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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:
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

Signal Word

Danger

Hazard Statements

H302,H314

Hazard Classifications

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

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

84737-BULK:
84737-100G:
84737-VAR:
84737-500G:
84737-10G:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH0976
BCCF8676
BCBZ3983
BCBZ2163
BCBX4932

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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)
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)
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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