3-Chlorophthalic anhydride
3-氯苯酐
Also known as: 1,3-Isobenzofurandione, 4-chloro-, 4-Chloro-2-benzofuran-1,3-dione, 4-Chloroisobenzofuran-1,3-dione, 3-Chlorophthalic acid anhydride, 4-Chloro-1,3-dihydro-2-benzofuran-1,3-dione, 4-Chloro-1,3-isobenzofurandione, NSC 122937, chlorphthalidone, 3-Chlorophtalic anhydride, EINECS 204-179-8, MFCD00023107
- CAS No.
- 117-21-5
- Jingsj CID
- J-42957-7
- Molecular Formula
- C8H3ClO3
- Chinese Name
- 3-氯苯酐
- Molecular Weight
- 182.561 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 123-126 °C |
|---|---|
| Boiling Point | 317.2±15.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 152.2±19.4 °C |
Frequently Asked Questions
What is the CAS number of 3-Chlorophthalic anhydride?
117-21-5
What are the molecular formula and molecular weight of 3-Chlorophthalic anhydride?
C8H3ClO3, molecular weight 182.561 g/mol
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026