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Alfa Aesar™ Sulfur trioxide-pyridine complex, 98%, active SO3 ≈48-50%

$259.51 - $259.51

Chemical Identifiers

Chemical Name or Material Sulfur trioxide-pyridine complex
CAS 26412-87-3
Name Note Active SO3 ≈48 to 50%
Molecular Formula C5H5NO3S
Formula Weight 159.16g/mol
MDL Number MFCD00012437
UN Number UN3261
Beilstein 3704116
Synonym Pyridine-sulfur trioxide complex
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1220230

 
alfa aesar™
A12202-30
250g Each for $259.51

AAA122020B

 
alfa aesar™
A12202-0B
1000g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Melting Point ≈155° to 165°C
Quantity 250g
Chemical Name or Material Sulfur trioxide-pyridine complex
Name Note Active SO3 ≈48 to 50%
CAS 26412-87-3
Assay 98%
Molecular Formula C5H5NO3S
Formula Weight 159.16g/mol
MDL Number MFCD00012437
UN Number UN3261
Beilstein 3704116
Synonym Pyridine-sulfur trioxide complex
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H314-H318-H302
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
Health Hazard 3 GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF SWALLOWED: Rinse mouth.
Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOT Information Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.
TSCA TSCA

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.

Safety and Handling

Danger

GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF SWALLOWED: Rinse mouth.
Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H314-H318-H302
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.