1,4-Bis(2-hydroxyethoxy)-2-butyne
1,4-Bis(2-hydroxyethoxy)-2-butyne (CAS: 1606-85-5) is a valuable organic building block with the molecular formula C8H14O4 and a molecular weight of 174.19 g/mol. This compound features a central alkyne moiety flanked by ethoxyethanol groups. It is primarily utilised in chemical synthesis as a versatile intermediate for the construction of more complex molecules, offering unique reactivity for various organic transformations.
- Synonyms
- HOCH2CH2OCH2C≡CCH2OCH2CH2OH

Organic Synthesis Intermediate
1,4-Bis(2-hydroxyethoxy)-2-butyne serves as a key intermediate in organic synthesis. Its difunctional nature, with both alkyne and hydroxyl groups, allows for diverse chemical modifications and chain extensions.
Polymer Chemistry
The terminal hydroxyl groups and the internal alkyne functionality make this compound suitable for incorporation into polymer backbones or side chains, potentially yielding materials with specific thermal or mechanical properties.
Specialty Chemical Manufacturing
This alkyne derivative is employed in the synthesis of specialised organic molecules and fine chemicals for research and development purposes. Its unique structure can be leveraged to introduce rigidity and specific functionalisation into target compounds.
| Molecular weight | 174.19 |
|---|---|
| Linear formula | HOCH2CH2OCH2C≡CCH2OCH2CH2OH |
| Assay | 85% |
| Density | 1.144 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.485(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is 1,4-Bis(2-hydroxyethoxy)-2-butyne used for?
+
1,4-Bis(2-hydroxyethoxy)-2-butyne is primarily used as a versatile intermediate in organic synthesis and for the creation of specialised chemical compounds and polymers.
What are the CAS number and molecular formula for 1,4-Bis(2-hydroxyethoxy)-2-butyne?
+
The CAS number for 1,4-Bis(2-hydroxyethoxy)-2-butyne is 1606-85-5, and its molecular formula is C8H14O4.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1,4-Bis(2-hydroxyethoxy)-2-butyne with an assay of 85%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the safety and handling considerations for this chemical?
+
This compound is classified as an irritant (H315, H319, H335) and requires appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection. Always consult the Safety Data Sheet (SDS) before handling.
How is 1,4-Bis(2-hydroxyethoxy)-2-butyne typically packed and shipped?
+
Tech Serve Solutions ensures chemicals are securely packed according to international shipping regulations for safe export worldwide. Specific packing details are available upon request.
How can I request a sample or obtain a quote for 1,4-Bis(2-hydroxyethoxy)-2-butyne?
+
To request a sample or a quote, please contact our sales team through the website or by phone, providing the product name and CAS number (1606-85-5).
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis