Description

3H-Pyrazol-3-One,4,5-Dihydro-5-Methyl-4-Nitroso-(9Ci) is a specialized heterocyclic organic compound featuring a nitroso functional group on a pyrazolone core. This unique structure makes it a valuable intermediate in advanced organic synthesis, particularly for the development of pharmaceuticals and agrochemicals. It is primarily sought after by research and development chemists, process development scientists, and manufacturers in the fine chemical and life science industries for creating novel active compounds.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides, leveraging its reactive nitroso group.
• Chemical Synthesis Reagent: Serves as a versatile precursor for introducing the nitroso moiety into more complex molecular architectures.
• Material Science Research: Potential use in the development of specialty polymers or functional materials with unique photochemical properties.
• Academic & Industrial R&D: Employed in methodological studies and exploratory chemistry within university and corporate research laboratories.

Basic Information

Product Name	3H-Pyrazol-3-One,4,5-Dihydro-5-Methyl-4-Nitroso-(9Ci)
CAS No.	147738-83-8
Molecular Formula	C4H5N3O2
Molecular Weight	127.10 g/mol
Synonyms	4,5-Dihydro-5-methyl-4-nitroso-3H-pyrazol-3-one; 5-Methyl-4-nitroso-2-pyrazolin-5-one; 4-Nitroso-5-methyl-2-pyrazolin-5-one; 5-Methyl-4-nitroso-δ²-pyrazolin-5-one; 4-Nitroso-5-methyl-3-pyrazolone; 3H-Pyrazol-3-one, 4,5-dihydro-5-methyl-4-nitroso-
EINECS	Contact for details

Quality Control

Our production of 3H-Pyrazol-3-One,4,5-Dihydro-5-Methyl-4-Nitroso-(9Ci) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the exacting standards required for research and synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and specification compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong reducing agents. Due to its light-sensitive nature, handling and packaging are performed under low-light conditions to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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