Tricresyl phosphate (CAS 78-32-0) — formula C21H21O4P, molecular weight 368.4; category fine chemicals.
Tricresyl phosphate (CAS 78-32-0) is a chemical raw material in the fine 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 171 to 172 °F (NTP, 1992), boiling point around 435 °F at 3.5 mmHg (NTP, 1992), LogP about 5.11. 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 | 78-32-0 |
|---|---|
| Molecular Formula | C21H21O4P |
| Molecular Weight | 368.4 |
| Melting Point | 171 to 172 °F (NTP, 1992) |
| Boiling Point | 435 °F at 3.5 mmHg (NTP, 1992) |
| LogP | 5.11 |
| Applications | flame retardant, Used in isomeric mixture known as Tricresyl phosphate (CAS # 1330-78-5), Plasticizer in vinyl plastics manufacture, flame-retardant, solvent for nitrocellulose, in cellulosic molding compositions |
| Category | Fine Chemicals |
Documented applications: flame retardant, Used in isomeric mixture known as Tricresyl phosphate (CAS # 1330-78-5), Plasticizer in vinyl plastics manufacture, flame-retardant, solvent for nitrocellulose, in cellulosic molding compositions.
Tricresyl phosphate is a high-value fine compound with CAS registry number 78-32-0 and molecular formula C21H21O4P (molecular weight 368.4), belonging to the fine chemicals segment of chemical raw materials.
CAS number: 78-32-0
Its molecular formula C21H21O4P comprises 21 C, 21 H, 4 O, 1 P atoms.
Also known as: Tricresyl phosphate · 磷酸三甲苯酯
Category: fine chemicals
The CAS registry number of Tricresyl phosphate is 78-32-0.
Molecular formula C21H21O4P, molecular weight 368.4.
It is also registered under: Tricresyl phosphate, 磷酸三甲苯酯.
Recorded applications: flame retardant, Used in isomeric mixture known as Tricresyl phosphate (CAS # 1330-78-5), Plasticizer in vinyl plastics manufacture, flame-retardant, solvent for nitrocellulose, in cellulosic molding compositions.
Category: Fine 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 Tricresyl phosphate (CAS 78-32-0), compiled from public chemistry databases.
| CAS Registry Number | 78-32-0 |
|---|---|
| PubChem CID | 6529 |
| Molecular formula | C21H21O4P |
| IUPAC name | tris(4-methylphenyl) phosphate |
| UNII (FDA) | 5149JKD098 |
| Molecular Weight | 368.4 |
|---|---|
| XLogP3 | 5.1 |
| 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 | 435 °F at 3.5 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | BP: 224 °C at 35 mm Hg |
| Melting Point | 171 to 172 °F (NTP, 1992) |
| Melting Point | 77.5 °C |
| Density | 1.247 g/cu cm at 25 °C |
| Vapor Pressure | 0.00000003 [mmHg] |
| LogP | 5.11 |
| Collision Cross Section | 200.02 Ų [M+Na]+ |
| Collision Cross Section | 190.02 Ų [M+H]+ |
| Collision Cross Section | 273.74 Ų [2M+Na]+ |
78-32-0; Tri-p-tolyl phosphate; TRI-P-CRESYL PHOSPHATE; Tris(4-methylphenyl) phosphate; Phosphoric acid, tris(4-methylphenyl) ester; Phosphoric acid, tri(4-tolyl)ester; HSDB 2559; NSC 2181; EINECS 201-105-6; 5149JKD098; UNII-5149JKD098; AI3-04490; NSC-2181; p-Tolyl phosphate ((C7H7O)3PO); DTXSID5052676; TRI-P-CRESYL PHOSPHATE [HSDB]
| Reported hazard statements | H302, H312, H411, H400 (71.9%), H410 (33.8%), H373 |
|---|
H302: Harmful if swallowed [Warning Acute toxicity, oral]
H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
Tricresyl phosphate · CAS 78-32-0 · C21H21O4P. UNII 5149JKD098. Boiling Point: 435 °F at 3.5 mmHg (NTP, 1992); Boiling Point: BP: 224 °C at 35 mm Hg; Melting Point: 171 to 172 °F (NTP, 1992).
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 磷酸三甲苯酯