DAR-1

CAS 261351-43-3C28H32N4O3Biochemicals & Reagents

DAR-1 (CAS 261351-43-3), with the molecular formula C28H32N4O3 and a molecular weight of 472.58, is a biochemical reagent primarily utilised as a fluorescent nitric oxide (NO) sensor. Its specific fluorescence properties, with an excitation wavelength of 566 nm and an emission wavelength of 586 nm, make it valuable in biological research for detecting NO. The compound is supplied by Tech Serve Solutions with an assay of ≥97.0% (HPCE).

IUPAC: 4,5-Diamino-rhodamine B,4,5-Diamino-N,N,N′,N′-tetraethylrhodamine
Synonyms: 4,5-Diamino-rhodamine B,4,5-Diamino-N,N,N′,N′-tetraethylrhodamine

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DAR-1 (C28H32N4O3) — chemical structure, CAS 261351-43-3; Life Science, fine chemical supplied by Tech Serve Solutions

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01 /Applications

Fluorescent Nitric Oxide Sensing

DAR-1 functions as a fluorescent probe specifically designed for the detection of nitric oxide (NO). Its spectral properties allow for sensitive optical measurements of NO levels in biological systems.

Biochemical Research Reagent

As a biochemical and reagent, DAR-1 is suitable for various fluorescence-based assays. It is employed in research settings to investigate cellular processes involving NO signalling.

Fluorescent Labeling Applications

The compound can be considered for applications requiring fluorescent labeling, particularly where NO detection is critical. Its properties lend themselves to studying NO-related pathways.

02 /Properties

Molecular weight	472.58
Empirical formula	C28H32N4O3
Assay	≥97.0% (HPCE)
Storage temperature	2-8°C
Application	suitable as fluorescent NO-sensor
Suitability	suitable for fluorescence

03 /Safety & handling

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

Warning

Hazard statements

H302Harmful if swallowed
H319Causes serious eye irritation

Precautionary statements

P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xn
Risk statements (R)	22

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

04 /Identifiers & registry

CAS number

261351-43-3

MDL number

MFCD07370097

05 /Additional specifications

Product Line	BioReagent
Fluorescence	λex 566 nm; λem 586 nm in 0.1 M phosphate pH 7.4, NO

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 DAR-1 used for?

DAR-1 is used as a fluorescent sensor for nitric oxide (NO) and as a general biochemical reagent for fluorescence-based applications in research.

What is the CAS number and molecular formula for DAR-1?

The CAS number for DAR-1 is 261351-43-3, and its molecular formula is C28H32N4O3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies DAR-1 with an assay of ≥97.0% (HPCE). We do not represent this product as USP, BP, or EP grade.

What are the safety precautions for handling DAR-1?

DAR-1 is classified with GHS07 and a 'Warning' signal word. It carries hazard statements H302 (Harmful if swallowed) and H319 (Causes serious eye irritation). Use personal protective equipment including a dust mask type N95 (US), eyeshields, and gloves. Avoid contact and ensure proper ventilation.