What is GBL

What is GBL (gamma-butyrolactone)?

Gamma-butyrolactone (GBL) is a colorless, hygroscopic liquid known for its use as an industrial solvent and chemical intermediate.

It has the molecular formula C₄H₆O₂ and is characterized by a faint odor and a bitter taste. GBL is a lactone, a type of cyclic ester, and is a precursor of gamma-hydroxybutyric acid (GHB).

Other names of GBL: liquid ecstasys, blue nitro, blue nitro vitality, ghb droge, g droge, gbl dosieren, renewtrient, fire water, gamma-g, gh revitaliser, remforce.

Other names of GBL - What is GBL

Chemical properties and industrial use of gamma-butyrolactone

GBL is produced industrially by dehydrogenation of 1,4-butanediol in the presence of a copper catalyst at temperatures between 180-300 °C.

The yield of this process is about 95 %, with purification by liquid gas phase extraction. GBL can also be synthesized in the laboratory by oxidation of tetrahydrofuran (THF) or by a lipase-catalyzed reaction with 4-hydroxybutyrate (4-HB).

GBL is also used as an intermediate in the production of other chemicals such as N-methyl-2-pyrrolidone (NMP) and pyrrolidone and in the synthesis of certain pharmaceuticals.

Other uses of GBL

• Paint thinner
• Cleaning agent
• Super glue remover
• Electrolytic capacitors

Chemical reactions of GBL

The chemical structure of GBL enables its hydrolysis to gamma-hydroxybutyric acid (GHB) under basic conditions. This property has led to GBL being used to produce GHB, which is both a therapeutic agent and a substance of abuse. The conversion process is simple, making GBL an important precursor for GHB synthesis.

Regulation and legal status

GBL is regulated by law in many countries as it can be abused as a recreational drug by converting it to GHB in the body. GHB is known for its sedating and euphoric effects, which have led to it being associated with illegal use and safety concerns. As a result, GBL is often controlled under drug precursor laws and its sale and possession may be restricted.

Health effects and risks

Taking GBL can cause a number of side effects, including nausea, headaches, blurred vision, rapid heartbeat and increased blood pressure. Long-term abuse can lead to serious mental and physical health problems such as depression, anxiety and even psychosis. It is therefore crucial to consume GBL responsibly and in accordance with the relevant legal and safety guidelines.

Where can you buy GBL?

If you need GBL for legitimate industrial purposes, you can buy it from various suppliers. Reliable sources include specialized chemical suppliers and industrial suppliers. When purchasing GBL, always make sure to comply with local regulations. Researching suppliers and reading reviews can help ensure you get high-quality GBL for your needs.

• GBL Clean ShopThis store offers a variety of GBL products that are primarily marketed for industrial cleaning purposes, such as wheel cleaning and solvent applications. The company places great emphasis on the quality and purity of its GBL products and provides detailed instructions for use (GBL Clean Shop).
• GBL ShopThis store is known for its comprehensive range of GBL products and offers options for various quantities, including 500 ml, 1 l, 2 l, 5 l and more. It ensures secure and discreet transactions and offers competitive prices (GBL Shop).
• GBL Chem LabGBL is sold in various quantities on this website and its use for industrial cleaning and as a chemical intermediate is advertised. They highlight their secure ordering process and fast shipping options (GBL Chem Lab).

Where can I buy GBL in Germany, Austria and Switzerland?

More detailed information can be found in sources such as Wikipedia and FineChemical.net (Wikipedia) (Anbu Chem).

In summary, the history of GBL is characterized by its dual role as a valuable industrial solvent and controlled precursor to GHB, reflecting both its utility and the need for regulation to reduce abuse.