Pyridine sulfur trioxide
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- $7.62 - $22500
- Product name: Pyridine sulfur trioxide
- CAS: 26412-87-3
- MF: C5H5NO3S
- MW: 159.16
- EINECS:247-683-3
- MDL Number:MFCD00078270
- Synonyms:Pyridine,compd.withsulfurtrioxide(1:1) ;PYRIDINE SULFUR TRIOXIDE COMPLEX ( PSS );Sulfur trioxide-pyridine complex, 98%, active SO3 ca 48-50% w/w;Sulfur trioxide-pyridine complex, tech., 80%;Sulfurtrioxide-pyridinecomplex,98%;Sulfur trioxide pyridine complex, tech. (48.8-50.3% active SO3);Pyridine, compd. with sulfur trioxide;sulfur trioride-pyridine
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Brand
- aablocks
- AccelPharmtech
- AK Scientific
- American Custom Chemicals Corporation
- Apolloscientific
- Atlantic Research Chemicals
- Biosynth
- Chem-Impex
- Frontier Specialty Chemicals
- Labseeker
- Medical Isotopes, Inc.
- Sigma-Aldrich
- SynQuest Laboratories
- TCI Chemical
- Thermo Scientific Chemicals
- TRC
- Usbiological
Package
- 100mg
- 250mg
- 1g
- 8181120100
- 5g
- 10g
- 25g
- 50g
- 100g
- 250g
- 0.25kg
- 0.5kg
- 500g
- 1000g
- 1kg
- 2kg
- 5kg
- 500KG
- 25 g
- 50gm:
- 100 g
- Manufactureraablocks
- Product numberAA002T0D
- Product descriptionPyridine sulfur trioxide 98%
- Packaging500g
- Price$47
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA002T0D
- Product descriptionPyridine sulfur trioxide 98%
- Packaging100g
- Price$13
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA002T0D
- Product descriptionPyridine sulfur trioxide ≥97%
- Packaging25g
- Price$10
- Updated2026-05-28
- Buy
- ManufacturerAccelPharmtech
- Product numberAT2266
- Product descriptionPyridine Sulfur Trioxide 99%
- Packaging500KG
- Price$22500
- Updated2026-05-21
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex 98%,activeSO3ca48-50%
- Packaging250g
- Price$118
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ92668
- Product descriptionSulfur trioxide pyridine complex 95%
- Packaging500g
- Price$167
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex
- Packaging500g
- Price$188
- Updated2021-12-16
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex 98%,activeSO3ca48-50%
- Packaging500g
- Price$209
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex 98%,activeSO3ca48-50%
- Packaging1kg
- Price$395
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex 98%,activeSO3ca48-50%
- Packaging100g
- Price$53
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ92668
- Product descriptionSulfur trioxide pyridine complex 95%
- Packaging100g
- Price$45
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ92668
- Product descriptionSulfur trioxide pyridine complex 95%
- Packaging250g
- Price$94
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ92668
- Product descriptionSulfur trioxide pyridine complex 95%
- Packaging5g
- Price$13
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex 98%,activeSO3ca48-50%
- Packaging5g
- Price$18
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ92668
- Product descriptionSulfur trioxide pyridine complex 95%
- Packaging25g
- Price$20
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberS081
- Product descriptionSulfur trioxide pyridine complex 98%,activeSO3ca48-50%
- Packaging25g
- Price$26
- Updated2026-06-04
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| aablocks | AA002T0D | Pyridine sulfur trioxide 98% | 500g | $47 | 2026-05-28 | Buy |
| aablocks | AA002T0D | Pyridine sulfur trioxide 98% | 100g | $13 | 2026-05-28 | Buy |
| aablocks | AA002T0D | Pyridine sulfur trioxide ≥97% | 25g | $10 | 2026-05-28 | Buy |
| AccelPharmtech | AT2266 | Pyridine Sulfur Trioxide 99% | 500KG | $22500 | 2026-05-21 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex 98%,activeSO3ca48-50% | 250g | $118 | 2026-06-04 | Buy |
| AK Scientific | J92668 | Sulfur trioxide pyridine complex 95% | 500g | $167 | 2026-06-04 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex | 500g | $188 | 2021-12-16 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex 98%,activeSO3ca48-50% | 500g | $209 | 2026-06-04 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex 98%,activeSO3ca48-50% | 1kg | $395 | 2026-06-04 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex 98%,activeSO3ca48-50% | 100g | $53 | 2026-06-04 | Buy |
| AK Scientific | J92668 | Sulfur trioxide pyridine complex 95% | 100g | $45 | 2026-06-04 | Buy |
| AK Scientific | J92668 | Sulfur trioxide pyridine complex 95% | 250g | $94 | 2026-06-04 | Buy |
| AK Scientific | J92668 | Sulfur trioxide pyridine complex 95% | 5g | $13 | 2026-06-04 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex 98%,activeSO3ca48-50% | 5g | $18 | 2026-06-04 | Buy |
| AK Scientific | J92668 | Sulfur trioxide pyridine complex 95% | 25g | $20 | 2026-06-04 | Buy |
| AK Scientific | S081 | Sulfur trioxide pyridine complex 98%,activeSO3ca48-50% | 25g | $26 | 2026-06-04 | Buy |
Properties
Melting point :~160 °C
bulk density :600kg/m3
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
InChI :InChI=1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
InChIKey :UDYFLDICVHJSOY-UHFFFAOYSA-N
SMILES :C1=CC=NC=C1.S(=O)(=O)=O
CAS DataBase Reference :26412-87-3(CAS DataBase Reference)
EPA Substance Registry System :Pyridine sulfur trioxide (26412-87-3)
bulk density :600kg/m3
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
InChI :InChI=1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
InChIKey :UDYFLDICVHJSOY-UHFFFAOYSA-N
SMILES :C1=CC=NC=C1.S(=O)(=O)=O
CAS DataBase Reference :26412-87-3(CAS DataBase Reference)
EPA Substance Registry System :Pyridine sulfur trioxide (26412-87-3)
Safety Information
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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.More related product prices
Pyridine Sulfur trioxide Diantimony trioxide N-(Trimethylsilyl)imidazole 2-Pyridinecarboxaldehyde Pyridine hydrochloride 6969-71-7 Pyridinium tribromide Pyridine hydrobromide Pyridine-N-oxide Pyridine-4-boronic acid Sulfur N-BUTYLISOCYANIDE PHENYLSELENOL 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDERelated product price
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Pyridine
$9-54675 -
Sulfur trioxide
$662.16-2870 -
Diantimony trioxide
$15-9130
