Certificate of Analysis

 

Product Name: Dansyl chloride
Catalog Number: M39660
CAS Number: 605-65-2

Physical and Chemical Properties
Formula: C12H12ClNO2S
Molecular Weight: 269.75
Form: Solid
Solubility: DMSO 4 mg/mL (ultrasonic and warming)
Storage: 4°C, protect from light, sealed
Chemical Structure: Dansyl chloride Structure
Analytical Data
QC Standard: >98.0%
H-NMR: Consistent with structure
Product Information
Description: Dansyl chloride is a reagent that reacts with primary amino groups in both aliphatic and aromatic amines to produce stable blue- or blue-green-fluorescent sulfonamide adducts. Dansyl chloride is widely used to modify amino acids; specifically, protein sequencing and amino acid analysis. It can also be used to label hydroxyl and carboxylic acid functional groups.
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.