Tri-o-tolyl phosphate
SIAL/51885 - analytical standard
Synonym: NSC 438; Phosphoric acid tris(2-methylphenyl) ester; TOTP; Tri-o-cresyl phosphate
CAS Number: 78-30-8
Empirical Formula (Hill Notation): C21H21O4P
Molecular Weight: 368.36
MDL Number: MFCD00041906
Linear Formula: C21H21O4P
Product Type: Chemical
| application(s) | environmental |
| assay | ≥97.0% (HPLC) |
| format | neat |
| grade | analytical standard |
| impurities | ≤0.5% water |
| InChI | 1S/C21H21O4P/c1-16-10-4-7 |
| InChI key | YSMRWXYRXBRSND-UHFFFAOYSA |
| Quality Level | 100  |
| refractive index | n |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | O=P(OC1=C(C)C=CC=C1)(OC2= |
| storage temp. | 2-8°C |
| Application: | Tri-o-tolyl phosphate may be used as an analytical reference standard for the determination of tri-o-tolyl phosphate in: • Surface water and wastewater effluent samples by liquid chromatography coupled to tandem mass spectrometry equipped with electrospray ionization (LC-ESI-MS/MS) operating under the multiple reaction monitoring (MRM) mode of detection. • Human hair and nails by liquid-liquid extraction (LLE) and gas chromatography-mass spectrometry (GC-MS). • Indoor air, dust and window wipes by GC-MS/MS. • Outdoor air samples by ultra-performance liquid chromatography coupled to triple quadrupole mass spectrometry (UPLC-QqQ-MS/MS) equipped with ESI source and MRM detection. |
| General description: | Tri-o-tolyl phosphate is classified under the class of non-halogenated organophosphate esters (OPEs). |
| Symbol |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H302 - H370 - H411 |
| Precautionary statements | P260 - P264 - P270 - P273 - P301 + P312 - P308 + P311 |
| RIDADR | UN 3082 9 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 230.0 °F |
| Flash Point(C) | 110 °C |
| Purity | ≥97.0% (HPLC) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 77101502 |