N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide
N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide (CAS: 21715-90-2; C9H9NO3) is a specialty chemical with a molecular weight of 179.17 g/mol. It is recognised for its utility in chemical synthesis, particularly in the fields of peptide chemistry and polymer science. Its structure lends itself to applications in active ester formation and as a monomer for advanced materials, including those used in lithography and microelectronics. TSS supplies this compound for research and development purposes.
- IUPAC
- N-Hydroxybicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid imide,HONB
- Synonyms
- N-Hydroxybicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid imideHONB

Peptide Synthesis
This compound serves as an active ester intermediate, facilitating efficient peptide bond formation. Its use is crucial in the synthesis of complex peptides and peptidomimetics in chemical biology research.
Polymer Science
As a norbornene monomer, it can be incorporated into polymers, imparting unique properties such as etch resistance. This makes it valuable for developing advanced materials for lithography and micro/nanoelectronics.
Chemical Biology
Its reactivity as an active ester makes it a useful building block in chemical biology for the modification of biomolecules or the creation of probes.
Materials Science
The compound's structure is suitable for creating novel materials with specific functionalities, potentially useful in self-assembly processes or contact printing applications.
| Molecular weight | 179.17 |
|---|---|
| Empirical formula | C9H9NO3 |
| Assay | 97% |
| Melting point | 165-170 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide used for?
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N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide is primarily used in chemical synthesis, particularly as an active ester in peptide coupling and for the development of advanced polymers and materials for applications in lithography and microelectronics.
What is the CAS number and formula for N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide?
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The CAS number is 21715-90-2, and its empirical formula is C9H9NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide with an assay of 97%. This product is intended for research and development; TSS does not represent it as USP, BP, or EP grade.
How should N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide be handled?
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Handle this compound with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Ensure adequate ventilation to avoid inhaling dust and prevent skin and eye contact, as it is classified as an irritant.
Is N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide a controlled substance?
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The provided data does not indicate that N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide is a controlled substance.
How is N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide packed and shipped?
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Products are carefully packed according to regulatory requirements for safe transport and are exported globally by TSS.
How can I request a sample or quote for N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide?
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Please contact our sales team via the website or direct inquiry to request a sample or obtain a quotation for N-Hydroxy-5-norbornene-2,3-dicarboxylic acid imide.
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