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cis-5-Norbornene-exo-2,3-dicarboxylic anhydride

Also known as: (3aR,4R,7S,7aS)-rel-3a,4,7,7a-Tetrahydro-4,7-methanoisobenzofuran-1,3-dione, 3,6-Endomethylene-1,2,3,6-tetrahydro-cis-phthalic anhydride, 3,6-Endomethylene-δ4-tetrahydrophthalic anhydride, 3a,4,7,7a-tetrahydro-4,7-methano-2-benzofuran-1,3-dione, 3aa,4,7,7aa-Tetrahydro-4a,7a-methanoisobenzofuran-1,3-dione, 4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, 4-Oxatricyclo[5.2.1.0]dec-8-ene-3,5-dione, 5-Norbornene-2,3-dicarboxylic anhydride, cis-exo, Bicyclo[2.2.1]-5-heptene-2,3-dicarboxylic anhydride, Bicyclo[2.2.1]hept-5-ene-exo-2,3-dicarboxylic anhydride, CIS-5-NORBORNENE-EXO-2,3-DICARBOXYLIC ANHYDRIDE, cis-Norbornene-exo-2,3-dicarboxylic anhydride, di-exo-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, exo-3,6-Methylene-1,2,3,6-tetrahydrophthalic anhydride, exo-cis-5-Norbornene-2,3-dicarboxylic anhydride, norborn-5-ene-2exo,3exo-dicarboxylic acid anhydride, Exo-5-norbornene-2,3-dicarboxylic anhydride

cis-5-Norbornene-exo-2,3-dicarboxylic anhydride (CAS 2746-19-2) 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 140-145ºC(lit.), 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.
2746-19-2
Jingsj CID
J-1513049-1
Molecular Formula
C9H8O3
Molecular Weight
164.158 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point140-145ºC(lit.)
Boiling Point331.1±42.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point163.8±25.1 °C
Exact Mass164.047348
PSA43.37000
LogP-0.04
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.584

GHS Safety & Compliance

Corrosion / Health HazardSignal word: Danger
  • 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 Code2932999099
Summary2932999099. 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 cis-5-Norbornene-exo-2,3-dicarboxylic anhydride?

The CAS number of cis-5-Norbornene-exo-2,3-dicarboxylic anhydride is 2746-19-2.

What are the molecular formula and molecular weight of cis-5-Norbornene-exo-2,3-dicarboxylic anhydride?

cis-5-Norbornene-exo-2,3-dicarboxylic anhydride has molecular formula C9H8O3 and molecular weight 164.158 g/mol.

Is cis-5-Norbornene-exo-2,3-dicarboxylic anhydride hazardous?

cis-5-Norbornene-exo-2,3-dicarboxylic 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 cis-5-Norbornene-exo-2,3-dicarboxylic anhydride?

For cis-5-Norbornene-exo-2,3-dicarboxylic anhydride, Upstream Products: Maleic anhydride, Carbic anhydride, Cyclopentadiene; Downstream Products: Methyl (1S,2R,3S,4R)-3-[(4-fluorobenzyl)amino]bicyclo[2.2.1]heptane-2-carboxylate, cis-1,2,3,4-cyclopentanetetracarboxylic acid, Lurasidone Hydrochloride.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "cis-5-Norbornene-exo-2,3-dicarboxylic anhydride (CAS 2746-19-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1513049-1 (accessed 2026-11-09).

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