3-Mercapto-2-butanol is a chemical compound with the molecular formula C4H10OS and the CAS number 54812-86-1. It is a colorless to almost colorless liquid that has a strong odor of sulfur. It is also known as 2-Hydroxy-3-butanethiol, 3-Hydroxy-2-butanethiol or 2-Mercapto-3-butanol. It is used as a building block for organic synthesis and as a flavoring agent for food and beverages. It can be prepared by various methods, such as the reaction of butan-2,3-epoxide with thiourea, the reaction of 3-chloro-2-butanol with sodium sulfide, or the reaction of 4-pyrimidylmethyl bromide with 3-mercapto-2-butanol2. It can also form complexes with some transition metals, such as copper, nickel, and palladium.
1. Thiol Functionality: The compound contains a thiol functional group (-SH), which imparts reactivity and unique chemical properties. Thiols are known for their ability to form covalent bonds through thiol-disulfide exchange reactions.
2. Pungent Odor: 3-Mercapto-2-butanol has a distinct and pungent odor due to its thiol group. This characteristic odor can influence its applications in various industries, including fragrances and flavors.
3. Chemical Reactivity: The thiol group's reactivity makes 3-Mercapto-2-butanol suitable for a range of chemical reactions, including thiol-disulfide exchange reactions and modification of other molecules.
4. Versatile Applications: This compound finds applications in organic synthesis, chemical research, and industrial processes. It can be used as a building block for the synthesis of specialized chemicals, pharmaceutical intermediates, and agrochemicals.
5. Catalytic Activity: The thiol group's reactivity may enable the compound to participate as a catalyst or co-catalyst in certain reactions.
6. Sulfur Source: The compound serves as a source of sulfur in various chemical reactions, allowing for the incorporation of sulfur atoms into target molecules.
7. Compatibility with Disulfides: Due to its thiol group, 3-Mercapto-2-butanol can participate in thiol-disulfide exchange reactions, which are important in various biochemical processes.
1. Flavor and Fragrance Industry
The pungent odor of 3-Mercapto-2-butanol can be harnessed in the fragrance and flavor industry to provide unique notes in perfumes, colognes, and food products.
2. Chemical Synthesis
It serves as a versatile building block in chemical synthesis, enabling the creation of various compounds with thiol functionality. These compounds can find use in pharmaceuticals, agrochemicals, and materials science.
3. Pharmaceutical Intermediates
3-Mercapto-2-butanol can be used as an intermediate in the synthesis of pharmaceutical compounds. Its thiol group can participate in key reactions to introduce sulfur atoms or form specific covalent bonds.
4. Agrochemicals
The compound may be employed in the synthesis of agrochemicals, which are used in agriculture to protect crops from pests, diseases, and weeds.
5. Catalysis
The thiol group's reactivity could make 3-Mercapto-2-butanol useful as a catalyst or co-catalyst in certain chemical reactions.
6. Materials Science
It may be used in the synthesis of materials with specific properties, such as polymers or coatings that incorporate thiol functionality.
7. Research and Development
Researchers in various fields may use 3-Mercapto-2-butanol as a reagent to explore new chemical reactions, study thiol-disulfide exchange, or modify molecules for specific purposes.
8. Sulfur Source
Its thiol group provides a source of sulfur for incorporation into molecules, which is important in various biological and chemical processes.
9. Organic Synthesis
The compound's reactivity and ability to form thiol-disulfide bonds make it valuable for designing and synthesizing new organic compounds.
10. Biomedical Research
3-Mercapto-2-butanol can be used in certain biomedical research applications where thiol chemistry is relevant, such as studying protein structure and function.
| Product Name |
3-Mercapto-2-butanol |
| Cas No. |
54812-86-1 |
| Molecular Formula |
C4H10OS |
| Molecular Weight |
106.187 |
| Appearance |
Colorless to Almost colorless clear liquid |
| Purity |
99% Min |
| Odor |
Aroma of scallion, onion and garlic, with a sulfurous note. |
| Solubility |
Insoluble in water; miscible in alcohol and fat |
| Density at 25ºC |
1.013 |
| Boiling point |
162.3±23.0 °C at 760 mmHg |
| Flash point |
61.7±0.0 °C |
| Melting point |
-100°C (estimate) |
| Refractive index |
1.4779 |
Storage: Store in an inert atmosphere and at room temperature. It should also be protected from light, heat, and moisture.
