Methyl thiazolidine-2-carboxylate hydrochloride
Methyl thiazolidine-2-carboxylate hydrochloride (CAS 50703-06-5) is the hydrochloride salt of the methyl ester of thiazolidine-2-carboxylic acid, a saturated five-membered sulfur- and nitrogen-containing (thiazolidine) heterocycle. With molecular formula C5H10ClNO2S - HCl and a molar mass of 220.12 g/mol, it is a crystalline heterocyclic building block used chiefly in chemical synthesis and medicinal-chemistry research. Tech Serve Solutions supplies it at 98% assay for laboratory and intermediate applications.
- IUPAC
- Thiazolidine-2-carboxylic acid methyl ester hydrochloride
- Synonyms
- Methyl thiazolidine-2-carboxylate hydrochlorideThiazolidine-2-carboxylic acid methyl ester hydrochlorideMethyl 1,3-thiazolidine-2-carboxylate hydrochloride2-Thiazolidinecarboxylic acid methyl ester hydrochloride

Heterocyclic building block
Serves as a thiazolidine scaffold in chemical synthesis, providing a saturated S,N-heterocyclic ring with a reactive C-2 methyl ester for onward functionalisation.
Pharmaceutical and medicinal-chemistry intermediate
Used in research-scale routes toward more complex molecules, where the thiazolidine core and ester handle support amidation, hydrolysis and ring-elaboration chemistry.
Ester for downstream derivatisation
The methyl ester can be hydrolysed to the parent carboxylic acid or converted to amides and other derivatives, making the compound a versatile intermediate for library synthesis.
Reference and laboratory reagent
Supplied at 98% assay for use as a defined starting material and reagent in synthetic and analytical laboratory work.
| Molecular weight | 220.12 |
|---|---|
| Empirical formula | C5H10ClNO2S · HCl |
| Assay | 98% |
| Melting point | 159-163 °C (dec.)(lit.) |
| 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 Methyl thiazolidine-2-carboxylate hydrochloride used for?
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It is used primarily as a heterocyclic building block and intermediate in chemical synthesis and medicinal-chemistry research. The thiazolidine ring and its C-2 methyl ester allow further reactions such as ester hydrolysis, amide formation and ring elaboration toward more complex target molecules.
What is the CAS number and molecular formula of Methyl thiazolidine-2-carboxylate hydrochloride?
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The CAS number is 50703-06-5 and the EC number is 256-726-5. The molecular formula is C5H10ClNO2S - HCl, corresponding to a molecular weight of 220.12 g/mol. The MDL number is MFCD00068022.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this material at a typical assay of 98% as a research and laboratory-grade building block. We do not represent it as USP, BP or EP pharmacopoeial grade. A current Certificate of Analysis is provided with each batch, and the reported melting point is 159-163 C (with decomposition).
What are the safety and handling requirements?
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Handle as a hazardous laboratory chemical using appropriate personal protective equipment, including eye shields, gloves and a suitable respirator filter (type N95 (US) or type P1 (EN143)). It is classified in German Water Hazard Class WGK 3 (severely hazardous to water), so prevent release to drains and watercourses. Always consult the full Safety Data Sheet, which accompanies every shipment, before use.
How is Methyl thiazolidine-2-carboxylate hydrochloride packed, shipped and exported?
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The product is packed in tightly sealed, appropriately labelled containers sized to order, from gram quantities to bulk. As a global exporter, Tech Serve Solutions arranges compliant documentation, including the Safety Data Sheet and Certificate of Analysis, and ships worldwide in line with applicable transport and customs regulations.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, packaging and destination, and our team will respond with availability, lead time and a formal quotation. Samples can be arranged on request for qualification purposes, subject to availability.
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