 161.157 g/mol. Key properties include a melting point of 129-132 °C(lit.), a boiling point of 286.0±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 117.4±11.1 °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 Aug 21, 2026.
- CAS No.
- 550-44-7
- Jingsj CID
- J-32632-9
- Molecular Formula
- C9H7NO2
- Molecular Weight
- 161.157 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 129-132 °C(lit.) |
|---|---|
| Boiling Point | 286.0±0.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 117.4±11.1 °C |
| Exact Mass | 161.047684 |
| PSA | 37.38000 |
| LogP | 1.56 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.607 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2925190090 |
|---|---|
| Summary | 2925190090 other imides and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of N-Methylphthalimide?
The CAS number of N-Methylphthalimide is 550-44-7.
What are the molecular formula and molecular weight of N-Methylphthalimide?
N-Methylphthalimide has molecular formula C9H7NO2 and molecular weight 161.157 g/mol.
Is N-Methylphthalimide hazardous?
N-Methylphthalimide 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 N-Methylphthalimide?
For N-Methylphthalimide, Upstream Products: 2-Iodobenzoic acid, Methanol, 2-(4-(Methylsulfinyl)butyl)isoindoline-1,3-dione; Downstream Products: Phthalic acid, 4-Nitro-N-methylphthalimide, 3-Acetylindole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N-Methylphthalimide (CAS 550-44-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32632-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.