Arsenobetaine
Arsenobetaine (CAS 64436-13-1), with the molecular formula C5H11AsO2 and a molecular weight of 178.06 g/mol, is an organoarsenic compound. This chemical is primarily utilised in biochemical investigations, particularly for studying the effects of inorganic arsenic exposure on mammalian systems, such as mice. Its unique structure and arsenic content make it a specific tool for toxicological and metabolic research.
- IUPAC
- 2-(Trimethylarsonio)acetate
- Synonyms
- 2-(Trimethylarsonio)acetate

Toxicological Research
Arsenobetaine is employed in studies examining the biochemical responses of organisms, like mice, to inorganic arsenic exposure. Investigations often focus on specific target organs such as the liver to understand metabolic pathways and toxicological effects.
Biochemical Investigations
This compound serves as a valuable reagent for researchers investigating the metabolism and distribution of arsenic in biological systems. Its known structure allows for controlled experiments to elucidate the mechanisms of arsenic toxicity and bioaccumulation.
Organic Synthesis Building Block
As an organoarsenic compound, Arsenobetaine can potentially serve as a building block in specialised organic synthesis routes, although its primary documented use is in toxicological research.
| Molecular weight | 178.06 |
|---|---|
| Empirical formula | C5H11AsO2 |
| Assay | ≥95.0% (NMR) |
| Grade | purum p.a. |
| Application | Arsenobetaine has been used to investigate the biochemical response of mice (Mus musculus) to inorganic arsenic exposure using liver as the target organ1. |


Hazard statements
- H301Toxic if swallowed
- H331Toxic if inhaled
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/25-50/53 |
| Safety statements (S) | 20/21-28-45-60-61 |
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 Arsenobetaine used for?
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Arsenobetaine is used to investigate the biochemical response of mice to inorganic arsenic exposure, with liver as a common target organ. It also serves as a building block in chemical synthesis.
What is the CAS number and formula for Arsenobetaine?
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The CAS number for Arsenobetaine is 64436-13-1, and its molecular formula is C5H11AsO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Arsenobetaine with a purity of ≥95.0% (NMR), as indicated by the purum p.a. grade. This product is not represented as USP, BP, EP, or other pharmacopoeial grades.
How should Arsenobetaine be handled safely?
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Arsenobetaine is dangerous and toxic. Handle with extreme care, using appropriate personal protective equipment including eyeshields, face shields, gloves, and a P2 respirator. Avoid breathing dust/fume/gas/mist/vapours/spray. In case of accidental exposure, seek immediate medical attention.
How is Arsenobetaine packed and shipped?
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Arsenobetaine is packed in compliance with transport regulations, identified under UN 3077 (Class 9, Packing Group III). Tech Serve Solutions exports chemicals globally, adhering to all necessary shipping and customs requirements.
How can I request a quote or sample for Arsenobetaine?
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To request a quote or a sample of Arsenobetaine, please contact our sales team through the website or by phone. Provide your specific requirements, and we will assist you promptly.
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