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N-Succinimidyl 4-Benzoylbenzoate

Also known as: (2,5-dioxopyrrolidin-1-yl) 4-benzoylbenzoate, 1-[(4-Benzoylbenzoyl)oxy]-2,5-pyrrolidinedione, 1-[(4-Benzoylbenzoyl)oxy]pyrrolidine-2,5-dione, 2,5-Pyrrolidinedione, 1-[(4-benzoylbenzoyl)oxy]-, 4-Benzoylbenzoic Acid N-Succinimidyl Ester, 4-Benzoylbenzoic acid succinimidyl ester, N-Hydroxysuccinimidyl-4-benzoylbenzoate, p-Benzoylbenzoic acid N-hydroxysuccinimide ester, 4-(N-Succinimidylcarboxy)benzophenone, 4-Benzoylbenzoate NHS ester

N-Succinimidyl 4-Benzoylbenzoate (CAS 91990-88-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H13NO5 and a molecular weight of 323.299 g/mol. Key properties include a melting point of 205-206ºC, a boiling point of 501.5±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 257.1±30.7 °C. It is classified under GHS with signal word Warning and hazard statements H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
91990-88-4
Jingsj CID
J-1368844-3
Molecular Formula
C18H13NO5
Molecular Weight
323.299 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point205-206ºC
Boiling Point501.5±52.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point257.1±30.7 °C
Exact Mass323.079376
PSA80.75000
LogP1.34
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.645

GHS Safety & Compliance

Environmental HazardSignal word: Warning
  • H400 — Very toxic to aquatic life

Frequently Asked Questions

What is the CAS number of N-Succinimidyl 4-Benzoylbenzoate?

The CAS number of N-Succinimidyl 4-Benzoylbenzoate is 91990-88-4.

What are the molecular formula and molecular weight of N-Succinimidyl 4-Benzoylbenzoate?

N-Succinimidyl 4-Benzoylbenzoate has molecular formula C18H13NO5 and molecular weight 323.299 g/mol.

Is N-Succinimidyl 4-Benzoylbenzoate hazardous?

N-Succinimidyl 4-Benzoylbenzoate has GHS signal word Warning and hazard statements H400 — Very toxic to aquatic life.

What are the upstream and downstream products of N-Succinimidyl 4-Benzoylbenzoate?

For N-Succinimidyl 4-Benzoylbenzoate, Upstream Products: N-Hydroxysuccinimide, 4-Benzoylbenzoic 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. "N-Succinimidyl 4-Benzoylbenzoate (CAS 91990-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1368844-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.