2-[4-(Dimethylamino)styryl]-1-methylquinolinium iodide

CAS 3915-61-5C20H21IN2Biochemicals & Reagents

2- [4-(Dimethylamino)styryl]-1-methylquinolinium iodide (CAS: 3915-61-5; Formula: C20H21IN2) is a fluorescent stain and probe utilized in biochemical research. With a molecular weight of 416.30 g/mol, this compound exhibits fluorescence properties with an excitation maximum of 463 nm and an emission maximum of 512 nm under specific buffer conditions. It is soluble in DMSO and methanol, making it a versatile reagent for various detection and labelling applications in life sciences.

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2-[4-(Dimethylamino)styryl]-1-methylquinolinium iodide (C20H21IN2) — chemical structure, CAS 3915-61-5; Life Science, fine chemical supplied by Tech Serve Solutions

Biochemicals and ReagentsDetectionFluorescent ProbesLabelsParticles and StainsFluorescent StainsNucleic Acid Stains

01 /Applications

Fluorescent Nucleic Acid Staining

This quinolinium iodide derivative serves as a fluorescent stain for nucleic acids. Its spectral properties allow for visualisation and analysis of DNA and RNA in various biological samples.

Flow Cytometry Staining

It is specifically categorised for use as a nucleic acid stain in flow cytometry applications. This enables the quantitative analysis of cellular DNA content and cell cycle distribution.

Fluorescent Labeling Reagent

The compound can be employed as a fluorescent probe for labelling biological molecules or structures. Its distinct fluorescence characteristics facilitate detection and imaging in research settings.

Biochemical Detection

As a biochemical reagent, it aids in various detection assays. Its fluorescence emission at 512 nm is useful for qualitative and quantitative assessments in biological research.

02 /Properties

Molecular weight	416.30
Empirical formula	C20H21IN2
Assay	≥98.0% (TLC)
Grade	for fluorescence
Solubility	DMSO: solublemethanol: soluble
Melting point	261 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

GHS hazard pictogram: Health hazard (GHS08) — Health hazard

Danger

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H360May damage fertility or the unborn child

Precautionary statements

P201Obtain special instructions before use
P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES
P308IF exposed or concerned

Protective equipment	Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Water hazard class (WGK, DE)	3
Hazard codes (EU)	T
Risk statements (R)	61-36/37/38
Safety statements (S)	53-26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

3915-61-5

MDL number

MFCD00031815

PubChem substance

24864575

Beilstein registry

6102208

05 /Additional specifications

Fluorescence	λex 463 nm; λem 512 nm in phosphate buffer/SDS pH 7.0

06 /Quality & supply

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.

07 /Frequently asked questions

What is 2-[4-(Dimethylamino)styryl]-1-methylquinolinium iodide used for?

This compound is primarily used as a fluorescent stain and probe for nucleic acids, particularly in applications like flow cytometry and general biochemical detection.

What is the CAS number and molecular formula?

The CAS number is 3915-61-5, and the molecular formula is C20H21IN2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this chemical with an assay of ≥98.0% (TLC) and a grade of 'for fluorescence'. We do not represent this product as USP, BP, or EP.

What are the primary safety concerns when handling this chemical?

This compound is labelled with GHS07 and GHS08 symbols and has a 'Danger' signal word. It carries hazard statements including H315 (Causes skin irritation), H319 (Causes serious eye irritation), H335 (May cause respiratory irritation), and H360 (May damage fertility or the unborn child). Always use appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (e.g., N100 respirator), and handle in a well-ventilated area.