Triphenylphosphine oxide (CAS 791-28-6) — formula C18H15OP, molecular weight 278.3; category organic chemicals.
Triphenylphosphine oxide (CAS 791-28-6) is a chemical raw material in the organic chemicals category. Its molecular formula C18H15OP comprises 18 C, 15 H, 1 O, 1 P atoms. Its molecular weight is about 278.3. Reported physicochemical data: LogP about 2.85. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 791-28-6 |
|---|---|
| Molecular Formula | C18H15OP |
| Molecular Weight | 278.3 |
| LogP | 2.85 |
| Applications | processing (extraction, separation, and spectrophotometric determination) environmental samples of cadmium and mercury, Phosphine oxide, triphenyl-: ACTIVE |
| Category | Organic Chemicals |
Documented applications: processing (extraction, separation, and spectrophotometric determination) environmental samples of cadmium and mercury, Phosphine oxide, triphenyl-: ACTIVE.
Triphenylphosphine oxide is a carbon-based organic compound with CAS registry number 791-28-6 and molecular formula C18H15OP (molecular weight 278.3), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 791-28-6
Its molecular formula C18H15OP comprises 18 C, 15 H, 1 O, 1 P atoms.
Also known as: Triphenylphosphine oxide · 三苯基氧化膦
Category: organic chemicals
The CAS registry number of Triphenylphosphine oxide is 791-28-6.
Molecular formula C18H15OP, molecular weight 278.3.
It is also registered under: Triphenylphosphine oxide, 三苯基氧化膦.
Recorded applications: processing (extraction, separation, and spectrophotometric determination) environmental samples of cadmium and mercury, Phosphine oxide, triphenyl-: ACTIVE.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Triphenylphosphine oxide (CAS 791-28-6), compiled from public chemistry databases.
| CAS Registry Number | 791-28-6 |
|---|---|
| PubChem CID | 13097 |
| Molecular formula | C18H15OP |
| IUPAC name | diphenylphosphorylbenzene |
| UNII (FDA) | Z69161FKI3 |
| Molecular Weight | 278.3 |
|---|---|
| XLogP3 | 2.8 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 3 |
| Exact Mass | 278.086052095 |
| Monoisotopic Mass | 278.086052095 |
| Topological Polar Surface Area | 17.1 |
| Heavy Atom Count | 20 |
| LogP | 2.85 |
|---|
TRIPHENYLPHOSPHINE OXIDE; 791-28-6; Phosphine oxide, triphenyl-; Triphenyl phosphine oxide; Triphenyl phosphorus oxide; DTXSID2022121; TRIPHENYLPHOSPHINE MONOXIDE; Z69161FKI3; phosphorane, triphenyl-, oxide; DTXCID402121; NSC-398; RefChem:191910; 212-338-8; triphenylphosphane oxide; diphenylphosphorylbenzene; Triphenylphosphineoxide
| GHS notification summary | 2% (5 / 245) |
|---|
| GHS notification summary | 2% (5 / 245) |
|---|---|
| Reported hazard statements | H302 (98%), H315 (18%), H319 (18.4%), H335 (18%), H412 (96.3%), H371, H373 |
This chemical does not meet GHS hazard criteria for 2% (5 of 245) of reports.
H302 (98%): Harmful if swallowed [Warning Acute toxicity, oral]
Triphenylphosphine oxide · CAS 791-28-6 · C18H15OP. UNII Z69161FKI3. LogP: 2.85.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 三苯基氧化膦