Description

2-Butene-2,3-D2 (Gas) (Cis/Trans Mixture) is a deuterated isotopologue of 2-butene, specifically labeled at the 2 and 3 positions, supplied as a gaseous mixture of its cis and trans isomers. This compound is a critical reagent for mechanistic studies and spectroscopic analysis, providing a non-radioactive isotopic tracer for tracking reaction pathways and investigating kinetic isotope effects. It is essential for researchers and process developers in the fields of advanced organic synthesis, catalysis research, and analytical chemistry, where precise labeling is required to understand molecular behavior.

Application

• Mechanistic Reaction Studies: Used as a deuterium-labeled probe to elucidate reaction mechanisms, particularly in hydrogenation, isomerization, and metathesis reactions.
• Spectroscopic Standards & Calibration: Serves as a reference standard in NMR (Nuclear Magnetic Resonance) and IR (Infrared) spectroscopy due to its distinct isotopic signature.
• Catalysis Research & Development: Employed in testing and optimizing catalytic systems where the fate of hydrogen/deuterium atoms is critical to understanding catalyst performance.
• Kinetic Isotope Effect (KIE) Investigations: Fundamental for measuring KIE values, providing insights into transition states and rate-determining steps in chemical reactions.
• Polymer Science Research: Can be used in the study of polymerization mechanisms and the synthesis of labeled polymers for structural analysis.
• Pharmaceutical Intermediate Synthesis: Acts as a building block for the preparation of deuterated active pharmaceutical ingredients (APIs) and other fine chemicals.

Basic Information

Product Name	2-Butene-2,3-D2 (Gas) (Cis/Trans Mixture)
CAS No.	182249-78-1
Molecular Formula	C4H6D2
Molecular Weight	58.11 g/mol
Synonyms	2-Butene-2,3-d2; (Z/E)-2-Butene-2,3-d2; 2,3-Dideutero-2-butene; But-2-ene-2,3-d2; Deuterated 2-butene; 2-Butene-d2 (2,3); Isotopic 2-butene; 2-Butene (2,3-D2)
EINECS	Contact for details

Quality Control

Our 2-Butene-2,3-D2 is produced and handled under stringent conditions to ensure isotopic and chemical purity. Each batch is analyzed using advanced spectroscopic and chromatographic techniques. Certificates of Analysis (COA) are provided, detailing key parameters such as isotopic enrichment, isomeric ratio, and chemical purity. We adhere to ISO 9001 quality management principles, and specifications can be tailored to meet specific research or GMP-grade requirements.

Storage

Preserve in a tightly closed, appropriate pressure-rated container, protected from light and heat sources. Store in a cool, well-ventilated area, away from oxidizers and ignition sources. Due to its gaseous and potentially flammable nature, containers should be secured and handled in accordance with local regulations for compressed/liquefied gases.

Specification

Item	Specification
Appearance (Gas)	Colorless
Identification (IR / NMR)	Conforms to structure
Isotopic Enrichment (D)	≥ 98 atom % D
Chemical Purity (GC)	≥ 99.0%
Cis/Trans Isomer Ratio (GC)	Typically ~1:1 (Custom ratios available)
Major Impurities (GC)	≤ 0.5% total (Butenes, Alkanes)

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