8.18112
Sulfur trioxide pyridine complex
for synthesis
Synonym(s):
Sulfur trioxide pyridine complex
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About This Item
Empirical Formula (Hill Notation):
C5H5N · O3S
CAS Number:
Molecular Weight:
159.16
UNSPSC Code:
12352303
EC Index Number:
247-683-3
NACRES:
NA.22
MDL number:
Assay:
≥97.0% (acidimetric)
Quality Level
assay
≥97.0% (acidimetric)
autoignition temp.
>350 °C
potency
500-2000 mg/kg LD50, oral (Rat)
reaction suitability
reagent type: oxidant
mp
155-165 °C
bulk density
600 kg/m3
storage temp.
2-30°C
SMILES string
[S](=O)(=O)=O.n1ccccc1
InChI
1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
InChI key
UDYFLDICVHJSOY-UHFFFAOYSA-N
Application
- Post-synthetic modulation of the charge distribution in a metal–organic framework for optimal binding of carbon dioxide and sulfur dioxide: This study discusses the modulation of pore environment to optimize the binding of sulfur dioxide in metal-organic frameworks. (L Li et al., 2019).
- Sulfation of abies ethanol lignin by complexes of sulfur trioxide with 1, 4-dioxane and pyridine: Research on the sulfation of lignin using a complex of sulfur trioxide with pyridine, exploring its implications and efficiency. (YN Malyar et al., 2021).
- Antioxidant and anticoagulant activities of mycelia polysaccharides from Catathelasma ventricosum after sulfated modification: This article explores the use of sulfur trioxide–pyridine complex for sulfating polysaccharides, enhancing their biological activities. (Y Liu et al., 2018).
- Sulfation of citrus pectin by pyridine-sulfurtrioxide complex and its anticoagulant activity: Study on derivatizing citrus pectin using a pyridine-sulfur trioxide complex to explore its potential health benefits. (Y Hu et al., 2015).
- Sulfur Dioxide–Pyridine Dimer. FTIR and Theoretical Evidence for a Low-Symmetry Structure: An investigation into the structure of the sulfur dioxide–pyridine complex using FTIR spectroscopy and theoretical models. (JW Keller, 2015).
Analysis Note
Assay (acidimetric): ≥ 97.0 %
Melting range (lower value): ≥ 160 °C
Melting range (upper value): ≤ 170 °C
Melting range (lower value): ≥ 160 °C
Melting range (upper value): ≤ 170 °C
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wgk
WGK 3
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B
Storage Class
8A - Combustible corrosive hazardous materials
Certificates of Analysis (COA)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 8181120100 | 04022536427713 |