4532-64-3

Basic information

• Product Name: 2,3-Butanedithiol
• Synonyms: FEMA 3477;1,4-DIMERCAPTOBUTANE;2,3-DIMERCAPTOBUTANE;2,3-BUTANEDITHIOL;2,3-Butandithiol;butane-2,3-dithiol;2,3-BUTANEDITHIOL, 97+%;2 3-BUTANEDITHIOL 99+%
• CAS NO: 4532-64-3
• Molecular Formula: C₄H₁₀S₂
• Molecular Weight: 122.25
• EINECS: 224-870-8
• Product Categories: Pharmaceutical Raw Materials;Phenoles and thiophenoles;thiol Flavor;Self Assembly&Contact Printing;Self-Assembly Materials;Sulfur Compounds;Thiols/Mercaptans;ThiolsOrganic Building Blocks;A-B;Alphabetical Listings;Flavors and Fragrances
• Mol File: 4532-64-3.mol

Chemical Properties

• Melting Point: -53.9°C (estimate)
• Boiling Point: 86-87 °C50 mm Hg(lit.)
• Flash Point: 126 °F
• Appearance: /liquid (estimate)
• Density: 0.995 g/mL at 25 °C(lit.)
• Vapor Density: >1 (vs air)
• Vapor Pressure: 2.15mmHg at 25°C
• Refractive Index: n20/D 1.5194(lit.)
• PKA: 9.93±0.10(Predicted)
• CAS DataBase Reference: 2,3-Butanedithiol(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-Butanedithiol(4532-64-3)
• EPA Substance Registry System: 2,3-Butanedithiol(4532-64-3)

Safety Data

• Hazard Codes: Xn
• Statements: 10-22-36/37/38
• Safety Statements: 16-26
• RIDADR: UN 3336 3/PG 3
• WGK Germany: 3
• HazardClass: 3.2
• PackingGroup: III
• Hazardous Substances Data: 4532-64-3(Hazardous Substances Data)

Usage

Uses

Used in Food and Beverage Industry:
2,3-Butanedithiol is used as a flavor and fragrance additive for imparting a distinctive, sulfurous note to products such as cheeses, meats, and beers. Its pungent aroma enhances the sensory experience of these food items, adding depth and complexity to their taste profiles.
Used in Industrial Processes:
In the manufacturing sector, 2,3-Butanedithiol serves as a key component in the production of plastics, rubber, and pesticides. Its reactivity makes it a valuable asset in these industries, contributing to the development of various products with specific properties and applications.
Due to its hazardous nature, 2,3-Butanedithiol requires careful handling and storage to ensure safety and prevent exposure risks. Stringent protocols must be followed to manage its potential hazards effectively.

InChI:InChI=1/C4H10S2/c1-3(5)4(2)6/h3-6H,1-2H3

Upstream product

• 503-17-3 dimethylacetylene 
• 56155-50-1 trans-4,5-Dimethyl-1,3-dithiolane-2-thione 
• 107-01-7 butene-2 
• 71-43-2 benzene 
• 108-88-3 toluene 
• 1758-32-3 2,3-epoxybutane 

Downstream Products

• 1052718-19-0 2-methyl-2-phenyl-4,5-dimethyl-1,3-dithiolane 
• 97913-82-1 2-benzyl-4,5-dimethyl-1,3-dithiolane 
• 130431-39-9 2-(4-Ethynylphenyl)-4,5-dimethyl-1,3-dithiolane 
• 130431-38-8 2-(4-Bromophenyl)-4,5-dimethyl-1,3-dithiolane 
• 98180-05-3 Butan-2,3-bis-<2,4-dinitro-benzol>-disulfid 

Relevant articles and documents

A d b thiol synthesis method (by machine translation)

The invention discloses a d b thiol synthesis method, comprises the following steps: (1) 2, 3 - butanediol with the esterifying agent esterification get intermediate I (diester); (2) intermediate I (diester) with acetic acid solution of hydrogen bromide to obtain the intermediate II (2, 3 - dibromo butane); (3) the intermediate II with the thiourea condensation get intermediate III; (4) the intermediate III by KOH hydrolysis, acidification may be 2, 3 - d b thiol, yield is 60.0% more than, beneficial effect of the invention is to 2, 3 - butanediol as the starting material, price only 100 unit/kg, cost is lower than 800 Yuan, all the operation is normal, the process is simple, easy to separate each step intermediate, the final product only need to distil, high purity. (by machine translation)