4-(Dimethylamino)azobenzene-4′-sulfonyl chloride

CAS 56512-49-3(CH3)2NC6H4N=NC6H4SO2ClBiochemicals & Reagents

4-(Dimethylamino)azobenzene-4′-sulfonyl chloride (CAS 56512-49-3) is a specialized chemical reagent with the linear formula (CH₃)₂NC₆H₄N=NC₆H₄SO₂Cl and a molecular weight of 323.80 g/mol. It is primarily utilised in analytical chemistry for the derivatization of amino acids and amines, enabling their sensitive detection and quantification via techniques such as HPLC. This compound plays a crucial role in biochemical research and peptide analysis.

IUPAC: 4-(4-Dimethylaminophenylazo)benzenesulfonyl chloride,DABS-Cl,Dabsyl chloride
Synonyms: DABS-ClDabsyl chloride

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4-(Dimethylamino)azobenzene-4′-sulfonyl chloride ((CH3)2NC6H4N=NC6H4SO2Cl) — chemical structure, CAS 56512-49-3; Life Science, fine chemical supplied by Tech Serve Solutions

Amino Acid AnalysisAnalytical ReagentsAnalytical/ChromatographyBiochemicals and ReagentsDerivatization ReagentsDerivatization Reagents HPLCPeptidesRegents for amino

01 /Applications

Amino Acid Analysis

This reagent is employed for both qualitative and quantitative identification of amino acids. It is also used for the determination of N-terminal amino acids in peptide sequencing.

Amine Determination by HPLC

4-(Dimethylamino)azobenzene-4′-sulfonyl chloride is valuable for the determination of primary and secondary amines using High-Performance Liquid Chromatography (HPLC) methods.

Peptide Characterization

The compound aids in the detailed analysis and characterization of peptides, contributing to a better understanding of their structure and function.

02 /Properties

Molecular weight	323.80
Linear formula	(CH3)2NC6H4N=NC6H4SO2Cl
Assay	≥97.5% (AT)
Solubility	DMF: solubleacetonitrile: soluble
Application	For the qualitative and quantitative identification of amino acids and for the determination of N-terminal amino acids.1,2,3 Used in the determination of primary and secondary amines by HPLC.4
Melting point	185 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 3261 8 / PGII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

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

04 /Identifiers & registry

CAS number

56512-49-3

MDL number

MFCD00007444

PubChem substance

24864337

Beilstein registry

3064095

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 4-(Dimethylamino)azobenzene-4′-sulfonyl chloride used for?

4-(Dimethylamino)azobenzene-4′-sulfonyl chloride is used for the qualitative and quantitative identification of amino acids, the determination of N-terminal amino acids, and for the determination of primary and secondary amines by HPLC.

What is the CAS number and chemical formula for this product?

The CAS number is 56512-49-3 and the linear formula is (CH₃)₂NC₆H₄N=NC₆H₄SO₂Cl.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this product with an assay of ≥97.5% (AT). This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.

How should 4-(Dimethylamino)azobenzene-4′-sulfonyl chloride be handled safely?

This compound is classified as corrosive, causing severe skin burns and eye damage (H314). Handle with appropriate personal protective equipment, including eyeshields, face shields, and gloves. Ensure adequate ventilation and use respiratory protection if necessary. Refer to the safety data sheet for comprehensive handling instructions.

How is this chemical packed, shipped, and exported?

This chemical is packed according to international shipping regulations, including UN 3261 classification for corrosive solids, acidic, organic, n.o.s. Tech Serve Solutions is a specialist global supplier and exporter.

How can I request a sample or quote?

To request a sample or a quote, please contact the Tech Serve Solutions sales team through our website or by phone, providing your details and the product CAS number 56512-49-3.