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Sulfur trioxide-pyridine complex, 98%, active SO3 ca 48-50%, Thermo Scientific Chemicals
Catalog number: A12202.30
250 g, Each
Thermo Scientific Chemicals
Sulfur trioxide-pyridine complex, 98%, active SO3 ca 48-50%, Thermo Scientific Chemicals
Catalog number: A12202.30
250 g, Each
Quantity
Catalog number: A12202.30
also known as A12202-30
Price (EUR)
155,70 Online price
173,00
Each
Quantity
-
Chemical Identifiers
CAS
26412-87-3
IUPAC Name
pyridine; sulfonylideneoxidane
Molecular Formula
C5H5NO3S
InChI Key
UDYFLDICVHJSOY-UHFFFAOYSA-N
SMILES
O=S(=O)=O.C1=CC=NC=C1
Specifications
Specification SheetAppearance (Color)
White to cream to pale brown or pale yellow
Form
Powder
Assay (Aqueous acid-base Titration)
≥97.5 to ≤102.5%
Identification (FTIR)
Conforms
Description
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.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
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.
Solubility
Soluble in polar organic solvents.
Notes
Moisture sensitive. Incompatible with strong oxidizing agents.
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.
Solubility
Soluble in polar organic solvents.
Notes
Moisture sensitive. Incompatible with strong oxidizing agents.
RUO – Research Use Only
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Safety and Handling
Classification of the substance or mixture
CLP classification - Regulation(EC) No 1272/2008
Acute oral toxicity
Category 4
Skin Corrosion/Irritation
Category 2
Serious Eye Damage/Eye Irritation
Category 2
Label Elements
Signal Word
Warning
Hazard Statements
H302 - Harmful if swallowed
H315 - Causes skin irritation
H319 - Causes serious eye irritation
Precautionary Statements
P280 - Wear protective gloves/protective clothing/eye protection/face protection
P301 + P330 + P331 - IF SWALLOWED: rinse mouth. Do NOT induce vomiting
P302 + P352 - IF ON SKIN: Wash with plenty of soap and water
P312 - Call a POISON CENTER or doctor if you feel unwell
P337 + P313 - If eye irritation persists: Get medical advice/attention