1,4-Cyclohexanedimethanol (CAS 105-08-8) is a cycloaliphatic glycol and high-molecular-weight diol primarily utilized as a specialized monomer for modifying the backbone of polyester resins (such as PETG and PCT) to enhance clarity and toughness. This 1,4-Bis(hydroxymethyl)cyclohexane compound functions as a chain extender that disrupts polymer crystallization in Cyclohexane-1,4-dimethanol derived formulations, thereby improving the impact resistance, hydrolytic stability, and processability of transparent engineering plastics and high-performance coil coatings. To support industrial-scale requirements, we provide bulk supply with competitive factory pricing and ensure rigorous quality control through customized specifications alongside standard technical documentation, including MSDS, TDS, COA.
1,4-Cyclohexanedimethanol CAS 105-08-8
- CAS: 105-08-8
- Synonyms: 1,4-Bis(hydroxymethyl)cyclohexane, Cyclohexane-1,4-dimethanol, CHDM-D, 1,4-Dimethylolcyclohexane, Hexahydro-p-xylylene glycol
- Einecs: 203-268-9
- Molecular Formula: C8H16O2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
1,4-cyclohexane dimethanol (CAS number: 105-08-8) is an organic compound with a chemical formula of C8H16O2 and a white waxy solid at room temperature. Its cis and trans structures have melting points of 43°C and 70°C, boiling points of 286°C, and density of 1.04g/cm³, which are miscible with water and low-grade alcohols, but insoluble in aliphatic hydrocarbons and ether. The substance has low toxicity, with an oral LDL0 of 3200 mg/kg in rats and 1600 mg/kg in mice, and may release irritating fumes when decomposed by heat.
synonyms:CHDM; 1,4-CHDM; 1,4-Cyclohexanedimet; 1,4-Cyclohexanedimethanol; 1,4-DIMETHYLOLCYCLOHEXANE; Cyclohexane-1,4-dimethanol; 1,4-Cyclohexanebismethanol [1]
CAS：105-08-8
CBNumber:CB9282276
Molecular weight:144.21
Melting point: 31.5°C
Density: 1.04g/cm3
Vapor density: 5 (vs air)
Flash point: 322°F
White waxy solid. Melting point 43°C (cis), 70°C (trans). Boiling point 286°C. Relative density 1.150 (20/4°C). The sublimation temperature is 160°C, miscible with water and alcohol, soluble in ketones, almost insoluble in aliphatic hydrocarbons and ether.
use
Used in manufacturing Polyester, polyester electrical appliances,Unsaturated polyester resin, polyester glaze,Polyurethane foam, and for the production of lubricants and hydraulic fluids.
FAQ - Technical & Supply Chain
-
Q:
Is 1,4-Cyclohexanedimethanol (CAS 105-08-8) supplied as a specific isomer or a mixture?
A: Industrial supply is typically a controlled mixture of cis- and trans-isomers (C8H16O2) designed to provide the optimal melting point range and reactivity for polymerization processes. -
Q:
What is the primary benefit of adding CHDM to polyethylene terephthalate (PET) synthesis?
A: It acts as a glycol modifier that prevents crystallization, converting standard PET into amorphous PETG, which offers superior clarity, thermoforming capabilities, and impact strength.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
