Description

5H-Pyrazolo[3,4-D]-1,2,3-Thiadiazole-6-Carbonyl Chloride, 5-Methyl- (9Ci) is a high-value heterocyclic building block and key synthetic intermediate. This compound matters for its role in constructing complex molecular architectures, particularly in advanced pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the life sciences sector for creating novel active ingredients.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with unique modes of action.
• Material Science: Serves as a building block for advanced polymers and functional materials with specialized properties.
• Chemical Biology: Employed in the creation of molecular probes and tools for studying biological processes.
• Custom Synthesis: A key starting material for contract research organizations (CROs) and CDMOs producing bespoke compounds for clients.

Basic Information

Product Name	5H-Pyrazolo[3,4-D]-1,2,3-Thiadiazole-6-Carbonyl Chloride, 5-Methyl- (9Ci)
CAS No.	98206-21-4
Molecular Formula	C6H3ClN4OS
Molecular Weight	214.63 g/mol
Synonyms	5-Methyl-5H-pyrazolo[3,4-d][1,2,3]thiadiazole-6-carbonyl chloride; 5-Methyl-5H-[1,2,3]thiadiazolo[3,4-c]pyrazole-6-carbonyl chloride; 5-Methylpyrazolo[3,4-d]-1,2,3-thiadiazole-6-carbonyl chloride; 98206-21-4; 5-Methyl-5H-pyrazolo[3,4-d][1,2,3]thiadiazole-6-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our 5H-Pyrazolo[3,4-D]-1,2,3-Thiadiazole-6-Carbonyl Chloride, 5-Methyl- (9Ci) is produced 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 development. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
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.