Phthalic Anhydride
Order Phthalic Anhydride (CAS 85-44-9) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Ships from India to 120+ countries.
About Phthalic Anhydride
Phthalic Anhydride sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. Key data (Reference Standard): CAS 85-44-9, formula C8H4O3 and molar mass 148.11 g/mol. It is handled as a solid.
Typical applications
- API route development
- Impurity fate & purge studies
- Analytical method development
Safe handling
Hazard communication follows GHS (Danger: H302, H315, H317 and H318). Our SDS lists exposure controls and first-aid measures.
Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. 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.
See every impurity, metabolite and related compound we list for this API.
Fluorescein standardsTypical uses
- API route development
- Impurity fate & purge studies
- Analytical method development
Applications
Specifications and identifiers
| Product name | Phthalic Anhydride |
|---|---|
| Catalogue number | ZX-012778 |
| 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 | Reference Standard |
| Physical form | Solid |
| XLogP3 | 1.3 |
| H-bond donors / acceptors | 0 / 3 |
| Topological polar surface area | 43.4 Ų |
| InChIKey | LGRFSURHDFAFJT-UHFFFAOYSA-N |
| SMILES | C1=CC=C2C(=C1)C(=O)OC2=O |
| PubChem CID | 6811 |
| Synonyms | 1,3-Isobenzofurandione, 1,2-Benzenedicarboxylic anhydride, 1,3-Phthalandione, Araldite HT 901, ESEN, HT 901, Phthalandione, Phthalanhydride, Phthalic acid anhydride, Retarder AK, Retarder B-C, Retarder ESEN |
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
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request | |
| 250 mg | Quoted on request | |
| 500 mg | Quoted on request | |
| 1 g | 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
Which CAS number identifies Phthalic Anhydride?
What are the formula and molar mass of Phthalic Anhydride?
How is Phthalic Anhydride used in pharmaceutical QC?
What grade and pack sizes are available for Phthalic Anhydride?
Which documents come with Phthalic Anhydride?
Can Zemixal ship Phthalic Anhydride to my country?
Other grades with CAS 85-44-9
More Fluorescein standards
More in API Process Intermediates & Related Compounds
Have a list of compounds to price?
Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.