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Sigma-Aldrich

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

≥97.5% (AT)

Synonym(s):

4-(4-Dimethylaminophenylazo)benzenesulfonyl chloride, DABS-Cl, Dabsyl chloride

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About This Item

Linear Formula:
(CH3)2NC6H4N=NC6H4SO2Cl
CAS Number:
Molecular Weight:
323.80
Beilstein:
3064095
EC Number:
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.25

Quality Level

Assay

≥97.5% (AT)

mp

185 °C (dec.) (lit.)

solubility

DMF: soluble
acetonitrile: soluble

SMILES string

CN(C)c1ccc(cc1)\N=N\c2ccc(cc2)S(Cl)(=O)=O

InChI

1S/C14H14ClN3O2S/c1-18(2)13-7-3-11(4-8-13)16-17-12-5-9-14(10-6-12)21(15,19)20/h3-10H,1-2H3/b17-16+

InChI key

VTVWTPGLLAELLI-WUKNDPDISA-N

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General description

Dabsyl chloride (4-dimethylaminoazobenzene-4′-sulfonyl chloride) is a chromophoric labeling reagent used in HPLC for derivatizing amino acids. It reacts freely with all amino acids in order to form dabsyl amino acids, which are photostable and can be seen on a thin-layer chromatographic plate.

Application

For the qualitative and quantitative identification of amino acids and for the determination of N-terminal amino acids. Used in the determination of primary and secondary amines by HPLC.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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