4-Dimethylamino-4′-nitrostilbene
4-Dimethylamino-4′-nitrostilbene (CAS: 2844-15-7) is a specialised organic compound with the molecular formula (CH3)2NC6H4CH=CHC6H4NO2 and a molar mass of 268.31 g/mol. This compound is recognised for its utility as a proton/acid indicator and as a physical chemistry probe. It is employed to investigate the state energy and photoexcitation dynamics of various molecular systems. Tech Serve Solutions offers this product with a high purity assay of ≥99.8%.
- IUPAC
- N,N-Dimethyl-4′-nitro-4-stilbenamine,DANS
- Synonyms
- DANSDMANSN,N-Dimethyl-4′-nitro-4-stilbenamine
Proton/Acid Indicator
4-Dimethylamino-4′-nitrostilbene functions as a sensitive indicator for protons or acidity levels in chemical systems. Its distinct properties allow for visual or spectroscopic detection of pH changes.
Physical Chemistry Probe
This compound serves as a valuable probe in physical chemistry research. It is used to study the energetic states and photoexcitation dynamics of molecules, providing insights into their behaviour under light.
Fluorescent Labeling
As a fluorescent compound, it can be utilized in various detection and labelling applications where its spectral properties are advantageous.
| Molecular weight | 268.31 |
|---|---|
| Linear formula | (CH3)2NC6H4CH=CHC6H4NO2 |
| Assay | ≥99.8% (T) |
| 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. |
| Melting point | 256-259 °C(lit.)256-259 °C |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Fluorescence | λex 500 nm; λem ~700 nm in methylene chloride |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Dimethylamino-4′-nitrostilbene used for?
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4-Dimethylamino-4′-nitrostilbene (CAS: 2844-15-7) is primarily used as a proton/acid indicator and a physical chemistry probe to study molecular state energy and photoexcitation dynamics.
What are the CAS number and chemical formula for 4-Dimethylamino-4′-nitrostilbene?
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The CAS number for 4-Dimethylamino-4′-nitrostilbene is 2844-15-7. Its linear chemical formula is (CH3)2NC6H4CH=CHC6H4NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Dimethylamino-4′-nitrostilbene with an assay of ≥99.8% (T). We do not represent this product as meeting any specific pharmacopoeia standards such as USP, BP, or EP unless explicitly stated.
What are the safety considerations when handling 4-Dimethylamino-4′-nitrostilbene?
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This compound is classified with GHS07 and a 'Warning' signal word, indicating it causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, is essential. Handle in a well-ventilated area.
Does Tech Serve Solutions export 4-Dimethylamino-4′-nitrostilbene?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 4-Dimethylamino-4′-nitrostilbene.
How can I request a quote or sample?
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To request a quote or sample of 4-Dimethylamino-4′-nitrostilbene, please contact our sales department through the website or by phone. Our team will be pleased to assist you.
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