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3-Hexyne-2,5-diol

CAS 3031-66-1CH3CH(OH)C≡CCH(OH)CH3Polymer Science

3-Hexyne-2,5-diol (CAS: 3031-66-1) is a diol featuring an internal alkyne. With a molecular weight of 114.14 g/mol, this compound is primarily utilised as a monomer in polymer science and materials science. Its unique structure allows for versatile chemical modifications, making it a valuable intermediate in organic synthesis and a building block for advanced materials.

Synonyms
CH3CH(OH)C≡CCH(OH)CH3
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3-Hexyne-2,5-diol (CH3CH(OH)C≡CCH(OH)CH3) — chemical structure, CAS 3031-66-1; Materials Science, fine chemical supplied by Tech Serve Solutions
AlcoholsMaterials ScienceMonomersPolymer Science
01 /Applications

Polymer Science

Serves as a monomer or co-monomer in the synthesis of specialty polymers, contributing unique structural and functional properties to the polymer backbone.

Materials Science

Acts as a building block for novel materials, enabling the development of advanced polymers with tailored characteristics for specific applications.

Organic Synthesis Intermediate

Utilised as a reactive intermediate in complex organic synthesis pathways, particularly where alkyne and diol functionalities are required.

02 /Properties
Molecular weight114.14
Linear formulaCH3CH(OH)C≡CCH(OH)CH3
Assay97%
Boiling point121 °C/15 mmHg(lit.)
Density1.009 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.473(lit.)
Melting point42 °C(lit.)
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
GHS hazard pictogram: Toxic (GHS06)
Toxic
Danger

Hazard statements

  • H301Toxic if swallowed
  • H318Causes serious eye damage

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P301IF SWALLOWED
  • P305IF IN EYES
Protective equipmentEyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Flash point123 °C / 253.4 °F
Transport (UN / ADR)UN 2811 6.1 / PGIII
Water hazard class (WGK, DE)2
Hazard codes (EU)T
Risk statements (R)25-36
Safety statements (S)26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
3031-66-1
MDL number
MFCD00004542
PubChem substance
24855055
Beilstein registry
1720667
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 3-Hexyne-2,5-diol used for?

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3-Hexyne-2,5-diol is used as a monomer in polymer science and materials science, and as an intermediate in organic synthesis.

What is the CAS number and formula for 3-Hexyne-2,5-diol?

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The CAS number is 3031-66-1 and the linear formula is CH3CH(OH)C≡CCH(OH)CH3.

What grade and purity does Tech Serve Solutions supply for 3-Hexyne-2,5-diol?

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Tech Serve Solutions supplies 3-Hexyne-2,5-diol with an assay of 97%. This is typically considered a technical or research grade, and we do not represent it as USP, BP, or EP grade.

What are the primary safety concerns when handling 3-Hexyne-2,5-diol?

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3-Hexyne-2,5-diol is classified as Dangerous (Signal Word: Danger) due to its corrosive nature and potential to cause serious eye damage (H318) and toxicity if swallowed (H301). Appropriate personal protective equipment, including eyeshields, face shields, and gloves, along with respiratory protection, is essential.

How is 3-Hexyne-2,5-diol typically packaged and shipped?

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3-Hexyne-2,5-diol is packaged according to industry standards for hazardous chemicals and can be exported globally by Tech Serve Solutions.

How can I request a sample or quote for 3-Hexyne-2,5-diol?

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Please contact our sales department through the website to request a sample or obtain a quotation for 3-Hexyne-2,5-diol.

Need 3-Hexyne-2,5-diol in a specific grade or volume?