Description

1,4-Cyclohexanedicarbonyl Dichloride, trans- (8Ci,9Ci) is a high-purity, stereochemically defined diacid chloride derivative of trans-1,4-cyclohexanedicarboxylic acid. This compound is a critical building block in advanced organic synthesis, prized for its rigid, aliphatic backbone that imparts enhanced thermal and chemical stability to final polymers and specialty chemicals. It is essential for R&D and production in the pharmaceutical, agrochemical, and high-performance polymer industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key monomer for synthesizing active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring rigid, lipophilic linkers.
• Polymer Chemistry: Serves as a co-monomer in the production of specialty polyamides, polyesters, and polyurethanes, enhancing thermal stability and mechanical properties.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Acts as a precursor for diamine and diol derivatives used in electronic display materials.
• Cross-linking Agent: Employed in coatings, adhesives, and resins to improve hardness, chemical resistance, and durability.
• Organic Synthesis Reagent: A versatile reagent for introducing the trans-1,4-cyclohexanedicarbonyl moiety into complex molecules via amidation or esterification reactions.

Basic Information

Product Name	1,4-Cyclohexanedicarbonyl Dichloride, trans- (8Ci,9Ci)
CAS No.	19988-54-6
Molecular Formula	C8H10Cl2O2
Molecular Weight	209.07 g/mol
Synonyms	trans-1,4-Cyclohexanedicarbonyl Dichloride; trans-Hexahydroterephthaloyl Chloride; trans-1,4-Cyclohexanedicarboxylic Acid Dichloride; trans-Cyclohexane-1,4-dicarbonyl Dichloride; 1,4-trans-Cyclohexanedicarboxylic Acid Chloride; (1r,4r)-Cyclohexane-1,4-dicarbonyl Dichloride; (trans)-1,4-Cyclohexanedicarboxylic Acid Dichloride
EINECS	243-416-8

Quality Control

Our 1,4-Cyclohexanedicarbonyl Dichloride, trans- is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing including HPLC, GC, NMR, and FTIR to confirm identity, purity, and isomeric composition. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, ensuring compliance with your internal specifications and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts violently with water, strong bases, and alcohols. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isomeric Purity (trans-)	≥ 99.0%
Water Content (KF)	≤ 0.5%
Acid Chloride Content	≥ 97.0%
Melting Point	Contact for details

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