Molekula
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide is a photoinitiator used in UV-curing applications such as coatings, inks, and adhesives. It is a white to off-white crystalline powder with a molecular formula of C26H27O3P, a molecular weight of 418.4645 g/mol, and is stable at ambient storage conditions. It carries a warning signal word due to potential health hazards. Molekula supplies Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide is a photoinitiator used in UV-curing applications such as coatings, inks, and adhesives. It is a white to off-white crystalline powder with a molecular formula of C26H27O3P, a molecular weight of 418.4645 g/mol, and is stable at ambient storage conditions. It carries a warning signal word due to potential health hazards. Molekula supplies Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Light yellow powder |
| Melting Point | 127 - 132 °C |
| Ash | <0.1% |
| Assay | 99% min. |
| Volatiles | <0.2% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 162881-26-7 |
| Molecular Formula | C26H27O3P |
| Molecular Weight | 418.4645 |
| SMILES | CC1=CC(=C(C(=C1)C)C(=O)P(=O)(C2=CC=CC=C2)C(=O)C3=C(C=C(C=C3C)C)C)C |
| EC / UN Number | 3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931.49.0080 |
| Tariff Code | 2931498090 |
Safety & GHS
-
Explosive
GHS01
-
Toxic
GHS06
Hazard statements
- H317 May cause an allergic skin reaction
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P272 Contaminated work clothing should not be allowed out of the workplace
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
For research and industrial use only
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide used for?
It is primarily used as a photoinitiator in UV-curable coatings, inks, and adhesives, enabling rapid polymerization upon exposure to UV light.
What is the chemical formula and molecular weight?
The formula is C26H27O3P with a molecular weight of 418.4645 g/mol.
How should this compound be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade is available?
Available in technical grade; custom purity levels may be requested upon inquiry.
Can Molekula supply this in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.