N-Phthalyl-DL-glutamic Anhydride

N-酞酰基-DL-谷氨酸酐

Also known as: N-Phthaloyl-DL-glutamic anhydride, 2-(2,6-Dioxotetrahydro-2H-pyran-3-yl)isoindoline-1,3-dione, 2-(Tetrahydro-2,6-dioxo-2H-pyran-3-yl)-1H-isoindole-1,3(2H)-dione, N-Phthalimidoglutaric Anhydride, EINECS 222-088-1, MFCD00005886

N-Phthalyl-DL-glutamic Anhydride (CAS 3343-28-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H9NO5 and a molecular weight of 259.214 g/mol. It is also known as N-Phthaloyl-DL-glutamic anhydride, 2-(2,6-Dioxotetrahydro-2H-pyran-3-yl)isoindoline-1,3-dione and 2-(Tetrahydro-2,6-dioxo-2H-pyran-3-yl)-1H-isoindole-1,3(2H)-dione. Key properties include a melting point of 197-201ºC(lit.), a boiling point of 484.8±38.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 247.0±26.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3343-28-0
Jingsj CID
J-23006-1
Molecular Formula
C13H9NO5
Chinese Name
N-酞酰基-DL-谷氨酸酐
Molecular Weight
259.214 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point197-201ºC(lit.)
Boiling Point484.8±38.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point247.0±26.8 °C
Exact Mass259.048065
PSA80.75000
LogP0.29
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.647

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H351 — Suspected of causing cancer

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 N-Phthalyl-DL-glutamic Anhydride?

The CAS number of N-Phthalyl-DL-glutamic Anhydride is 3343-28-0.

What are the molecular formula and molecular weight of N-Phthalyl-DL-glutamic Anhydride?

N-Phthalyl-DL-glutamic Anhydride has molecular formula C13H9NO5 and molecular weight 259.214 g/mol.

Is N-Phthalyl-DL-glutamic Anhydride hazardous?

N-Phthalyl-DL-glutamic Anhydride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of N-Phthalyl-DL-glutamic Anhydride?

For N-Phthalyl-DL-glutamic Anhydride, Upstream Products: Phthalyl-DL-glutamic acid, Phthalic anhydride, L-Glutamic acid; Downstream Products: Thalidomide, Phthalyl-DL-glutamic acid.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-Phthalyl-DL-glutamic Anhydride (CAS 3343-28-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23006-1 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.