Phenylbis(2,4,6-trimethylbenzoyl)phosphine ox… 162881-26-7

Name: Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99%
Brand: Vaqora Chemicals
SKU: VQ-019110

About Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99%

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (CAS 162881-26-7) is a polymer additive offered by Vaqora Chemicals with a typical assay of 99%. The compound has the formula C26H27O3P, corresponding to a molecular weight of 418.5 g/mol. Its systematic (IUPAC) name is [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone. Common synonyms include BAPOs and Bisacylphosphine oxides.

In its supplied form it is white to off-white to yellow to green powder or crystalline powder or chunks. Key physical data: a melting point of 130-134 °C. Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for polymerisation initiation, plasticising and modification, plastics compounding and UV-curing photoinitiation. Typical end-use sectors are polymers and plastics.

Vaqora Chemicals supplies Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide in 5 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Polymerisation initiation
Plasticising & modification
Plastics compounding
UV-curing photoinitiation

Industries

Specifications & identifiers

Chemical identifiers
Product name	Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99%
Catalogue No.	VQ-019110
CAS Number	162881-26-7
IUPAC name	[phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone
Molecular formula	C₂₆H₂₇O₃P
Molecular weight	418.5 g/mol
Exact mass	418.1698
Purity / assay	99%
HSN code	29221990
InChIKey	GUCYFKSBFREPBC-UHFFFAOYSA-N
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
PubChem CID	164512

Physical properties
Physical form	Powder
Appearance	White to off-white to yellow to green powder or crystalline powder or chunks
Melting point	130-134 °C
LogP (XLogP3)	6
H-bond donors / acceptors	0 / 3
TPSA	51.2 Å²
Synonyms	BAPOs, Bisacylphosphine oxides, Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, Phosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)-, Bis-trimethylbenzoyl phenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide, (Phenylphosphoryl)bis[(2,4,6-trimethylphenyl)methanone], Methanone, 1,1'-(phenylphosphinylidene)bis(1-(2,4,6-trimethylphenyl)-, Methanone, 1,1'-(phenylphosphinylidene)bis[1-(2,4,6-trimethylphenyl)-, (phenylphosphoryl)bis(mesitylmethanone), bis(2,4,6-trimethylbenzoyl)-phenyl phosphine oxide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H317May cause an allergic skin reaction
H413May cause long lasting harmful effects to aquatic life

Precautionary statements: P261, P272, P273, P280, P302 + P352, P321, P333 + P317, P362 + P364, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99%?

The CAS Registry Number of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% is 162881-26-7. It is also known as BAPOs, Bisacylphosphine oxides, Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide.

What is the molecular formula and molecular weight of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99%?

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% has the molecular formula C26H27O3P and a molecular weight of 418.5 g/mol. Its IUPAC name is [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone.

Which grade and pack sizes of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% can I order?

We supply Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% in (99%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99%?

Yes. Every lot of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% be shipped internationally?

Yes. Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.