Dansyl chloride, GR 99%

Name: Dansyl chloride, GR 99%
Brand: Vaqora Chemicals
SKU: VQ-002375

About Dansyl chloride, GR 99%

Dansyl chloride is a peptide synthesis reagent (AR grade) carrying the CAS registry number 605-65-2 with a typical assay of 99%. Its molecular formula is C12H12ClNO2S and its molecular weight is 269.75 g/mol. The IUPAC name is 5-(dimethylamino)naphthalene-1-sulfonyl chloride. Alternative names: DNSCl and DNS chloride.

It is supplied as a yellow-orange crystalline powder. Key physical data: a melting point of 72-74 °C. Keep the material at 2–8 °C and protect it from moisture. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

It is commonly used for peptide coupling, solid-phase peptide synthesis, bioconjugation and chromatography. Buyers come mainly from academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 1 g, 5 g and 25 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Peptide coupling
Solid-phase peptide synthesis
Bioconjugation
Chromatography

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Dansyl chloride, GR 99%
Catalogue No.	VQ-002375
CAS Number	605-65-2
IUPAC name	5-(dimethylamino)naphthalene-1-sulfonyl chloride
Molecular formula	C₁₂H₁₂ClNO₂S
Molecular weight	269.75 g/mol
Exact mass	269.0277
Grade	AR
Purity / assay	99%
HSN code	29214590
InChIKey	XPDXVDYUQZHFPV-UHFFFAOYSA-N
SMILES	CN(C)C1=CC=CC2=C1C=CC=C2S(=O)(=O)Cl
PubChem CID	11801

Physical properties
Physical form	Powder
Appearance	Yellow-orange crystalline powder
Melting point	72-74 °C
LogP (XLogP3)	3.5
H-bond donors / acceptors	0 / 3
TPSA	45.8 Å²
Storage	2–8 °C
UN number	UN 3261
Synonyms	DNSCl, DNS chloride, Dansyl, 5-(Dimethylamino)-1-naphthalenesulfonyl chloride, 1-Chlorosulfonyl-5-dimethylaminonaphthalene, Dansylchloride, 1-Dimethylaminonaphthalene-5-sulfonyl chloride, 5-Dimethylaminonaphthalene-1-sulphonyl chloride, Dimethylaminonaphthalenesulfonyl chloride, DNS-Cl, 5-(Dimethylamino)naphthalene-1-sulfonylchloride, 5-(N,N-dimethylamino)naphthalene-1-sulfonyl chloride

Safety & hazard information (GHS)

Corrosive

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements: P260, P264, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 605-65-2

Extra Pure

Dansyl chloride, extra pure >99%

CAS: 605-65-2
Formula: C₁₂H₁₂ClNO₂S
MW: 269.75 g/mol

VQ-045990

Frequently asked questions

What is the CAS number of Dansyl chloride, GR 99%?

The CAS Registry Number of Dansyl chloride, GR 99% is 605-65-2. It is also known as DNSCl, DNS chloride, Dansyl.

What is the molecular formula and molecular weight of Dansyl chloride, GR 99%?

Dansyl chloride, GR 99% has the molecular formula C12H12ClNO2S and a molecular weight of 269.75 g/mol. Its IUPAC name is 5-(dimethylamino)naphthalene-1-sulfonyl chloride.

Which grade and pack sizes of Dansyl chloride, GR 99% can I order?

We supply Dansyl chloride, GR 99% in AR (99%) grade, in 1 g, 5 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Dansyl chloride, GR 99%?

Yes. Every lot of Dansyl chloride, GR 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Dansyl chloride, GR 99% be shipped internationally?

Yes. Dansyl chloride, GR 99% is classified as hazardous (UN 3261), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should Dansyl chloride, GR 99% be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.