DL-Homocysteine thiolactone hydrochloride
DL-Homocysteine thiolactone hydrochloride (CAS 6038-19-3), with the molecular formula C4H7NOS · HCl and a molecular weight of 153.63 g/mol, is a versatile heterocyclic building block. It serves as a crucial intermediate in chemical synthesis, particularly for constructing molecules containing thiophene rings or related structures. Its reactive nature makes it valuable in organic chemistry research and development for creating complex chemical entities.
- IUPAC
- DL-2-Amino-4-mercaptobutyric acid 1,4-thiolactone hydrochloride

Organic Synthesis Intermediate
DL-Homocysteine thiolactone hydrochloride is employed as a fundamental building block in multi-step organic syntheses. It facilitates the introduction of specific functional groups and ring systems into target molecules.
Heterocyclic Chemistry
This compound is particularly useful in the synthesis of sulfur-containing heterocyclic compounds, including thiophenes and related derivatives. It enables the construction of complex ring systems for various chemical applications.
Research and Development
Researchers utilise DL-Homocysteine thiolactone hydrochloride in academic and industrial R&D settings to explore novel chemical pathways and develop new materials or active pharmaceutical ingredients.
| Molecular weight | 153.63 |
|---|---|
| Empirical formula | C4H7NOS · HCl |
| Assay | ≥99.0% (AT) |
| Loss on drying | ≤0.5% loss on drying |
| Melting point | 202 °C (dec.)(lit.)~203 °C (dec.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 DL-Homocysteine thiolactone hydrochloride used for?
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DL-Homocysteine thiolactone hydrochloride is primarily used as a building block in organic synthesis, particularly for creating heterocyclic compounds like thiophenes, and in chemical research and development.
What is the CAS number and formula for DL-Homocysteine thiolactone hydrochloride?
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The CAS number is 6038-19-3, and its formula is C4H7NOS · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies DL-Homocysteine thiolactone hydrochloride with an assay of ≥99.0% (AT) and a loss on drying of ≤0.5%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should DL-Homocysteine thiolactone hydrochloride be handled?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound has a melting point of approximately 202-203 °C with decomposition.
How is DL-Homocysteine thiolactone hydrochloride packed, shipped, and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter since 1998, ensures appropriate packaging for domestic and international shipment of DL-Homocysteine thiolactone hydrochloride, adhering to all relevant regulations.
How can I request a sample or quote for DL-Homocysteine thiolactone hydrochloride?
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To request a sample or quote for DL-Homocysteine thiolactone hydrochloride, please contact our sales team through the website or by phone.
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