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N-Hydroxysuccinimide

Also known as: 1-Hydroxy-2,5-pyrrolidinedione, 1-Hydroxypyrrolidine-2,5-dione, 1-Hydroxysuccinimide, HOSu, NHS, Succinimide, N-hydroxy-

N-Hydroxysuccinimide (CAS 6066-82-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C4H5NO3 and a molecular weight of 115.087 g/mol. Key properties include a melting point of 95-98 °C(lit.), a boiling point of 262.4±23.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 112.5±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6066-82-6
Jingsj CID
J-27965-9
Molecular Formula
C4H5NO3
Molecular Weight
115.087 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point95-98 °C(lit.)
Boiling Point262.4±23.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point112.5±22.6 °C
Exact Mass115.026939
PSA57.61000
LogP-2.00
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.600
Additional PropertySOLUBLE

Customs & Trade Information

HS Code2925190090
Summary2925190090 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-Hydroxysuccinimide?

The CAS number of N-Hydroxysuccinimide is 6066-82-6.

What are the molecular formula and molecular weight of N-Hydroxysuccinimide?

N-Hydroxysuccinimide has molecular formula C4H5NO3 and molecular weight 115.087 g/mol.

What are the upstream and downstream products of N-Hydroxysuccinimide?

For N-Hydroxysuccinimide, Upstream Products: Succinic acid, tert-butyl 2,5-dioxopyrrolidine-1-carboxylate, Glutaric acid; Downstream Products: (2,5-dioxopyrrolidin-1-yl) 1,2,2,2-tetrachloroethyl carbonate, Phthalylglycine hydroxysuccinimide ester, N-Acryloxysuccinimide.

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-Hydroxysuccinimide (CAS 6066-82-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27965-9 (accessed 2026-11-07).

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