Buy 1,4-Butanediol (BDO) CAS 110-63-4 — Industrial Grade Chemical Intermediate

Buy 1,4-Butanediol (BDO) CAS 110-63-4 — Industrial Grade Chemical Intermediate
1,4-Butanediol (BDO) CAS 110-63-4 — Industrial Grade Chemical Intermediate | UAB An Group Export
1,4-Butanediol (BDO) is one of the most strategically 
important chemical intermediates in global industrial 
manufacturing — a four-carbon diol compound that 
serves as the direct upstream precursor to three 
of the most commercially significant industrial 
chemicals in the world: Tetrahydrofuran (THF), 
Gamma-Butyrolactone (GBL), and polybutylene 
terephthalate (PBT). The global BDO market exceeds 
several billion USD annually and continues to grow 
driven by increasing demand for polyurethanes, 
biodegradable plastics, specialty solvents, and 
elastic fibre systems.

For procurement teams sourcing GBL, THF, or specialty 
polyesters, understanding BDO supply dynamics is 
a strategic advantage. BDO is simultaneously a 
standalone industrial chemical with its own direct 
applications and the essential feedstock for an 
entire downstream chain of high-value industrial 
chemicals and polymer systems.

UAB An Group Export supplies industrial-grade BDO 
to verified buyers worldwide with full documentation 
and reliable international delivery.

Chemical Properties & Technical Specifications

CAS Number: 110-63-4
Other Names: BDO, 1,4-BD, Butane-1,4-diol,
             Tetramethylene Glycol, 1,4-Dihydroxybutane
Molecular Formula: C4H10O2
Molar Mass: 90.12 g/mol
Physical Form: Liquid (may solidify below 20.1 deg C)
Appearance: Colourless, clear, viscous liquid
Odour: Mild, slightly sweet characteristic odour
Density: 1.017 g/cm3 at 20 deg C
Boiling Point: 228 deg C (442 deg F)
Melting Point: 20.1 deg C (68 deg F)
Flash Point: 121 deg C (250 deg F)
Vapour Pressure: <0.1 hPa at 20 deg C
Refractive Index: 1.445 - 1.447
Viscosity: 71.5 mPa.s at 20 deg C
Solubility: Fully miscible with water, ethanol,
            acetone, and most polar solvents
Log Pow (octanol/water): -0.44
Purity: >=99.5% (industrial grade)
Water Content: <0.05%
UN Number: Not classified as dangerous goods for
           standard transport

BDO as a Chemical Intermediate — The Downstream Chain

One of BDO's most important commercial characteristics 
is its role as the upstream feedstock for multiple 
high-value industrial chemicals. Understanding this 
downstream chain is essential for procurement teams 
evaluating BDO supply:

BDO to Tetrahydrofuran (THF)
BDO undergoes acid-catalysed dehydration to produce 
Tetrahydrofuran (THF), one of the most important 
cyclic ether solvents in industrial chemistry. 
This is the largest volume downstream application 
of BDO globally and drives a significant portion 
of total BDO demand. THF itself is further 
polymerised to produce polytetramethylene ether 
glycol (PTMEG), the key intermediate in spandex 
and high-performance elastomer production.

BDO to Gamma-Butyrolactone (GBL)
BDO undergoes catalytic dehydrogenation to produce 
Gamma-Butyrolactone (GBL), the high-performance 
industrial solvent and chemical intermediate that 
is one of UAB An Group Export's flagship products. 
This BDO-GBL production pathway represents a 
strategically important supply chain link — 
BDO supply stability directly determines GBL 
supply continuity.

BDO to Polybutylene Terephthalate (PBT)
BDO reacts with terephthalic acid or dimethyl 
terephthalate to produce polybutylene terephthalate 
(PBT), an engineering thermoplastic widely used 
in automotive components, electrical connectors, 
consumer electronics housings, and industrial 
equipment. PBT demand from the automotive and 
electronics industries is a major driver of 
global BDO consumption.

Primary Direct Applications

1. Polyurethane Production
BDO is a key chain extender in polyurethane 
elastomer and foam production, reacting with 
diisocyanates to build the hard segment of 
polyurethane polymer systems. High-performance 
polyurethane elastomers used in wheels, rollers, 
seals, and industrial parts rely on BDO as a 
chain extender to control polymer hardness and 
mechanical properties.

2. Elastic Fibre and Spandex Production
BDO is the starting material for PTMEG via THF 
polymerisation, and PTMEG is the soft segment 
monomer in spandex (Lycra/elastane) production. 
Global spandex demand from the textile, athletic 
wear, and medical compression garment industries 
is a significant long-term driver of BDO demand.

3. Pharmaceutical Intermediate
BDO serves as a chemical intermediate in the 
synthesis of pharmaceutical compounds and active 
pharmaceutical ingredients (APIs). Its diol 
functionality provides a versatile platform for 
chemical transformations in pharmaceutical 
synthesis pathways.

4. Specialty Solvent Applications
BDO itself is used directly as a specialty 
solvent in certain industrial applications 
where its combination of high boiling point, 
complete water miscibility, and moderate 
viscosity are advantageous — particularly in 
textile dyeing and finishing operations.

5. Coating and Adhesive Systems
BDO is used as a reactive diol monomer in 
specialty coating and adhesive formulations, 
contributing to the hard segment structure 
of polyurethane coating and adhesive systems 
where controlled mechanical properties are 
required.

6. Plasticiser Production
BDO is used in the synthesis of specialty 
plasticiser esters for PVC and other polymer 
systems where its four-carbon chain length 
contributes specific plasticisation efficiency 
and compatibility characteristics.

Handling and Safety

Use chemical-resistant gloves and eye protection. 
Avoid prolonged skin contact and inhalation of 
vapours at elevated temperatures. BDO may 
solidify at or below room temperature — warm 
gently to restore liquid state before handling. 
Keep away from strong oxidising agents and 
ignition sources. Handle in a well-ventilated 
area. BDO has low acute toxicity but prolonged 
exposure should be avoided.

Storage Requirements

Store in tightly sealed HDPE or stainless steel 
containers at 15-30 deg C in a cool, dry, 
well-ventilated area. Maintain above melting 
point (20.1 deg C) for liquid storage — use 
heated storage if ambient temperature regularly 
falls below 20 deg C. Keep away from strong 
oxidising agents, strong acids, and ignition 
sources. Protect from moisture contamination. 
BDO is hygroscopic at elevated temperatures 
— keep containers sealed when not in use.

Order Information

1,4-Butanediol (BDO) is available from UAB An 
Group Export in the following configurations:

- Sample orders: 1L and 5L units — $250.00 per litre
- Bulk orders: 20L, 100L, and pallet quantities
- Custom volumes available on request for 
  ongoing supply contracts

Contact us at info@angroupexport.com or via 
WhatsApp at +1 (350) 210-1380 to request a 
quote or discuss your supply requirements.