Description

(Z)-1,2-Dichloro-2-Butene is a highly reactive chlorinated alkene intermediate with a defined stereochemistry. This compound is valued for its role as a versatile building block in the synthesis of more complex organic molecules, particularly in fine chemical and pharmaceutical manufacturing. It is primarily sought after by R&D chemists and process development teams in the agrochemical, pharmaceutical, and specialty chemical industries for constructing specific molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the production of active pharmaceutical ingredients (APIs), especially those requiring specific chlorinated alkene motifs.
• Agrochemical Synthesis: Used in the manufacture of pesticides, herbicides, and fungicides where its reactive dichloroalkene structure serves as a core component.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, nucleophilic substitution, and other coupling reactions to introduce functionalized butene units.
• Polymer & Resin Modifier: Acts as a cross-linking agent or a monomer in the synthesis of specialty polymers and resins.
• Chemical Research & Development: A valuable reagent for academic and industrial research exploring new synthetic methodologies and compound libraries.
• Flavor & Fragrance Ingredient Synthesis: Used as a precursor in the multi-step synthesis of complex aroma chemicals.

Basic Information

Product Name	(Z)-1,2-Dichloro-2-Butene
CAS No.	26310-41-8
Molecular Formula	C4H6Cl2
Molecular Weight	124.99 g/mol
Synonyms	(Z)-1,2-Dichlorobut-2-ene; cis-1,2-Dichloro-2-butene; 1,2-Dichloro-2-butene (Z)-; 2-Butene, 1,2-dichloro-, (Z)-; (Z)-1,2-Dichlorobutene; cis-1,2-Dichlorobut-2-ene; 1,2-Dichloro-cis-2-butene; NSC 60549
EINECS	247-148-4

Quality Control

Our (Z)-1,2-Dichloro-2-Butene is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high chemical purity and isomeric integrity. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO 9001 standards for manufacturing critical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place away from heat, sparks, and open flame. Due to its highly volatile nature, containers must be kept tightly sealed and upright to prevent leakage and vapor accumulation. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong bases and reactive metals.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 97.0% (Area %)
(Z)-Isomer Content (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	1.18 - 1.22 g/mL
Refractive Index (n20D)	1.468 - 1.472

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