8.18112

Sulfur trioxide pyridine complex

for synthesis

• Synonym(e): Sulfur trioxide pyridine complex
• Empirische Formel (Hill-System): C₅H₅N · O₃S
• CAS-Nummer: 26412-87-3
• Molekulargewicht: 159.16
• UNSPSC Code: 12352303
• EC Index Number: 247-683-3
• NACRES: NA.22
• MDL number: MFCD00012437
• Assay: ≥97.0% (acidimetric)

Eigenschaften

• Quality Segment: 200
• 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

Beschreibung

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

Sicherheitshinweise

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302,H314
• pcodes: P260 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B
• Lagerklasse: 8A - Combustible corrosive hazardous materials
• wgk: WGK 3