Description

2,1-Benzisothiazole-5-Carboxylicacid,3-Amino-(9Ci) is a high-purity, functionalized benzisothiazole derivative, a key heterocyclic building block in advanced organic synthesis. This compound matters for its role as a versatile intermediate in the development of novel active pharmaceutical ingredients (APIs) and specialty agrochemicals. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-inflammatory pathways.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides and fungicides, leveraging its heterocyclic core for bioactivity.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a building block for electron-transport materials or host materials in OLED device fabrication.
• Coordination Chemistry & Ligand Design: The amino and carboxylic acid functional groups make it a useful chelating ligand for metal complexes in catalytic and sensing applications.
• Dye & Pigment Intermediate: Employed in the synthesis of specialized heterocyclic dyes and functional pigments.
• Academic & Contract Research: A valuable reagent for methodological studies in organic chemistry and for custom synthesis projects in CROs (Contract Research Organizations).

Basic Information

Product Name	2,1-Benzisothiazole-5-Carboxylicacid,3-Amino-(9Ci)
CAS No.	749859-08-3
Molecular Formula	C8H6N2O2S
Molecular Weight	194.21 g/mol
Synonyms	3-Amino-1,2-benzisothiazole-5-carboxylic acid; 3-Amino-2,1-benzisothiazole-5-carboxylic acid; 5-Carboxy-1,2-benzisothiazol-3-amine; 3-Amino-5-carboxy-2,1-benzisothiazole; 1,2-Benzisothiazole-5-carboxylic acid, 3-amino-; 749859-08-3; 3-Amino-1,2-benzisothiazole-5-carboxylicacid
EINECS	Contact for details

Quality Control

Our 2,1-Benzisothiazole-5-Carboxylicacid,3-Amino-(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound may be hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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