Thiolactic acid
Thiolactic acid (CAS 79-42-5) is a sulfur-containing organic compound with the linear formula CH3CH(SH)COOH and a molecular weight of 106.14 g/mol. This chemical is a valuable intermediate used in various chemical synthesis processes. Its thiol and carboxylic acid functionalities make it suitable for applications requiring mercaptan or carboxyl group incorporation in organic chemistry. Tech Serve Solutions (TSS) supplies Thiolactic acid for research and industrial applications.
- IUPAC
- 2-Mercaptopropionic acid
- Synonyms
- 2-Mercaptopropionic acid

Organic Synthesis Intermediate
Thiolactic acid serves as a key building block in the synthesis of more complex organic molecules. Its dual functionality allows for diverse chemical transformations, enabling its use in the development of new chemical entities.
Sulfur Compound Precursor
As a thiol, it can be utilised in reactions involving sulfur, making it a precursor for various sulfur-containing compounds. These can find applications in materials science and speciality chemicals.
Research and Development
In academic and industrial R&D settings, Thiolactic acid is employed for exploring novel reaction pathways and developing new chemical products. Its defined structure and reactivity are beneficial for mechanistic studies.
| Molecular weight | 106.14 |
|---|---|
| Linear formula | CH3CH(SH)COOH |
| Assay | 95% |
| Boiling point | 102 °C/16 mmHg(lit.)203-208 °C(lit.) |
| Density | 1.196 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.481(lit.) |
| Melting point | 10-14 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 112 °C / 233.6 °F |
| Transport (UN / ADR) | UN 2936 6.1 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 Thiolactic acid primarily used for?
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Thiolactic acid is primarily used as an intermediate in organic synthesis and as a precursor for various sulfur-containing compounds in research and industrial applications.
What is the CAS number and formula for Thiolactic acid?
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The CAS number for Thiolactic acid is 79-42-5, and its linear formula is CH3CH(SH)COOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Thiolactic acid with an assay of 95%. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade unless explicitly stated.
How should Thiolactic acid be handled safely?
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Thiolactic acid is classified as Danger, causing severe skin burns and eye damage (H314). Handle with appropriate personal protective equipment, including a full-face respirator, gloves, and goggles, in a well-ventilated area. Seek immediate medical attention if exposed.
How is Thiolactic acid packed, shipped, and exported?
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Thiolactic acid is packaged according to regulatory standards for hazardous materials. TSS exports this chemical globally, adhering to all international shipping and customs regulations.
How can I request a sample or quote for Thiolactic acid?
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To request a sample or a quote for Thiolactic acid, please contact the TSS sales department via our website or by phone, providing your specific requirements.
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