Product Description:
1,4-Butane sultone is a versatile cyclic sulfonic acid ester, appearing as a colorless to light yellow liquid. It is primarily utilized as an intermediate in organic synthesis, particularly in the pharmaceutical and chemical industries for introducing sulfobutyl groups into molecules. This compound is known for its reactivity and is a key building block in the preparation of various specialty chemicals, including surfactants, sensitizing dyes, and pharmaceutical agents.
Product Properties:
Property Value Chemical Name
1,4-Butane sultone
CAS Number
1633-83-6
Molecular Formula
C₄H₈O₃S
Molecular Weight
136.17 g/mol
Appearance
Colorless to light yellow liquid
Boiling Point
138-140 °C at 10 mmHg (approx. 280-284 °C at 760 mmHg)
Melting Point
12.5 – 14.5 °C
Density
1.332 g/cm³ at 20 °C
Solubility
Soluble in many organic solvents; reacts with water
Synonyms
Butane sultone; 1,2-Oxathiane 2,2-dioxide; Butylsultone; Tetrahydro-2H-1,2-oxathiin-2,2-dioxide
Product Usage:
Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs). For example, it can be a precursor for certain sulfa drugs or other sulfur-containing medications.
Surfactant Production: Employed in manufacturing specialty surfactants and emulsifiers due to the introduction of the sulfobutyl group, which can impart desirable hydrophilic properties.
Electroplating Additives: Acts as a brightener or leveling agent in electroplating baths, improving the quality and appearance of plated surfaces.
Dye Synthesis: Used in the creation of sensitizing dyes, particularly for photographic materials or other light-sensitive applications.
Battery Electrolytes: Investigated as an additive in lithium-ion battery electrolytes to improve performance and stability, particularly by forming a stable solid electrolyte interphase (SEI) on electrodes.
Chemical Reagent: Serves as a versatile alkylating agent in organic synthesis to introduce a sulfobutyl (-CH₂CH₂CH₂CH₂SO₃H) moiety.
Specialty Chemicals: A building block for various other specialty chemicals requiring a sulfonate group for their function.
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