5-Norbornene-2-carboxylic acid, mixture of endo and exo, predominantly endo
5-Norbornene-2-carboxylic acid, a mixture of endo and exo isomers with the endo form predominating, is supplied by Tech Serve Solutions. Identified by CAS number 120-74-1 and molecular formula C8H10O2, this compound has a molecular weight of 138.16 g/mol. It serves as a valuable building block in organic synthesis, particularly in polymer science and materials research due to its norbornene moiety. Its carboxylic acid functionality allows for further derivatisation.
- Synonyms
- 120-74-1C8H10O25-Norbornene-2-carboxylic acid, endo/exo mixture

Polymer Science
Utilised as a monomer in the synthesis of advanced polymers, particularly those requiring specific thermal or mechanical properties derived from the rigid norbornene structure. It can be incorporated into polymer backbones or side chains.
Organic Synthesis
Serves as a versatile intermediate in the construction of complex organic molecules. The bicyclic structure and functional groups allow for diverse synthetic transformations and the creation of novel chemical entities.
Materials Research
Investigated for its potential use in developing new materials with tailored characteristics, such as high-performance resins or functional coatings. The unique steric and electronic properties of the norbornene system are key.
| Molecular weight | 138.16 |
|---|---|
| Empirical formula | C8H10O2 |
| Assay | 98% |
| Boiling point | 136-138 °C/14 mmHg(lit.) |
| Density | 1.129 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.494(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3265 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 5-Norbornene-2-carboxylic acid used for?
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5-Norbornene-2-carboxylic acid is primarily used as a building block in organic synthesis, particularly in polymer science and materials research. It acts as a monomer for creating specialised polymers and as an intermediate for synthesising complex organic molecules.
What is the CAS number and formula for 5-Norbornene-2-carboxylic acid?
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The CAS number for 5-Norbornene-2-carboxylic acid is 120-74-1. Its empirical formula is C8H10O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Norbornene-2-carboxylic acid with an assay of 98%. This product is not represented as USP, BP, or EP grade.
How should 5-Norbornene-2-carboxylic acid be handled safely?
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This compound is classified as Danger with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including face shields, full-face respirators, gloves, and goggles, must be used. Handle in a well-ventilated area, and refer to the Safety Data Sheet for detailed guidance.
How is this chemical exported and shipped?
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Tech Serve Solutions exports and ships chemicals globally, adhering to all relevant transportation regulations. This product is classified under UN 3265, Class 8, Packing Group III.
How can I request a sample or quote for 5-Norbornene-2-carboxylic acid?
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To request a sample or a quote for 5-Norbornene-2-carboxylic acid, please contact our sales team through the website or by phone. We are happy to assist with your specific requirements.
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