Molekula
Benzeneseleninic anhydride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Benzeneseleninic anhydride is a high-purity organoselenium compound primarily used as a mild oxidizing agent in organic synthesis, particularly for converting alcohols to aldehydes or ketones. It is also employed in the preparation of selenides and selenoxides. This white crystalline solid has a CAS number of 17697-12-0, a molecular formula of O(Se(O)C6H5)2, and a molecular weight of 360.13 g/mol. It must be stored at ambient conditions but handled with caution, as it carries a "Danger" signal word. Molekula supplies Benzeneseleninic anhydride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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5 g — £68.20 per pack ex VAT · £81.84 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Light yellow powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 28767766 |
| CAS Number | 17697-12-0 |
| IUPAC Name | phenylseleninyl benzeneseleninate |
| EC Number | 241-701-3 |
| Molecular Formula | O(Se(O)C6H5)2 |
| Molecular Weight | 360.13 |
| Exact Mass | 361.896 |
| SMILES | C1=CC=C(C=C1)[Se](=O)O[Se](=O)C2=CC=CC=C2 |
| InChIKey | FHPZOWOEILXXBD-UHFFFAOYSA-N |
| InChI | InChI=1S/C12H10O3Se2/c13-16(11-7-3-1-4-8-11)15-17(14)12-9-5-2-6-10-12/h1-10H |
| PubChem CID | 87253 |
| UN Number | UN3283 |
| REACH Code | Y110 |
| HTS Code | 2931.90.6000 |
| Tariff Code | 2931900090 |
Safety & GHS
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Toxic
GHS06
-
Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H301 + H331 Toxic if swallowed or inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
- P308+313 IF exposed or concerned: Get medical advice/attention
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Benzene Selenenic Anhydride
- Benzeneselenic anhydride
- Benzeneseleninic acid anhydride
- Benzeneseleninic acid, phenylseleninyl ester
- Bis(benzeneseleninic)anhydride
- Bis(phenylseleninic) anhydride
- C12H10O3Se2
- PHENYLSELENIC ANHYDRIDE
- Phenylseleninic Anhydride
- phenylseleninyl benzeneseleninate
Frequently asked questions
What is benzeneseleninic anhydride commonly used for?
It is primarily used as a mild oxidizing agent in organic synthesis, particularly for converting alcohols to aldehydes or ketones, and in the preparation of selenides.
What is the chemical formula and molecular weight of benzeneseleninic anhydride?
The formula is **O(Se(O)C₆H₅)₂** and the molecular weight is **360.13 g/mol**.
How should benzeneseleninic anhydride be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and incompatible substances.
What grade or purity is available for this product?
Molekula supplies benzeneseleninic anhydride in **high-purity research grade** (typically ≥97%).
Can Molekula supply benzeneseleninic anhydride in bulk quantities?
Yes, bulk quantities are available upon request—contact our sales team for pricing and lead times.
What documentation comes with an order of benzeneseleninic anhydride?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.