1,4-Butanediol CAS 110-63-4

1,4-butanediol (BD) is an industrial chemical, and is illicitly used as a substitute to gamma-hydroxybutyric acid (GHB). BD and gamma-butyrolactone (GBL) are structurally similar to GHB and there is a large body of evidence to confirm that GBL and BD are converted to GHB after oral administration.

BDO has similar pharmacological effects to GHB in part because it is readily converted into GHB by the body’s own natural process. GHB is present in the central nervous system in very small concentrations; it is a metabolite of the neurotransmitter gamma-aminobutyric acid (GABA). Scientific data suggest that GHB can function as a neurotransmitter or neuromodulator in the brain. It produces dose-dependent depressant effects similar to those of the barbiturates and methaqualone. Low doses of BD/GHB produce drowsiness, nausea, and visual distortion.

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Product Information
CAS number110-63-4
EC number203-786-5
Hill FormulaC₄H₁₀O₂
Chemical formulaHO(CH₂)₄OH
Molar Mass90.12 g/mol
Structure formula Image
Application1,4-Butanediol for synthesis. CAS 110-63-4, chemical formula HO(CH₂)₄OH.
Physicochemical Information
Boiling point228 °C (1013 hPa)
Density1.02 g/cm3 (20 °C)
Explosion limit1.95 – 18.3 %(V)
Flash point134 °C
Ignition temperature385 °C
Melting Point16 °C
pH value7 – 8 (500 g/l, H₂O, 20 °C)
Vapor pressure<0.1 hPa (20 °C)
Viscosity kinematic83.2 mm2/s (20 °C)
Toxicological Information
LD 50 oralLD50 Rat 1525 mg/kg
LD 50 dermalLD50 Rabbit > 2000 mg/kg
Storage and Shipping Information
StorageStore below +30°C.
Assay (GC, area%)≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C)1.015 – 1.016
Water (K. F.)≤ 0.30 %
Identity (IR)passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

1,4-Butanediol, also known as BDO, is a colorless and viscous organic compound. It belongs to the family of diols and has the chemical formula C4H10O2. BDO is commonly used as a solvent, industrial intermediate, and chemical building block in various industries.

Here are some key points about 1,4-Butanediol:

  1. Chemical Properties: 1,4-Butanediol is a liquid at room temperature with a boiling point of 230 °C (446 °F) and a melting point of about 20 °C (68 °F). It is soluble in water and many organic solvents.
  2. Production: BDO can be produced through several methods, including the Reppe process, Davy process, and the butadiene process. The most common industrial method involves the catalytic hydrogenation of maleic anhydride or succinic acid.
  3. Uses: 1,4-Butanediol has a wide range of applications. It is primarily used as a solvent in various industries, such as coatings, textiles, and plastics. It is also used as a chemical intermediate in the production of polyurethanes, thermoplastic polyesters, and other polymers. BDO is a precursor for the synthesis of other chemicals, including gamma-butyrolactone (GBL) and tetrahydrofuran (THF).
  4. Pharmaceutical and Recreational Use: It’s worth noting that 1,4-Butanediol has been used illicitly as a recreational drug due to its conversion into gamma-hydroxybutyric acid (GHB) in the body. GHB is a controlled substance in many countries due to its potential for abuse and misuse. However, it’s important to emphasize that the intentional misuse of BDO or any substance for recreational purposes can be dangerous and illegal.
  5. Safety and Regulations: 1,4-Butanediol should be handled with care as it can cause skin and eye irritation. It is important to follow safety precautions and guidelines when working with this compound. Regulations regarding the production, handling, and use of BDO may vary between jurisdictions, so it’s essential to comply with local regulations and guidelines.

Please note that the information provided here is for general knowledge purposes only. If you require specific information about a particular application or aspect of 1,4-Butanediol, it is recommended to consult reliable sources or experts in the field.


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