Tetrachlorophthalic anhydride
Also known as: 1,3-Isobenzofurandione, 4,5,6,7-tetrachloro-, 4,5,6,7-Tetrachloro-1,3-isobenzofurandione, 4,5,6,7-Tetrachloro-2-benzofuran-1,3-dione, Tetrachloro-1,2-benzenedicarboxylic acid anhydride, NIATHAL, TETRATHAL, EINECS 204-171-4, MFCD00005920
Tetrachlorophthalic anhydride (CAS 117-08-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8Cl4O3 and a molecular weight of 285.896 g/mol. Key properties include a melting point of 253-257 °C(lit.), a boiling point of 371.0±0.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 161.6±25.5 °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.
- 117-08-8
- Jingsj CID
- J-33216-1
- Molecular Formula
- C8Cl4O3
- Molecular Weight
- 285.896 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 253-257 °C(lit.) |
|---|---|
| Boiling Point | 371.0±0.0 °C at 760 mmHg |
| Density | 1.9±0.1 g/cm3 |
| Flash Point | 161.6±25.5 °C |
| Exact Mass | 283.860168 |
| PSA | 43.37000 |
| LogP | 3.56 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.656 |
| Additional Property | 0.8 mg/L (21 ºC) |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
- H350 — May cause cancer
- H373 — May cause damage to organs through prolonged exposure
- H410 — Very toxic to aquatic life with long lasting effects
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 Tetrachlorophthalic anhydride?
The CAS number of Tetrachlorophthalic anhydride is 117-08-8.
What are the molecular formula and molecular weight of Tetrachlorophthalic anhydride?
Tetrachlorophthalic anhydride has molecular formula C8Cl4O3 and molecular weight 285.896 g/mol.
Is Tetrachlorophthalic anhydride hazardous?
Tetrachlorophthalic 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 Tetrachlorophthalic anhydride?
For Tetrachlorophthalic anhydride, Upstream Products: Phthalic anhydride, Tetrachlorophthalic Acid Hemihydrate, Naphthalene; Downstream Products: N-Phenyltetrachlorophthalimide, 4,5,6,7-tetrafluoro-2-methylisoindole-1,3-dione, 4,5,6,7-tetrachloro-1H-indene-1,3(2H)-dione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tetrachlorophthalic anhydride (CAS 117-08-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33216-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.