51885

Tri-o-tolyl phosphate

analytical standard

• Synonym(s): NSC 438, Phosphoric acid tris(2-methylphenyl) ester, TOTP, Tri-o-cresyl phosphate
• Empirical Formula (Hill Notation): C₂₁H₂₁O₄P
• CAS Number: 78-30-8
• Molecular Weight: 368.36
• Beilstein/REAXYS Number: 1892885
• MDL number: MFCD00041906
• UNSPSC Code: 77101502
• PubChem Substance ID: 329757762
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• assay: ≥97.0% (HPLC)
• shelf life: limited shelf life, expiry date on the label
• impurities: ≤0.5% water
• refractive index: n20/D 1.559-1.563
• application(s): environmental
• format: neat
• storage temp.: 2-8°C
• SMILES string: O=P(OC1=C(C)C=CC=C1)(OC2=C(C)C=CC=C2)OC3=CC=CC=C3C
• InChI: 1S/C21H21O4P/c1-16-10-4-7-13-19(16)23-26(22,24-20-14-8-5-11-17(20)2)25-21-15-9-6-12-18(21)3/h4-15H,1-3H3
• InChI key: YSMRWXYRXBRSND-UHFFFAOYSA-N

Description

General description

Tri-o-tolyl phosphate is classified under the class of non-halogenated organophosphate esters (OPEs).

Application

Tri-o-tolyl phosphate may be used as an analytical reference standard for the determination of tri-o-tolyl phosphate in:

• Analysis of tri-o-tolyl phosphate in edible oils by TLC and GC is described in methods FSSAI 02.036:2021 and FSSAI 02.037:2021
• 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.

Recommended products

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Safety Information

• pictograms: GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H370,H411
• pcodes: P260 - P264 - P273 - P301 + P312 - P308 + P311 - P391
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2 - STOT SE 1
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: 230.0 °F
• flash_point_c: 110 °C