GRADE & PURITYPremium-Grade Reagents?Premium-grade reagents with enhanced purity and tighter QC than standard grades. Use for demanding applications needing extra consistency.≥99%
Premium-Grade Reagents, ≥99% Premium-Grade Reagents for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Room temperature,Argon charged Ships FedEx DG Service Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 13 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Übersicht
Product Describtion:
Phthalic anhydride is an industrially important chemical. It can be prepared from o-xylene or naphthalene. It is widely used for the industrial preparation of plasticizers for PVC (polyvinyl chloride).Phthalic anhydride can be synthesized via oxidation of o-xylene, in the presence of V2O5/TiO2 monolithic catalyst supported by aluminium honeycomb.
This compound belongs to the class of organic compounds known as phthalic anhydrides. These are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione.
External Descriptors
2-benzofurans - cyclic dicarboxylic anhydride
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.
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What is the purity of this product?
This product is supplied at ≥99% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
What does Premium-Grade Reagents mean?
Premium-Grade Reagents is a defined analytical purity tier suitable for general analytical and reagent applications. It specifies a minimum assay percentage, controlled limits on common impurities (water, heavy metals, residue on ignition), and lot-to-lot consistency. Premium-Grade Reagents is one of several purity tiers — choose based on the sensitivity and regulatory requirements of your method.
How should this product be stored?
Store at room temperature under argon. It is supplied under an argon blanket; reseal under inert gas after each use.
How is this product shipped?
This product is classified as dangerous goods and ships via FedEx DG Service. Ground and other economy services are not available, and delivery to some destinations or address types may be restricted.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 85-44-9, the molecular formula is C8H4O3, and the molecular weight is 148.12 g/mol. InChIKey LGRFSURHDFAFJT-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.
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