Homophthalic anhydride, 98%
Order Homophthalic anhydride, 98% (CAS 703-59-3) online at Zemixal. Request a quote with price, lead time and documents.
About Homophthalic anhydride, 98%
Homophthalic anhydride, 98% is part of the Zemixal acid Halides & Anhydrides range. Identity at a glance (98%): CAS 703-59-3, formula C9H6O3 and molar mass 162.14 g/mol. Typical appearance is white to orange to green powder or crystals.
Use cases we see most often
- Fine chemical synthesis
- Organic synthesis
Safe handling
Physical constants on file: melting point 142 °C. Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.
Standard pack sizes are 5 g, 25 g and 100 g, and custom quantities are quoted on request. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Fine chemical synthesis
- Organic synthesis
Applications
Specifications and identifiers
| Product name | Homophthalic anhydride, 98% |
|---|---|
| Catalogue number | ZX-008199 |
| CAS number | 703-59-3 |
| IUPAC name | 4H-isochromene-1,3-dione |
| Molecular formula | C9H6O3 |
| Molar mass | 162.14 g/mol |
| Exact mass | 162.0317 |
| Purity / assay | 98% |
| Physical form | Crystalline |
| Appearance | White to orange to green powder or crystals |
| Melting point | 142 °C |
| XLogP3 | 0.7 |
| H-bond donors / acceptors | 0 / 3 |
| Topological polar surface area | 43.4 Ų |
| HS code | 29333990 |
| InChIKey | AKHSBAVQPIRVAG-UHFFFAOYSA-N |
| SMILES | C1C2=CC=CC=C2C(=O)OC1=O |
| PubChem CID | 12801 |
| Synonyms | Isochroman-1,3-dione, 1H-2-Benzopyran-1,3(4H)-dione, Homophthalic acid anhydride, 1,3-Isochromandione, isochromane-1,3-dione, 3,4-dihydro-1H-2-benzopyran-1,3-dione, Benzoglutaric anhydride, 1H-Isochromene-1,3(4H)-dione, 2-benzopyran-1,3(4H)dione, 4H-benzo[c]pyran-1,3-dione, homophtalic anhydride, o-Carboxyphenylacetic acid cyclic anhydride |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 5 g | Quoted on request | |
| 25 g | Quoted on request | |
| 100 g | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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