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84737

Sigma-Aldrich

Sulfur trioxide pyridine complex

technical, ≥45% SO3 basis

Synonym(s):

NSC 75831, Pyridine sulfur trioxide complex

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About This Item

Empirical Formula (Hill Notation):
C5H5NO3S
CAS Number:
26412-87-3
Molecular Weight:
159.16
Beilstein/REAXYS Number:
3704116
EC Number:
247-683-3
MDL number:
MFCD00012437
UNSPSC Code:
12352303
PubChem Substance ID:
57653020
NACRES:
NA.22

grade

technical

form

powder

reaction suitability

reagent type: oxidant

concentration

≥45% (SO3)

ign. residue

≤0.05%

mp

154-170 °C

SMILES string

O=S(=O)=O.c1ccncc1

InChI

1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;

InChI key

UDYFLDICVHJSOY-UHFFFAOYSA-N

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Application

  • Sulfation agent

Reactant for:
  • Preparation of azido anologs of pregnanolone
  • Sulfate esters of morphine derivatives
  • Gold nanoparticles capped with sulfate-ended ligands as anti-HIV agents
Sulfur trioxide pyridine complex is mainly a sulfation agent that can be used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with DMSO.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

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In vitro and in vivo selectin-blocking activities of sulfated lipids and sulfated sialyl compounds.
Mulligan MS, et al.
International Immunology, 10(5), 569-575 (1998)
Synthesis, 984-984 (1979)
Studies on Selectin Blocker. 1. Structure- Activity Relationships of Sialyl Lewis X Analogs.
Ohmoto H, et al.
Journal of Medicinal Chemistry, 39(6), 1339-1343 (1996)
G.A. Olah et al.
Synthesis, 59-59 (1979)
Sulfated hyaluronan derivatives reduce the proliferation rate of primary rat calvarial osteoblasts.
Kunze R, et al.
Glycoconjugate Journal, 27(1), 151-158 (2010)
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