PyOxim
PyOxim (CAS: 153433-21-7), with the molecular formula C17H29F6N5O3P2 and a molecular weight of 527.38, is a specialised chemical reagent. It is primarily utilised in chemical biology and synthesis, particularly within the field of peptide chemistry. PyOxim acts as an efficient coupling agent, facilitating the formation of peptide bonds in complex organic synthesis pathways, making it a valuable tool for researchers and manufacturers.
- IUPAC
- [Ethyl cyano(hydroxyimino)acetato-O2]tri-1-pyrrolidinylphosphonium hexafluorophosphate

Peptide Synthesis
PyOxim serves as a highly effective peptide coupling reagent. It facilitates the formation of amide bonds between amino acids, enabling the efficient synthesis of peptides and proteins for research and pharmaceutical development.
Chemical Biology Research
In chemical biology, PyOxim can be employed to modify biomolecules or synthesise labelled peptides. Its specific reactivity profile allows for precise chemical transformations in complex biological systems.
Organic Synthesis
Beyond peptide chemistry, PyOxim finds application in broader organic synthesis projects requiring the formation of amide bonds. Its robust performance aids in constructing complex molecular architectures.
| Molecular weight | 527.38 |
|---|---|
| Empirical formula | C17H29F6N5O3P2 |
| Assay | ≥97.5% (HPLC)98% |
| Storage temperature | 2-8°C |
| Impurities tested | ≤0.5% water |
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Risk statements (R) | 44 |
| Safety statements (S) | 15-24/25 |
| Supplemental hazards | Risk of explosion if heated under confinement. |
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 PyOxim used for?
+
PyOxim is primarily used as a peptide coupling reagent in chemical synthesis and chemical biology research, facilitating the formation of amide bonds.
What are the CAS number and formula for PyOxim?
+
The CAS number for PyOxim is 153433-21-7, and its molecular formula is C17H29F6N5O3P2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies PyOxim with an assay of ≥97.5% (HPLC) and also available at 98% purity. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should PyOxim be handled and stored?
+
PyOxim requires careful handling due to the risk of explosion if heated under confinement. It should be stored under refrigeration at 2-8°C. Refer to the safety data sheet for detailed handling procedures.
How is PyOxim packed and shipped?
+
PyOxim is carefully packed to ensure stability during transit and is available for export worldwide by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a sample or quote for PyOxim?
+
You can request a sample or a quote for PyOxim by contacting our sales team through the website or by calling our customer service line.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis