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Dibutyl sulfide Cas 544-40-1

Dibutyl Sulfide (CAS 544-40-1)Dibutyl Sulfide, also known as n-Butyl Sulfide or Di-n-butyl sulfide, is a colorless to pale yellow liquid with a characteristic sulfurous odor at high concentrations and a green, herbaceous note at low concentrations. It is a versatile organic sulfur compound used acro...

CAS : 544-40-1

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Detailed introduction

Dibutyl Sulfide (CAS 544-40-1)

Dibutyl Sulfide, also known as n-Butyl Sulfide or Di-n-butyl sulfide, is a colorless to pale yellow liquid with a characteristic sulfurous odor at high concentrations and a green, herbaceous note at low concentrations. It is a versatile organic sulfur compound used across fragrance, flavor, petrochemical, and industrial applications.

Product Identification

Property	Value
Chemical Name	Dibutyl Sulfide
Synonyms	n-Butyl Sulfide, Di-n-butyl sulfide, Butylthiobutane, Dibutyl thioether, 5-Thianonane
CAS Number	544-40-1
EINECS	208-870-5
Molecular Formula	C₈H₁₈S
Molecular Weight	146.29 g/mol
FEMA Number	2215
JECFA Number	455

Physical & Chemical Properties

Property	Value
Appearance	Colorless to pale yellow liquid
Odor	Green, herbaceous; sulfurous at high concentration
Boiling Point	182–189 °C
Flash Point	61 °C (closed cup)
Specific Gravity	0.832–0.840 (25 °C)
Refractive Index	1.448–1.458 (20 °C)
Melting Point	−76 °C
Water Solubility	Insoluble; soluble in ethanol, ether
Log Kow	3.87

Applications

Dibutyl Sulfide serves diverse industries:

Flavor & Fragrance: Used as a flavoring agent for fish, violet leaf, and savory notes. Supports floral, green, herbal, rose, geranium, and violet leaf accords in fragrance formulations.
Petrochemical: Solvent and extractant in petroleum processing; sulfiding agent for refinery catalysts.
Industrial: Lubricant additive, gas odorant, and processing aid in mining applications.
Organic Synthesis: Intermediate for pharmaceuticals and fine chemicals.

Safety & Handling

Dibutyl Sulfide is classified under CLP as:

H315 – Causes skin irritation
H319 – Causes serious eye irritation
H335 – May cause respiratory irritation

Handling Precautions:

Use in a well-ventilated area
Wear appropriate personal protective equipment (gloves, goggles, respiratory protection)
Avoid contact with skin and eyes
Keep away from ignition sources
Store in a cool, dry, well-ventilated area away from acids and oxidizing agents

Specifications

Parameter	Standard
Assay (GC)	≥98.0% / ≥99.0%
Appearance	Clear colorless to pale yellow liquid
Refractive Index (20°C)	1.4510–1.4550
Specific Gravity (25°C)	0.837–0.840
Moisture	≤0.50%

Custom specifications available upon request.

Packaging

Available in:

1 kg / 5 kg / 25 kg / 200 kg
Amber glass bottles, fluorinated bottles, or steel drums
Custom packaging options for bulk orders

Why Choose Deshang Chemical?

Shandong Deshang Chemical Co., Ltd. is a professional supplier of Dibutyl Sulfide and other fine chemicals, serving customers worldwide in fragrance, flavor, petrochemical, and industrial sectors.

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