tri-o-tolyl phosphate (CAS 78-30-8) — formula C21H21O4P, molecular weight 368.4; category inorganic chemicals.
tri-o-tolyl phosphate (CAS 78-30-8) is a chemical raw material in the inorganic chemicals category. Its molecular formula C21H21O4P comprises 21 C, 21 H, 4 O, 1 P atoms. Its molecular weight is about 368.4. Reported physicochemical data: melting point around 11 °C, boiling point around 410 °C, LogP about 6.1. 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 | 78-30-8 |
|---|---|
| Molecular Formula | C21H21O4P |
| Molecular Weight | 368.4 |
| Melting Point | 11 °C |
| Boiling Point | 410 °C |
| LogP | 6.1 |
| Applications | flame retardant, plasticizer, lubricant, additive to gasoline and hydraulic fluids, and intermediate for pharmaceuticals. Also used in coatings and adhesives, in adhesives for air filter media |
| Category | Inorganic Chemicals |
Documented applications: flame retardant, plasticizer, lubricant, additive to gasoline and hydraulic fluids, and intermediate for pharmaceuticals. Also used in coatings and adhesives, in adhesives for air filter media.
tri-o-tolyl phosphate is an inorganic compound with CAS registry number 78-30-8 and molecular formula C21H21O4P (molecular weight 368.4), belonging to the inorganic chemicals segment of chemical raw materials.
CAS number: 78-30-8
Its molecular formula C21H21O4P comprises 21 C, 21 H, 4 O, 1 P atoms.
Also known as: tri-o-tolyl phosphate · 磷酸三邻甲苯酯
Category: inorganic chemicals
The CAS registry number of tri-o-tolyl phosphate is 78-30-8.
Molecular formula C21H21O4P, molecular weight 368.4.
It is also registered under: tri-o-tolyl phosphate, 磷酸三邻甲苯酯.
Recorded applications: flame retardant, plasticizer, lubricant, additive to gasoline and hydraulic fluids, and intermediate for pharmaceuticals. Also used in coatings and adhesives, in adhesives for air filter media.
Category: Inorganic 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 tri-o-tolyl phosphate (CAS 78-30-8), compiled from public chemistry databases.
| CAS Registry Number | 78-30-8 |
|---|---|
| PubChem CID | 6527 |
| Molecular formula | C21H21O4P |
| IUPAC name | tris(2-methylphenyl) phosphate |
| UNII (FDA) | X8II18JD0A |
| Molecular Weight | 368.4 |
|---|---|
| XLogP3 | 6.1 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 6 |
| Exact Mass | 368.11774614 |
| Monoisotopic Mass | 368.11774614 |
| Topological Polar Surface Area | 44.8 |
| Heavy Atom Count | 26 |
| Boiling Point | 410 °C |
|---|---|
| Boiling Point | 410 °C @760 [mm Hg] |
| Melting Point | 11 °C |
| Melting Point | -22-(-)13 °F |
| Melting Point | 52 °F |
| Flash Point | 437 °F ( 225 °C) (Closed cup) |
| Flash Point | 225 °C c.c. |
| Flash Point | 437 °F |
| Density | 1.1955 g/cu cm at 20 °C |
| Density | 1.16 |
Tri-o-tolyl phosphate; TRI-O-CRESYL PHOSPHATE; 78-30-8; TOCP; Phosphoric acid, tris(2-methylphenyl) ester; o-Cresyl phosphate; Triorthocresyl phosphate; Phosflex 179C; Tris(o-tolyl) phosphate; Trojkrezylu fosforan; Tri-2-methylphenyl phosphate; Tris(o-cresyl)-phosphate; o-Trikresylphosphate; Tris(o-methylphenyl)phosphate; Phosphoric acid, tri-o-cresyl ester; Tris(o-tolyl)-phosphate
| GHS notification summary | 0.3% (1 / 291) |
|---|
| GHS notification summary | 0.3% (1 / 291) |
|---|---|
| Reported hazard statements | H370, H411, H302 (41.2%), H400 (35.7%), H372, H373 |
H370 **: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
tri-o-tolyl phosphate · CAS 78-30-8 · C21H21O4P. UNII X8II18JD0A. Boiling Point: 410 °C; Boiling Point: 410 °C @760 [mm Hg]; Melting Point: 11 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 磷酸三邻甲苯酯