39255

4-Dimethylamino-4′-nitrostilbene

≥99.8% (T)

• Synonym(s): N,N-Dimethyl-4′-nitro-4-stilbenamine, DANS
• Linear Formula: (CH₃)₂NC₆H₄CH=CHC₆H₄NO₂
• CAS Number: 2844-15-7
• Molecular Weight: 268.31
• UNSPSC Code: 12352108
• NACRES: NA.32
• PubChem Substance ID: 57649889
• MDL number: MFCD00041877
• Beilstein/REAXYS Number: 1379389

Properties

• Quality Segment: 200
• assay: ≥99.8% (T)
• form: solid
• mp: 256-259 °C
• fluorescence: λ_ex 500 nm; λ_em ~700 nm in methylene chloride
• SMILES string: CN(C)c1ccc(\C=C\c2ccc(cc2)[N+]([O-])=O)cc1
• InChI: 1S/C16H16N2O2/c1-17(2)15-9-5-13(6-10-15)3-4-14-7-11-16(12-8-14)18(19)20/h3-12H,1-2H3/b4-3+
• InChI key: NVLSIZITFJRWPY-ONEGZZNKSA-N

Description

Application

4-Dimethylamino-4′-nitrostilbene (DANS, DMANS) may be used as a proton/acid indicator and physical chemistry probe to study state energy and photoexcitation dynamics of molecules.

Other Notes

Standard for the correction of emission of fluorescence spectrometers

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Codes: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• PPE (personal protective equipment): dust mask type N95 (US), Eyeshields, Gloves