Terphthaloyl chloride, 99%

Name: Terphthaloyl chloride, 99%
Brand: Vaqora Chemicals
SKU: VQ-009167

About Terphthaloyl chloride, 99%

Terphthaloyl chloride (CAS 100-20-9) is an acylating agent offered by Vaqora Chemicals (Synthesis grade), specified at 99% purity. Its molecular formula is C8H4Cl2O2 and its molecular weight is 203.02 g/mol. Its systematic (IUPAC) name is benzene-1,4-dicarbonyl chloride. It is also known as Terephthaloyl chloride or Terephthaloyl dichloride.

The material typically appears as white to off-white chunks chips or flakes. Literature values give a melting point of 79-81 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Terphthaloyl chloride in 100 g, 500 g, 5 kg and 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Terphthaloyl chloride, 99%
Catalogue No.	VQ-009167
CAS Number	100-20-9
IUPAC name	benzene-1,4-dicarbonyl chloride
Molecular formula	C₈H₄Cl₂O₂
Molecular weight	203.02 g/mol
Exact mass	201.9588
Grade	Synthesis
Purity / assay	99%
HSN code	29173600
InChIKey	LXEJRKJRKIFVNY-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1C(=O)Cl)C(=O)Cl
PubChem CID	7488

Physical properties
Physical form	Flakes
Appearance	White to off-white chunks chips or flakes
Melting point	79-81 °C
LogP (XLogP3)	4
H-bond donors / acceptors	0 / 2
TPSA	34.1 Å²
UN number	UN 2923
Synonyms	Terephthaloyl chloride, Terephthaloyl dichloride, p-Phthaloyl chloride, Terephthalic acid dichloride, Terephthalic dichloride, p-Phthaloyl dichloride, Terephthalyl dichloride, p-Phenylenedicarbonyl dichloride, 1,4-Benzenedicarbonyl chloride, 1,4-phthaloyl dichloride, Terephthalic acid chloride, p-Phthalyl dichloride

Safety & hazard information (GHS)

Corrosive

Toxic

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H331Toxic if inhaled

Precautionary statements: P260, P261, P264, P271, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, P403 + P233, 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

Frequently asked questions

What is the CAS number of Terphthaloyl chloride, 99%?

The CAS Registry Number of Terphthaloyl chloride, 99% is 100-20-9. It is also known as Terephthaloyl chloride, Terephthaloyl dichloride, p-Phthaloyl chloride.

What is the molecular formula and molecular weight of Terphthaloyl chloride, 99%?

Terphthaloyl chloride, 99% has the molecular formula C8H4Cl2O2 and a molecular weight of 203.02 g/mol. Its IUPAC name is benzene-1,4-dicarbonyl chloride.

Which grade and pack sizes of Terphthaloyl chloride, 99% can I order?

We supply Terphthaloyl chloride, 99% in Synthesis (99%) grade, in 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Terphthaloyl chloride, 99%?

Yes. Every lot of Terphthaloyl chloride, 99% 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 Terphthaloyl chloride, 99% be shipped internationally?

Yes. Terphthaloyl chloride, 99% is classified as hazardous (UN 2923), 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.