Description

2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Isobut-1-Enyl]-3-(4-Sulphonatobutyl)Benzothiazolium is a specialized benzothiazolium dye derivative, recognized for its distinct photophysical properties. This compound is valued for its role as a functional intermediate in the synthesis of advanced materials and as a key component in specialized analytical and imaging applications. It is primarily sought by R&D teams and production chemists in the photographic, optical materials, and analytical reagent sectors, where precise molecular structure and purity are critical for performance.

Application

• Sensitizing Dye for Silver Halide Photography: Used in the formulation of spectral sensitizers for photographic emulsions.
• Optical Data Storage Materials: A functional component in the development of advanced optical recording media.
• Laser Dye Intermediate: Serves as a precursor in the synthesis of dyes for tunable lasers and other photonic devices.
• Biomolecular Staining and Labeling: Potential application as a fluorescent probe or stain in biological imaging and diagnostics.
• Non-linear Optical (NLO) Materials: Investigated for use in the development of materials with specific light-modulating properties.
• Chemical Sensor Development: Utilized in research for creating selective sensors based on its chromogenic or fluorogenic response.

Basic Information

Item	Detail
Product Name	2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Isobut-1-Enyl]-3-(4-Sulphonatobutyl)Benzothiazolium
CAS No.	30457-66-0
Molecular Formula	C26H30N2O3S3- (Anion)
Molecular Weight	Approx. 514.72 g/mol (Free acid form)
Synonyms	Benzothiazolium, 2-[3-(3-ethyl-2(3H)-benzothiazolylidene)-1-methyl-1-propenyl]-3-(4-sulfobutyl)-, inner salt; 3-(4-Sulfobutyl)-2-[3-(3-ethyl-2-benzothiazolinylidene)-1-methyl-1-propenyl]benzothiazolium hydroxide, inner salt; NK 2012; Photographic sensitizing dye NK-2012; 3-Ethyl-2-[3-(3-ethyl-2(3H)-benzothiazolylidene)-1-methyl-1-propenyl]benzothiazolium 4-sulfobutyl betaine
EINECS	Contact for details

Quality Control

Our production of this specialty dye adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive (store away from light). Keep the container tightly sealed to protect from moisture and contamination.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Specific Absorbance	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.