

share
Isopropyl Methyl Sulfide CAS NO 1551-21-9
Unit Price:
CAS No.:1551-21-9
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Isopropyl Methyl Sulfide is a versatile organosulfur compound with the CAS registry number 1551-21-9. This chemical serves as a valuable intermediate and building block in advanced organic synthesis, prized for its ability to introduce sulfur-containing functional groups. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel compounds and materials.
Application
- Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring specific sulfur-based moieties.
- Agrochemical Synthesis: Used in the production of pesticides, herbicides, and fungicides where the isopropyl methyl sulfide group contributes to biological activity.
- Flavor & Fragrance Industry: Acts as a precursor for synthesizing sulfur-containing flavor compounds that impart savory, roasted, or meaty notes.
- Material Science Research: Employed in the development of novel polymers, ligands for catalysis, and organic electronic materials.
- Organic Synthesis Reagent: Functions as a nucleophile or a substrate in various organic transformations, including alkylation and cross-coupling reactions.
- Chemical Research & Development: Serves as a standard or starting material in methodological studies and exploratory chemistry within R&D laboratories.
Basic Information
| Product Name | Isopropyl Methyl Sulfide |
| CAS No. | 1551-21-9 |
| Molecular Formula | C4H10S |
| Molecular Weight | 90.19 g/mol |
| Synonyms | Methyl Isopropyl Sulfide; (1-Methylethyl)(methyl)sulfide; 2-(Methylthio)propane; Isopropyl Methyl Thioether; Methyl Isopropyl Thioether; 1-Methyl-1-(methylthio)ethane; 2-Methyl-2-(methylthio)propane (common misnomer); IPS |
| EINECS | 216-291-8 |
Quality Control
Our Isopropyl Methyl Sulfide is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods, to ensure high purity and consistency. We provide Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality systems are designed to meet the stringent requirements of GMP and ISO standards for fine chemical production.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents. Recommended storage temperature is between 2°C and 25°C. Keep container tightly sealed when not in use to prevent evaporation and maintain purity.
Specification
| Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Identification (IR) | Conforms to structure |
| Assay (GC) | ≥ 98.0% |
| Water Content (KF) | ≤ 0.5% |
| Refractive Index (n20D) | 1.450 - 1.460 |
| Density (20°C) | 0.82 - 0.86 g/mL |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


4-Methoxy-2-Methyl-2-Butanethiol CAS NO 94087-83-9


Diphenyl Disulfide CAS NO 882-33-7


Methanesulfonic Acid CAS NO 75-75-2


1-Dokosanethiol CAS NO 7773-83-3


Tetrahydrofurfuryl Sodium Thiosulfate CAS NO 77339-73-2


Di-tert-Butyl Polysulfide CAS NO 68937-96-2


2-Thiophenethiol CAS NO 7774-74-5


Methanethiol CAS NO 74-93-1


Ethanethiol CAS NO 75-08-1


Carbon Disulfide CAS NO 75-15-0


2-Propanethiol CAS NO 75-33-2


Ethylthiourea CAS NO 625-53-6


Dimethyl Sulphoxide CAS NO 67-68-5


Dimethyl Sulfone CAS NO 67-71-0


Ammonium 2-Hydroxyethanesulphonate CAS NO 57267-78-4


Tetrakis(2-Ethylhexyl) Thiuram Disulfide CAS NO 37437-21-1


1-Octane Sulfonic Acid CAS NO 3944-72-7


Karenz Mt Pe1 CAS NO 31775-89-0


Diphenyl-2,4,6-Trimethylphenylsulfonium p-Toluenesulfonate CAS NO 347841-51-4


Trichloromethanesulfinyl Chloride CAS NO 25004-95-9
Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.





