Phthalic anhydride, 99%
Phthalic anhydride, 99% (CAS 85-44-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 500 g.
About Phthalic anhydride, 99%
Zemixal supplies Phthalic anhydride, 99% within its pharma Intermediates & Building Blocks portfolio. Key data (Synthesis): CAS 85-44-9, formula C8H4O3 and molar mass 148.11 g/mol. Expect white crystalline powder.
Where it is used
- Polymer & resin production
- Organic synthesis
Storage and safety notes
Physical constants on file: melting point 131-134 °C, boiling point 284 °C and density 1.53 g/cm3 at 20 °C. Hazard communication follows GHS (Danger: H302, H315, H317 and H318). Our SDS lists exposure controls and first-aid measures.
Available as 500 g, 5 kg, 25 kg and 4 x 25 kg. Larger or split packs can be arranged. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Polymer & resin production
- Organic synthesis
Applications
Specifications and identifiers
| Product name | Phthalic anhydride, 99% |
|---|---|
| Catalogue number | ZX-008218 |
| CAS number | 85-44-9 |
| IUPAC name | 2-benzofuran-1,3-dione |
| Molecular formula | C8H4O3 |
| Molar mass | 148.11 g/mol |
| Exact mass | 148.016 |
| Grade | Synthesis |
| Purity / assay | 99% |
| Physical form | Powder |
| Appearance | White crystalline powder |
| Melting point | 131-134 °C |
| Boiling point | 284 °C |
| Density | 1.53 g/cm3 at 20 °C |
| XLogP3 | 1.3 |
| H-bond donors / acceptors | 0 / 3 |
| Topological polar surface area | 43.4 Ų |
| HS code | 29173500 |
| InChIKey | LGRFSURHDFAFJT-UHFFFAOYSA-N |
| SMILES | C1=CC=C2C(=C1)C(=O)OC2=O |
| PubChem CID | 6811 |
| Synonyms | 1,3-Isobenzofurandione, Phthalandione, Retarder esen, 1,3-Dioxophthalan, 1,3-Phthalandione, Phthalic acid anhydride, Retarder AK, Retarder PD, o-Phthalic acid anhydride, Vulkalent B/C, Anidride ftalica, Ftalowy bezwodnik |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335May cause respiratory irritation
Precautionary statements P233, P260, P261, P264, P264 + P265, P270, P271, P272, P280, P284, P301 + P317, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P330, P332 + P317, P333 + P317, P342 + P316, P362 + P364, P403, P403 + P233
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 500 g | Quoted on request | |
| 5 kg | Quoted on request | |
| 25 kg | Quoted on request | |
| 4 x 25 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Phthalic anhydride, 99%
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Other grades with CAS 85-44-9
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