Nadic anhydride
Also known as: Himic anhydride, 5-Norbornene-2,3-dicarboxylic anhydride, endo-cis-5-Norbornene-2,3-dicarboxylic anhydride, 3,6-Endomethylene-1,2,3,6-tetrahydrophthalic anhydride, bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, carbic anhydride, 3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione
Nadic anhydride (CAS 826-62-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O3 and a molecular weight of 164.158 g/mol. Key properties include a melting point of 158-164ºC, a boiling point of 331.1±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 163.8±25.1 °C. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction, H318 — Causes serious eye damage and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 826-62-0
- Jingsj CID
- J-951738-8
- Molecular Formula
- C9H8O3
- Molecular Weight
- 164.158 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 158-164ºC |
|---|---|
| Boiling Point | 331.1±42.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 163.8±25.1 °C |
| Exact Mass | 164.047348 |
| PSA | 43.37000 |
| LogP | -0.04 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.584 |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 Nadic anhydride?
The CAS number of Nadic anhydride is 826-62-0.
What are the molecular formula and molecular weight of Nadic anhydride?
Nadic anhydride has molecular formula C9H8O3 and molecular weight 164.158 g/mol.
Is Nadic anhydride hazardous?
Nadic anhydride has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H318 — Causes serious eye damage; H334 — May cause allergy or asthma symptoms if inhaled.
What are the upstream and downstream products of Nadic anhydride?
For Nadic anhydride, Upstream Products: Maleic anhydride, Cyclopentadiene, Tricyclo[5.2.1.02,6]deca-3,8-diene; Downstream Products: Nadic acid, 5-Norbornene-2,3-dicarboximide, 5-Norbornene-2,3-dicarboxylic acid monomethyl ester.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Nadic anhydride (CAS 826-62-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-951738-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.