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Pyridine Sulfur Trioxide CAS 26412-87-3

Pyridine Sulfur Trioxide is a white to light yellow crystalline powder, easily hygroscopic. Mainly used as mild sulphonation reagent (e.g. sulphonation of alcohols/phenols), drug synthesis and dyestuff intermediates, its stability is better than direct use of SO₃. It needs to be kept strictly sealed against moisture, strongly corrosive to skin and respiratory tract, operation requires protection.

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Model:
26412-87-3
Brand:
Futurechemical
Code:
26412-87-3

Product Description

Pyridine sulfur trioxide Basic information
Product Name:	Pyridine sulfur trioxide
CAS:	26412-87-3
MF:	C5H5NO3S
MW:	159.16
EINECS:	247-683-3
Mol File:	26412-87-3.mol
Pyridine sulfur trioxide Chemical Properties
Melting point	~160 °C
bulk density	600kg/m3
storage temp.	Store below +30°C.
solubility	Soluble in polar organic solvents.
form	Powder
color	White to beige
Water Solubility	reacts
Sensitive	Moisture Sensitive
BRN	3704116
InChI	InChI=1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
InChIKey	UDYFLDICVHJSOY-UHFFFAOYSA-N
SMILES	C1=CC=NC=C1.S(=O)(=O)=O
CAS DataBase Reference	26412-87-3(CAS DataBase Reference)
EPA Substance Registry System	Pyridine sulfur trioxide (26412-87-3)