Antipain
Antipain (CAS: 37691-11-5) is a complex organic molecule with the empirical formula C27H44N10O6 and a molecular weight of 604.70 g/mol. This compound is recognised for its inhibitory properties, particularly against serine proteases. Antipain is a valuable research chemical utilised in biochemical studies and molecular biology to investigate protease functions and cellular processes. It serves as an essential tool in scientific research and development for a variety of laboratory applications.
- IUPAC
- [(S)-1-Carboxy-2-phenylethyl]carbamoyl-L-arginyl-L-valyl-argininal

Protease Inhibition Research
Antipain is widely used as a research tool to inhibit serine proteases such as trypsin, plasmin, and thrombin. This makes it invaluable for studying the roles of these enzymes in various biological pathways and disease mechanisms.
Biochemical Assays
In biochemical research, Antipain is employed to control proteolytic degradation during sample preparation and analysis. Its specific inhibitory action helps to preserve protein integrity and ensure accurate experimental results.
Cellular Biology Studies
This compound aids in understanding cellular processes where serine proteases are involved, including cell signalling, matrix remodelling, and apoptosis. Its use helps elucidate the consequences of protease activity.
| Molecular weight | 604.70 |
|---|---|
| Empirical formula | C27H44N10O6 |
| Storage temperature | −20°C |

Hazard statements
- H302Harmful if swallowed
| 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 Antipain primarily used for?
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Antipain is primarily used in research as an inhibitor of serine proteases, such as trypsin and plasmin, for biochemical and cellular biology studies.
What are the CAS number and formula for Antipain?
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The CAS number for Antipain is 37691-11-5, and its empirical formula is C27H44N10O6.
What grade and purity does Tech Serve Solutions supply for Antipain?
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Tech Serve Solutions supplies Antipain as a research-grade chemical. While specific purity levels are detailed on our product specification sheets, we do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
How should Antipain be handled and stored?
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Antipain is classified as harmful if swallowed (H302) and requires careful handling. It should be stored at -20°C. Personnel should use appropriate personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter.
Is Antipain available for international export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Antipain, and can facilitate international orders.
How can I request a quote or sample for Antipain?
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To request a quote or sample of Antipain, please visit the Tech Serve Solutions website or contact our sales department directly with your inquiry.
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