Molekula
2,5-Diphenyloxazole (PPO)
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
2,5-Diphenyloxazole (PPO) is a fluorescent compound used primarily as a scintillator in radiation detection and as a dopant in polymer-based luminescent materials. It is available in high purity with a molecular formula of C15H11NO, a molecular weight of 221.25 g/mol, and a CAS number of 92-71-7. Stored at ambient temperature, it carries a warning signal word due to potential hazards. Molekula supplies 2,5-Diphenyloxazole (PPO) 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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — $147.90 per pack
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | 70-76℃, |
| Water | ≤0.5%. |
| Assay | ≥99.0% (HPLC) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 197 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 74 °C |
| Boiling Point | 360 °C at 760 mmHg |
| Vapour Pressure | 0.00000465 mmHg |
Source: PubChem CID 7105 (PAC Chemical Database, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 11037283 |
| CAS Number | 92-71-7 |
| IUPAC Name | 2,5-diphenyl-1,3-oxazole |
| Molecular Formula | C15H11NO |
| Molecular Weight | 221.25 |
| Exact Mass | 221.0841 |
| SMILES | C1=CC=C(C=C1)C2=CN=C(O2)C3=CC=CC=C3 |
| InChIKey | CNRNYORZJGVOSY-UHFFFAOYSA-N |
| InChI | InChI=1S/C15H11NO/c1-3-7-12(8-4-1)14-11-16-15(17-14)13-9-5-2-6-10-13/h1-11H |
| PubChem CID | 7105 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29349944 |
| Tariff Code | 2934999090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H413 May cause long lasting harmful effects to aquatic life
Precautionary statements
- P261 Avoid breathing 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
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
- 2,3-oxazole
- 2,5-Diphenyl-1,3-oxazole
- 2,5-Diphenyloxazole
- DPO (scintillator)
- OXAZOLE, 2,5-DIPHENYL-
- Oxazole,5-diphenyl-
- PPO
- PPO (scintillator)
- Tritosol
- USAF EK-6775
Frequently asked questions
What is 2,5-Diphenyloxazole (PPO) used for?
PPO is primarily used as a fluorescent dye in scintillation cocktails and as a component in organic light-emitting diodes (OLEDs).
What is the chemical formula and molecular weight of PPO?
The formula is C15H11NO with a molecular weight of 221.25 g/mol.
How should PPO be stored?
PPO should be stored at ambient temperature, protected from light and moisture.
What grade of PPO does Molekula supply?
Molekula supplies PPO in high-purity grade suitable for research and specialty applications.
Can Molekula supply PPO in bulk quantities?
Yes, Molekula can supply PPO in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a PPO order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.