1,4-Dicyanobenzene

Name: 1,4-Dicyanobenzene
Brand: Vaqora Chemicals
SKU: VQ-047805

About 1,4-Dicyanobenzene

1,4-Dicyanobenzene (CAS 623-26-7) is a process intermediate or related compound of Citalopram offered by Vaqora Chemicals. Formula C8H4N2, molecular weight 128.13 g/mol. Its systematic (IUPAC) name is benzene-1,4-dicarbonitrile. Alternative names: 4-Cyanobenzonitrile and 1,4-Benzodinitrile.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is a process intermediate or related compound in the synthesis of Citalopram, useful for route development, impurity fate-and-purge studies and analytical method development. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 1,4-Dicyanobenzene in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Citalopram

View every impurity, metabolite and intermediate we list for Citalopram.

Citalopram impurities

Specifications & identifiers

Chemical identifiers
Product name	1,4-Dicyanobenzene
Catalogue No.	VQ-047805
CAS Number	623-26-7
IUPAC name	benzene-1,4-dicarbonitrile
Molecular formula	C₈H₄N₂
Molecular weight	128.13 g/mol
Exact mass	128.0374
HSN code	2933
InChIKey	BHXFKXOIODIUJO-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1C#N)C#N
PubChem CID	12172

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	0 / 2
TPSA	47.6 Å²
Synonyms	4-Cyanobenzonitrile, 1,4-Benzodinitrile, p-Phthalodinitrile, p-Benzenedinitrile, Terephthalic acid dinitrile, Nitril kyseliny tereftalove, p-Dicyanobenzene, p-Pdn, para-dicyanobenzene, p-Cyanobenzonitrile, p-Phthalonitrile

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, 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 1,4-Dicyanobenzene?

The CAS Registry Number of 1,4-Dicyanobenzene is 623-26-7. It is also known as 4-Cyanobenzonitrile, 1,4-Benzodinitrile, p-Phthalodinitrile.

What is the molecular formula and molecular weight of 1,4-Dicyanobenzene?

1,4-Dicyanobenzene has the molecular formula C8H4N2 and a molecular weight of 128.13 g/mol. Its IUPAC name is benzene-1,4-dicarbonitrile.

What is 1,4-Dicyanobenzene used for?

1,4-Dicyanobenzene is supplied as a characterised reference material related to Citalopram. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 1,4-Dicyanobenzene can I order?

We supply 1,4-Dicyanobenzene, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1,4-Dicyanobenzene?

Yes. Every lot of 1,4-Dicyanobenzene 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 1,4-Dicyanobenzene be shipped internationally?

Yes. 1,4-Dicyanobenzene 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.