1,3-Bis[(phenylseleno)methyl]benzene
1,3-Bis[(phenylseleno)methyl]benzene (CAS 239448-30-7) is an organoselenium compound with a molecular weight of 416.28 g/mol. It is primarily utilised as a precursor ligand in the synthesis of selenium-ligated palladium-pincer catalysts, which are important in various catalytic applications. This compound is supplied by TSS with an assay of 97% and is suitable for research and chemical synthesis purposes.
- Synonyms
- C20H18Se2
![1,3-Bis[(phenylseleno)methyl]benzene (C20H18Se2) — chemical structure, CAS 239448-30-7; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F239448-30-7.png&w=3840&q=75)
Catalyst Precursor
Serves as a vital precursor ligand for the preparation of selenium-ligated palladium-pincer catalysts. These catalysts find application in advanced organic synthesis and catalytic processes.
Chemical Synthesis
Utilised in chemical synthesis as a building block or reagent. Its specific structure enables its incorporation into more complex organometallic compounds and ligands.
Organoselenium Chemistry
A relevant compound within the field of organoselenium chemistry, offering unique reactivity due to the presence of selenium atoms. Useful for researchers exploring selenium's role in catalysis.
| Molecular weight | 416.28 |
|---|---|
| Empirical formula | C20H18Se2 |
| Assay | 97% |
| Application | Precursor ligand for preparation of Se-ligated Pd-pincer catalyst.4,5,2 |
| Melting point | 38-42 °C |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3283 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25 |
| Safety statements (S) | 36/37-45 |
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 1,3-Bis[(phenylseleno)methyl]benzene used for?
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This compound is primarily used as a precursor ligand for the preparation of selenium-ligated palladium-pincer catalysts, and also finds utility in general chemical synthesis and organoselenium chemistry research.
What is the CAS number and formula for 1,3-Bis[(phenylseleno)methyl]benzene?
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The CAS number is 239448-30-7, and the empirical formula is C20H18Se2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Bis[(phenylseleno)methyl]benzene with an assay of 97%. This is a technical/research grade material, and TSS does not represent it as USP, BP, EP, or any pharmacopoeia grade.
What are the primary safety concerns when handling this compound?
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This compound is classified as dangerous (GHS06, Signal Word: Danger) and is toxic if swallowed, in contact with skin, or if inhaled (H301 + H311 + H331). Appropriate personal protective equipment, including eyeshields, faceshields, gloves, and specific respirator cartridges, must be used. Handle only in a well-ventilated area or under a fume hood.
How is this chemical packed, shipped, and exported?
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As a specialist global supplier and exporter, Tech Serve Solutions ensures appropriate packaging for safe transport in compliance with international regulations. Specific details for packing and shipping can be provided upon request.
How can I request a sample or a quote for 1,3-Bis[(phenylseleno)methyl]benzene?
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Please contact our sales team directly via the website or by phone to request a sample or obtain a quotation for this product.
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