Description

4-Bromo-2-tert-Butyl-1,1-Dioxo-1,2-Dihydroisothiazol-3-One is a specialized brominated isothiazolone derivative, a high-value intermediate prized for its potent electrophilic reactivity. This compound matters for its role in synthesizing advanced materials and active pharmaceutical ingredients (APIs), where its unique structure enables precise chemical modifications. It is primarily needed by research chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• As a key building block in the synthesis of novel pharmaceutical candidates, particularly those requiring bromine incorporation.
• An intermediate for manufacturing advanced agrochemicals, including fungicides and herbicides.
• Utilized in polymer chemistry as a functional monomer or cross-linking agent for specialty polymers.
• Employed in material science research for developing functional surfaces and coatings.
• Serves as a reactive precursor in organic synthesis for creating sulfonamide and heterocyclic compounds.
• Used in bioconjugation chemistry for labeling biomolecules.

Basic Information

Product Name	4-Bromo-2-tert-Butyl-1,1-Dioxo-1,2-Dihydroisothiazol-3-One
CAS No.	126623-65-2
Molecular Formula	C7H10BrNO3S
Molecular Weight	268.13 g/mol
Synonyms	4-Bromo-2-tert-butyl-1,2-dihydro-1,1-dioxoisothiazol-3-one; 2-tert-Butyl-4-bromo-1,2-dihydro-1,1-dioxoisothiazol-3-one; 4-Bromo-2-(tert-butyl)-1,2-dihydro-1,1-dioxoisothiazol-3-one; 3(2H)-Isothiazolone, 4-bromo-2-(1,1-dimethylethyl)-1,1-dioxide; 4-Bromo-2-tert-butylisothiazol-3(2H)-one 1,1-dioxide; BTBDO; Brominated tert-Butyl Isothiazolone Dioxide
EINECS	Contact for details

Quality Control

Our 4-Bromo-2-tert-Butyl-1,1-Dioxo-1,2-Dihydroisothiazol-3-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. The container must be kept tightly closed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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