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

Catalog Number	PKG Qty.	Price


45-51885-250MG	250 mg	$83.60 1/EAAdd To Favorites	Add To Favorites

application(s)	environmental
assay	≥97.0% (HPLC)
format	neat
grade	analytical standard
impurities	≤0.5% water
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
Quality Level	100
refractive index	n20/D 1.559-1.563
shelf life	limited shelf life, expiry date on the label
SMILES string	O=P(OC1=C(C)C=CC=C1)(OC2=C(C)C=CC=C2)OC3=CC=CC=C3C
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: • 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.
General description:	Tri-o-tolyl phosphate is classified under the class of non-halogenated organophosphate esters (OPEs).
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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	n20/D 1.559-1.563
Storage Temp.	2-8°C
UNSPSC	77101502