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p-Phenylene diisothiocyanate

CAS 4044-65-9C6H4(NCS)2Chemical Synthesis

p-Phenylene diisothiocyanate (CAS 4044-65-9), with the molecular formula C6H4(NCS)2 and a molecular weight of 192.26, is a valuable reagent in chemical synthesis and biology. It serves as a crosslinker and linker, particularly useful in peptide chemistry and for conjugating biomolecules. Its difunctional nature allows for the formation of stable linkages, making it instrumental in various analytical and synthetic applications.

IUPAC
1,4-Diisothiocyanatobenzene,Bitoscanate,PDITC
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p-Phenylene diisothiocyanate (C6H4(NCS)2) — chemical structure, CAS 4044-65-9; Chemistry, fine chemical supplied by Tech Serve Solutions
Chemical BiologyChemical SynthesisCrosslinkersLinkers and CrosslinkersPeptide ChemistryProduct Analysis More...
01 /Applications

Peptide Chemistry

p-Phenylene diisothiocyanate is employed in peptide synthesis and modification. Its ability to react with amino groups allows for crosslinking peptides or attaching them to solid supports and other molecules.

Bioconjugation

This compound acts as a heterobifunctional crosslinker, enabling the covalent attachment of proteins, antibodies, or other biomolecules to surfaces, beads, or other labeling agents for diagnostic or research purposes.

Chemical Synthesis

As a difunctional reagent, it participates in the synthesis of various heterocyclic compounds and polymers. It is a key intermediate for creating more complex organic molecules.

Product Analysis

Used in analytical chemistry, it can facilitate derivatization of analytes containing primary amine groups, enhancing their detectability or separability in chromatographic methods.

02 /Properties
Molecular weight192.26
Linear formulaC6H4(NCS)2
Assay98%
Melting point129-131 °C(lit.)
03 /Safety & handling
GHS hazard pictogram: Toxic (GHS06)
Toxic
GHS hazard pictogram: Health hazard (GHS08)
Health hazard
Danger

Hazard statements

  • H301Toxic if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H334May cause allergy or asthma symptoms if inhaled
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P301IF SWALLOWED
  • P305IF IN EYES
  • P342
Protective equipmentdust mask type N95 (US), Eyeshields, Faceshields, Gloves
Transport (UN / ADR)UN 2811 6.1 / PGIII
Water hazard class (WGK, DE)3
Hazard codes (EU)Xn
Risk statements (R)22-36/37/38-42
Safety statements (S)22-26-36/37

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
4044-65-9
MDL number
MFCD00004811
PubChem substance
24855647
Beilstein registry
2414340
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is p-Phenylene diisothiocyanate used for?

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p-Phenylene diisothiocyanate is primarily used in chemical biology and chemical synthesis as a crosslinker and linker, particularly in peptide chemistry and for bioconjugation and product analysis.

What are the CAS number and formula for p-Phenylene diisothiocyanate?

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The CAS number is 4044-65-9, and the molecular formula is C6H4(NCS)2.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies p-Phenylene diisothiocyanate with an assay of 98%. This product is intended for research and technical use; TSS does not represent it as USP, BP, EP, or other pharmacopoeia grades.

How should p-Phenylene diisothiocyanate be handled safely?

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Handle with appropriate personal protective equipment including a dust mask type N95, eyeshields, face shield, and gloves. Avoid inhalation of dust and contact with skin and eyes. It is a toxic substance and an irritant.

How is p-Phenylene diisothiocyanate packed and exported?

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p-Phenylene diisothiocyanate is packed according to international regulations for hazardous materials and is exported globally by Tech Serve Solutions.

How can I request a quote or sample for p-Phenylene diisothiocyanate?

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To request a quote or a sample, please contact the Tech Serve Solutions sales team through our website or by phone.

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