Pyridine sulfur trioxide
Synonym(s):NSC 75831;Pyridine sulfur trioxide complex;Sulfur trioxide pyridine complex
- CAS NO.:26412-87-3
- Empirical Formula: C5H5NO3S
- Molecular Weight: 159.16
- MDL number: MFCD00078270
- EINECS: 247-683-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-19 20:33:22
What is Pyridine sulfur trioxide?
Chemical properties
white solid
The Uses of Pyridine sulfur trioxide
Usually used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with DMSO.
The Uses of Pyridine sulfur trioxide
Pyridine-Sulfur Trioxide Complex is used in the sulfation of squid ink polysaccharides (SIPs) as a potential candidate compound for the prevention of tumor metastasis. Pyridine-Sulfur Trioxide Complex is also used in the preparation and anticoagulation test of sulfated silk fibroin.
The Uses of Pyridine sulfur trioxide
Sulfur trioxide-pyridine complex is used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with dimethyl sulfoxide. It is also used as a source of sulfur trioxide especially in the preparation of sulfate esters. Further, it is used as an activating electrophile in a Parikh-Doering oxidation. In addition to this, it is also used in the preparation and anticoagulation test of sulfated silk fibroin.
Purification Methods
Wash the solid with a little CCl4, then H2O to remove traces of pyridine sulfate, and dry it over P2O5. [Baumgarten Chem Ber 59 1166 1926, Olah et al. Synthesis 59 1979, Beilstein 20/5 V 184].
Properties of Pyridine sulfur trioxide
Melting point: | ~160 °C |
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 |
CAS DataBase Reference | 26412-87-3(CAS DataBase Reference) |
EPA Substance Registry System | Pyridine sulfur trioxide (26412-87-3) |
Safety information for Pyridine sulfur trioxide
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Pyridine sulfur trioxide
Abamectin manufacturer
SYNGENESIS CHEMSCIENCE PRIVATE LIMITED
JSK Chemicals
Covalent Incorporation
NIRANJAN CHEMICALS
Anand Agencies
ASM Organics
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