4-Methyl-5-thiazoleethanol
4-Methyl-5-thiazoleethanol (CAS: 137-00-8; Formula: C6H9NOS; Molar Mass: 143.21 g/mol) is a versatile heterocyclic building block. This chemical is primarily used in chemical synthesis, particularly for creating novel ionic liquids and other complex organic molecules. Its solubility in common organic solvents and water makes it a convenient reagent for various laboratory applications. Tech Serve Solutions supplies this compound with a high purity assay.
- IUPAC
- 5-(2-Hydroxyethyl)-4-methylthiazole,Sulfurol
- Synonyms
- 5-(2-Hydroxyethyl)-4-methylthiazoleSulfurol

Synthesis of Ionic Liquids
4-Methyl-5-thiazoleethanol has been employed in the synthesis of novel thiazolium halogenide ionic liquids, showcasing its utility in the development of advanced materials.
Heterocyclic Chemistry
As a key heterocyclic building block, this compound serves as a valuable intermediate in diverse organic synthesis pathways within academic and industrial research settings.
Organic Synthesis Reagent
Its defined structure and reactivity profile make it suitable for incorporation into more complex molecular architectures, facilitating chemical transformations in research and development.
| Molecular weight | 143.21 |
|---|---|
| Empirical formula | C6H9NOS |
| Assay | 98% |
| Boiling point | 135 °C/7 mmHg(lit.) |
| Density | 1.196 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.550(lit.) |
| Solubility | alcohol: soluble(lit.)benzene: soluble(lit.)chloroform: soluble(lit.)diethyl ether/hexanes: soluble(lit.)water: very soluble(lit.) |
| Application | 4-Methyl-5-thiazoleethanol has been used in the synthesis of novel thiazolium halogenide ionic liquids1. |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 112 °C / 233.6 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Methyl-5-thiazoleethanol used for?
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4-Methyl-5-thiazoleethanol is used as a building block in chemical synthesis, notably for the preparation of novel thiazolium halogenide ionic liquids and other heterocyclic compounds.
What is the CAS number and chemical formula for 4-Methyl-5-thiazoleethanol?
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The CAS number for 4-Methyl-5-thiazoleethanol is 137-00-8, and its chemical formula is C6H9NOS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methyl-5-thiazoleethanol with an assay of 98%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated.
How should 4-Methyl-5-thiazoleethanol be handled safely?
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4-Methyl-5-thiazoleethanol is classified as a Warning with hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Handling requires appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation and avoid inhalation of vapours or dust.
Is 4-Methyl-5-thiazoleethanol a controlled substance?
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The provided data does not indicate that 4-Methyl-5-thiazoleethanol is a controlled substance.
How is 4-Methyl-5-thiazoleethanol packed, shipped, and exported?
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Tech Serve Solutions ensures appropriate packaging for global export, adhering to all relevant shipping regulations for chemical compounds.
How can I request a sample or quote for 4-Methyl-5-thiazoleethanol?
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To request a sample or a quote, please contact our sales department through the TSS website or direct inquiry channels, providing your specific requirements and delivery details.
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