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Tri-o-tolyl phosphate

analytical standard

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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:
1892885
MDL number:
MFCD00041906
UNSPSC Code:
77101502
PubChem Substance ID:
329757762
NACRES:
NA.24

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

Related Categories

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:
  • 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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Signal Word

Danger

Hazard Statements

H302,H370,H411

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - STOT SE 1

WGK

WGK 3

Flash Point(F)

230.0 °F

Flash Point(C)

110 °C

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Liquid chromatography-tandem mass spectrometry direct injection analysis of organophosphorus flame retardants in Ontario surface water and wastewater effluent.
Hao C, et al.
Chemosphere, 191, 288-295 (2018)
Towards a regional passive air sampling network and strategy for new POPs in the GRULAC region: Perspectives from the GAPS Network and first results for organophosphorus flame retardants.
Rauert C, et al.
The Science of the Total Environment, 573, 1294-1302 (2016)
Organophosphate esters flame retardants in the indoor environment.
Vykoukalova M, et al.
Environment International, 106, 97-104 (2017)
Liang-Ying Liu et al.
Journal of chromatography. A, 1406, 251-257 (2015-07-01)
A method for the digestion, extraction, fractionation, and analysis of three classes of flame retardants, including 36 polybrominated diphenyl ethers (PBDEs), 9 halogenated alternative flame retardants (AFRs), and 12 organophosphate esters (OPEs) in human hair and nail samples was developed.

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