C12H12ClNO2S
269.75 g/mol
Research ReagentDanger
Dansyl chloride
CAS605-65-2EC210-092-6
Category
Research Reagent
Compound Class
Amine
Primary Use
Research Compound
Dansyl chloride (This compound) is a fluorescent labeling reagent that reacts with primary and secondary amines to form stable blue- or blue-green fluorescent sulfonamide adducts. It is widely used in biochemical research for modifying amino acids, particularly in protein sequencing and amino acid analysis.
fluorescent labeling of aminesprotein sequencingamino acid analysis
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Safety Reference
Danger
H314Causes severe skin burns and eye damage
Customs Tariff Classification
The international HS code for Dansyl chloride (CAS 605-65-2) is 2921.45.
HS code (international, 6-digit)
2921.45
EU CN code (8-digit)
2921 45 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
5-(dimethylamino)naphthalene-1-sulfonyl chloride
InChIKey
XPDXVDYUQZHFPV-UHFFFAOYSA-N
SMILES
CN(C)C1=CC=CC2=C1C=CC=C2S(=O)(=O)Cl
Synonyms (23)
- DNS chloride
- DNS-Cl
- Dansyl
- Dansyl ChlorideDNSCl
- Dansyl chloride
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