Description

2,3-Butanedione, Mono(o-Methyloxime), (E)- (9Ci) is a specialized organic compound belonging to the class of oximes derived from diketones. This high-purity intermediate is valued for its role as a key building block in advanced organic synthesis, particularly in the production of fine chemicals and active pharmaceutical ingredients (APIs). It is essential for research and manufacturing chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality synthetic precursors.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a key precursor for synthesizing flavors, fragrances, and other high-value specialty chemicals.
• Chemical Research & Development: An important reagent in academic and industrial R&D for exploring new organic reactions and methodologies.
• Ligand and Chelating Agent Precursor: Utilized in the development of metal-organic frameworks (MOFs) and catalytic systems.

Basic Information

Product Name	2,3-Butanedione, Mono(o-Methyloxime), (E)- (9Ci)
CAS No.	69740-32-5
Molecular Formula	C5H9NO2
Molecular Weight	115.13 g/mol
Synonyms	(E)-2,3-Butanedione Mono(O-methyloxime); Diacetyl Mono(O-methyloxime); 2,3-Butanedione 2-(O-Methyloxime); 2-Butanone, 3-(methoxyimino)-; Butane-2,3-dione mono(O-methyloxime); (E)-1-(Methoxyimino)propan-2-one; 2,3-Dioxobutane O-methyloxime
EINECS	Contact for details

Quality Control

Our 2,3-Butanedione, Mono(o-Methyloxime), (E)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is light-sensitive and easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen or argon) to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.