Package: 200kg/drum or as customer's request.
Beijing Entrepreneur Science & Trading Co., Ltd. was established in the year 2001. We are focused on import and export business of high-quality specialty chemicals. Since its establishment, relying on diligent efforts, spirit of enterprising and professional services, the company has established extensive cooperation with world-famous chemical manufacturers and gained a good reputation in China chemical industry.
We have stable distribution cooperation with world leading suppliers from America, Europe, Japan and Taiwan. We are distributors of Ames Advantage Material, Novamet, Lanxess, Momentive, Potters, Rhodia, Roquette, Oerlikon Metco, Inovyn, KJ Chemical, Tokuyama, Mitsubishi Chemical, Chang Chun Group, etc.
Our products selling in China include Conductive Powder, Thermal Conductive Powder, Microwave Absorbing Powder, Acrylamide Functional Monomer and Special UV Monomer, Special Epoxy Resin, Mercaptan Curing Agent, Silane, Fumed Silica and Precipitated Silica, PVC Paste Resin, PVA, Carbon Black, Modified Starch, Photocatalyst, Formaldehyde Capture agent, Root Blocking Agent, Platinum Catalyst, Vinyl Silicone Oil, Surfactant, etc.
In 2014, the company entered the chemical export business. Based on our understanding of China chemical market, we select most qualified suppliers. We are able to source raw materials directly from factories. Most of our partners are the largest factory in China with over 20 years history. They have huge annual outputs, and hold ISO9001, ISO14001, GMP, KOSHER, HALAL, FDA, GSP, etc. certificates.
Our export products include Conductive Powder, Thermal Conductive Powder, Plant Extract, Inorganic Powder, Plasticizer, PVC Paste Resin, Silane, Flavors and Fragrances, Salen Catalysts and Ligands, Organic Intermediates, Pharmaceutical Intermediates.
We are proud to serve industries such as coating, ink, sealant, industrial, cosmetics, conductive powder, thermal conductive powder, pharmaceutical, flavor & fragrance, aroma, as well as many others.
We will support our customers in a continuous way in the following:
1. Timely feedback to inquiry within 24 hours
2. Pre-sales consultancy
3. Supply samples
4. Competitive price
5. Good packaging
6. Timely delivery
7. Small order is available
8. Good after sales services
9. Provide TDS, COA, commercial invoice, packing list and certificate of origin. Special requirements also could be discussed and met.
Can I request samples?
Yes, absolutely! We offer free samples of specified quantities. You only need to cover the freight charges.
Which documents are provided?
We provide essential documents such as Certificate of Analysis (COA), Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and more upon request.
What is your Minimum Order Quantity (MOQ)?
Typically, our MOQ is one standard package. However, we understand the importance of testing before committing to a mass order, so we offer free samples for your evaluation.
How do you ensure the quality of your products?
We prioritize quality assurance through several measures:
1. Expert Staff: Our team comprises professionals with extensive experience in chemical products or related fields. They undergo comprehensive training before providing any quotations.
2. Sample Availability: We offer free samples or pre-shipment samples for new collaborations, ensuring that our commercial products match the specifications provided to customers.
3. Third-Party Inspection: Upon request, we can arrange Third-Party Inspections, such as SGS, to further validate the quality of our products before shipping.
How do I make payments?
Once you receive the Proforma Invoice (PI) along with our product specifications, you can proceed with payment. We accept various payment methods including Telegraphic Transfer (T/T), Letter of Credit (LC), and more.
What is your after-sales service like?
At Beijing Entrepreneur Science & Trading Co., Ltd., we prioritize fostering long-term relationships with all our customers. For every order, we ensure transparency and commitment by signing a legally binding sales contract. Should you have any doubts or concerns regarding our products or services, please do not hesitate to contact us. Your satisfaction and trust are our top priorities.
Can I use my own label or packaging?
Absolutely. If required, we can use labels or packaging according to your specifications and preferences. Your branding and packaging needs are important to us, and we'll ensure they are met to your satisfaction.
Audited Supplier 
){kind=link}