1535899

Phthalic acid

United States Pharmacopeia (USP) Reference Standard

• Synonym(s): Phthalic acid, 1,2-Benzenedicarboxylic acid
• Linear Formula: C₆H₄-1,2-(CO₂H)₂
• CAS Number: 88-99-3
• Molecular Weight: 166.13
• UNSPSC Code: 41116107
• NACRES: NA.24
• PubChem Substance ID: 329750832
• MDL number: MFCD00002467
• Beilstein/REAXYS Number: 608199

Properties

• grade: pharmaceutical primary standard
• agency: USP
• API family: fluorescein
• form: crystalline
• manufacturer/tradename: USP
• mp: 210-211 °C (dec.) (lit.)
• solubility: alcohol: soluble, water: partially soluble
• density: 1.59 g/cm³ at 15 °C
• application(s): pharmaceutical (small molecule)
• format: neat
• SMILES string: OC(C1=C(C(O)=O)C=CC=C1)=O
• InChI: 1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)
• InChI key: XNGIFLGASWRNHJ-UHFFFAOYSA-N

Description

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including MSDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.
For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Phthalic acid USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:

• Fluorescein Injection
• Fluorescein Sodium

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H318
• pcodes: P280 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: 334.4 °F
• flash_point_c: 168 °C