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API Process Intermediates & Related Compounds

1,4-Dicyanobenzene

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1,4-Dicyanobenzene (CAS 623-26-7) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Quotes within one business day.

Pack sizes
1,4-Dicyanobenzene chemical structure
CAS number623-26-7
FormulaC8H4N2
Molar mass128.13 g/mol
Physical formSolid
HS code2933
InChIKeyBHXFKXOIODIUJO-UHFFFAOYSA-N
IUPAC namebenzene-1,4-dicarbonitrile

About 1,4-Dicyanobenzene

Zemixal supplies 1,4-Dicyanobenzene within its pharma Intermediates & Building Blocks portfolio. Identity at a glance: CAS 623-26-7, formula C8H4N2 and molar mass 128.13 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Safe handling

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Citalopram

See every impurity, metabolite and related compound we list for this API.

Citalopram standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Specifications and identifiers

Specifications of 1,4-Dicyanobenzene
Product name1,4-Dicyanobenzene
Catalogue numberZX-038962
CAS number623-26-7
IUPAC namebenzene-1,4-dicarbonitrile
Molecular formulaC8H4N2
Molar mass128.13 g/mol
Exact mass128.0374
Physical formSolid
XLogP30.9
H-bond donors / acceptors0 / 2
Topological polar surface area47.6 Ų
HS code2933
InChIKeyBHXFKXOIODIUJO-UHFFFAOYSA-N
SMILESC1=CC(=CC=C1C#N)C#N
PubChem CID12172
Synonyms4-Cyanobenzonitrile, 1,4-Benzodinitrile, p-Phthalodinitrile, p-Benzenedinitrile, Terephthalic acid dinitrile, Nitril kyseliny tereftalove, p-Dicyanobenzene, p-Pdn, para-dicyanobenzene, p-Cyanobenzonitrile, p-Phthalonitrile

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 1,4-Dicyanobenzene
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 1,4-Dicyanobenzene

Which CAS number identifies 1,4-Dicyanobenzene?
1,4-Dicyanobenzene is registered under CAS 623-26-7. You may also see it listed as 4-Cyanobenzonitrile, 1,4-Benzodinitrile, p-Phthalodinitrile. Our catalogue number for this item is ZX-038962.
What are the formula and molar mass of 1,4-Dicyanobenzene?
For 1,4-Dicyanobenzene, its formula is C8H4N2 and its molar mass is 128.13 g/mol. The systematic (IUPAC) name is benzene-1,4-dicarbonitrile. InChIKey BHXFKXOIODIUJO-UHFFFAOYSA-N lets you match it in any structure database.
How is 1,4-Dicyanobenzene used in pharmaceutical QC?
1,4-Dicyanobenzene is a characterised reference material linked to Citalopram. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 1,4-Dicyanobenzene?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 1,4-Dicyanobenzene?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 1,4-Dicyanobenzene to my country?
Yes. Because 1,4-Dicyanobenzene is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
(R)-Citadiol
CAS
481047-48-7
Formula
C20H23FN2O2
MW
342.4 g/mol
ZX-038961

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