Sodium barbiturate
Sodium barbiturate (CAS: 4390-16-3), with the molecular formula C4H3N2NaO3 and a molecular weight of 150.07, is a chemical compound utilised in various scientific applications. It is recognised for its role in chemical synthesis, particularly within the realm of heterocyclic building blocks and pyrimidine derivatives. This compound serves as a reagent for specific analytical procedures, such as the quantification of thrombin in plasma, contributing to biochemical research and diagnostics.
- IUPAC
- Barbituric acid sodium salt
- Synonyms
- Barbituric acid sodium salt

Thrombin Quantification
Sodium barbiturate has been employed as a reagent for the accurate quantification of thrombin levels within plasma samples. This application is crucial in haematology and diagnostic testing for monitoring coagulation processes.
Chemical Synthesis
As a derivative of barbituric acid, this compound serves as a valuable building block in organic synthesis. It is particularly useful in the construction of heterocyclic compounds, including pyrimidine-based structures.
Biochemical Research
Its specific reactivity and properties make sodium barbiturate a useful tool in biochemical research, enabling the study of enzymatic activities and reaction pathways within biological systems.
| Molecular weight | 150.07 |
|---|---|
| Empirical formula | C4H3N2NaO3 |
| Assay | ≥97.0% (T) |
| Solubility | hot water: soluble0.2 g/10 mL, clear, colorless |
| Application | Sodium barbiturate has been used for quantification of thrombin in plasma1. |
| 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 Sodium barbiturate used for?
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Sodium barbiturate is used in chemical synthesis, particularly for heterocyclic and pyrimidine building blocks, and has been applied for the quantification of thrombin in plasma.
What is the CAS number and formula for Sodium barbiturate?
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The CAS number is 4390-16-3 and the empirical formula (Hill notation) is C4H3N2NaO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium barbiturate with an assay of ≥97.0% (T). This product is not represented as USP, BP, or EP grade.
How should Sodium barbiturate be handled safely?
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Safe handling requires appropriate personal protective equipment, including eyeshields and gloves. A respirator filter such as type N95 (US) or type P1 (EN143) is recommended. The substance carries a WGK Germany rating of 3, indicating a high hazard to water.
Is Sodium barbiturate a controlled substance?
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The provided data does not indicate that Sodium barbiturate (CAS: 4390-16-3) is a controlled substance under standard chemical regulations. However, users should always verify local regulations.
How is Sodium barbiturate packed and shipped?
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Sodium barbiturate is carefully packed according to industry standards to ensure safe transit and is exported globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or a sample of Sodium barbiturate, please contact the Tech Serve Solutions sales team via our website or direct inquiry.
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