Phthalic acid, GR 99.5%

Name: Phthalic acid, GR 99.5%
Brand: Vaqora Chemicals
SKU: VQ-008571

About Phthalic acid, GR 99.5%

Vaqora Chemicals supplies Phthalic acid (AR grade), a carboxylic acid registered under CAS number 88-99-3 with a typical assay of 99.5%. Formula C8H6O4, molecular weight 166.13 g/mol. It is also known as 1,2-Benzenedicarboxylic acid or o-phthalic acid.

In its supplied form it is a white to off-white crystalline powder. Reported physical data include a melting point of 210-211 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include dyes and pigments manufacture, polymer and resin production and reduction reactions. Typical end-use sectors are pharmaceutical manufacturing, academic and industrial research and polymers and plastics.

We offer Phthalic acid in 500 g, 5 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Dyes & pigments manufacture
Polymer & resin production
Reduction reactions

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Phthalic acid, GR 99.5%
Catalogue No.	VQ-008571
CAS Number	88-99-3
IUPAC name	phthalic acid
Molecular formula	C₈H₆O₄
Molecular weight	166.13 g/mol
Exact mass	166.0266
Grade	AR
Purity / assay	99.5%
HSN code	29173930
InChIKey	XNGIFLGASWRNHJ-UHFFFAOYSA-N
SMILES	C1=CC=C(C(=C1)C(=O)O)C(=O)O
PubChem CID	1017

Physical properties
Physical form	Powder
Appearance	White to off-white crystalline powder
Melting point	210-211 °C
LogP (XLogP3)	0.7
H-bond donors / acceptors	2 / 4
TPSA	74.6 Å²
Synonyms	1,2-Benzenedicarboxylic acid, o-phthalic acid, benzene-1,2-dicarboxylic acid, o-dicarboxybenzene, o-benzenedicarboxylic acid, Acide phtalique, Kyselina ftalova, ortho-phthalic acid, Pathalic acid, Orthophthalic acid, Sunftal 20

Safety & hazard information (GHS)

Health hazard

Signal word: Danger

Precautionary statements: P203, P280, P318, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 88-99-3

Synthesis

Phthalic acid, 98%

CAS: 88-99-3
Formula: C₈H₆O₄
MW: 166.13 g/mol

VQ-008570

Frequently asked questions

What is the CAS number of Phthalic acid, GR 99.5%?

The CAS Registry Number of Phthalic acid, GR 99.5% is 88-99-3. It is also known as 1,2-Benzenedicarboxylic acid, o-phthalic acid, benzene-1,2-dicarboxylic acid.

What is the molecular formula and molecular weight of Phthalic acid, GR 99.5%?

Phthalic acid, GR 99.5% has the molecular formula C8H6O4 and a molecular weight of 166.13 g/mol. Its IUPAC name is phthalic acid.

Which grade and pack sizes of Phthalic acid, GR 99.5% can I order?

We supply Phthalic acid, GR 99.5% in AR (99.5%) grade, in 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phthalic acid, GR 99.5%?

Yes. Every lot of Phthalic acid, GR 99.5% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Phthalic acid, GR 99.5% be shipped internationally?

Yes. Phthalic acid, GR 99.5% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.