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ChemicalBook >> CAS DataBase List >> Pyridine sulfur trioxide

Pyridine sulfur trioxide

Pyridine sulfur trioxide price.
  • $21.21 - $7738.5
  • 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;sulphur trioxide--pyridine (1:1);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
Price26 Properties Safety Information Description
26 prices
Selected condition：
Brand
  • AK Scientific
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Atlantic Research Chemicals
  • Frontier Specialty Chemicals
  • Labseeker
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • SynQuest Laboratories
  • TCI Chemical
  • TRC
  • Usbiological
Package
  • 10g
  • 50g
  • 8181120100
  • 25g
  • 100G
  • 500g
  • 1KG
  • 50gm:
  • ManufacturerAK Scientific
  • Product numberS081
  • Product descriptionSulfur trioxide pyridine complex
  • Packaging500g
  • Price$188
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberING0005050
  • Product descriptionSULFUR TRIOXIDE PYRIDINE COMPLEX 95.00%
  • Packaging100G
  • Price$2483.25
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberING0005050
  • Product descriptionSULFUR TRIOXIDE PYRIDINE COMPLEX 95.00%
  • Packaging1KG
  • Price$7738.5
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR24145
  • Product descriptionSulphurtrioxidepyridinecomplex
  • Packaging100g
  • Price$41
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR24145
  • Product descriptionSulphurtrioxidepyridinecomplex
  • Packaging500g
  • Price$144
  • Updated2021-12-16
  • Buy
  • ManufacturerAtlantic Research Chemicals
  • Product numberXS00289
  • Product descriptionPyridinesulphurtrioxidecomplex 95%
  • Packaging50gm:
  • Price$21.21
  • Updated2021-12-16
  • Buy
  • ManufacturerFrontier Specialty Chemicals
  • Product numberJK266601
  • Product descriptionSulfurtrioxidepyridinecomplex,98%,tech.,activeSO3ca.48-50%
  • Packaging25g
  • Price$29
  • Updated2021-12-16
  • Buy
  • ManufacturerFrontier Specialty Chemicals
  • Product numberJK266601
  • Product descriptionSulfurtrioxidepyridinecomplex,98%,tech.,activeSO3ca.48-50%
  • Packaging100g
  • Price$82
  • Updated2021-12-16
  • Buy
  • ManufacturerFrontier Specialty Chemicals
  • Product numberJK266601
  • Product descriptionSulfurtrioxidepyridinecomplex,98%,tech.,activeSO3ca.48-50%
  • Packaging500g
  • Price$335
  • Updated2021-12-16
  • Buy
  • ManufacturerLabseeker
  • Product numberSC-26943
  • Product descriptionSulfur trioxide pyridine complex 95
  • Packaging1kg
  • Price$400
  • Updated2021-12-16
  • Buy
  • ManufacturerMedical Isotopes, Inc.
  • Product number61462
  • Product descriptionPyridine - Sulfur Trioxide Complex
  • Packaging100g
  • Price$650
  • Updated2021-12-16
  • Buy
  • ManufacturerMedical Isotopes, Inc.
  • Product number61462
  • Product descriptionPyridine - Sulfur Trioxide Complex
  • Packaging1kg
  • Price$2200
  • Updated2021-12-16
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number84737
  • Product descriptionSulfur trioxide pyridine complex technical, ≥45% SO
  • Packaging10g
  • Price$21.5
  • Updated2022-05-15
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberS7556
  • Product descriptionSulfur trioxide pyridine complex 97%
  • Packaging25g
  • Price$43.8
  • Updated2025-07-31
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.18112
  • Product descriptionSulfur trioxide pyridine complex for synthesis. CAS 26412-87-3, EC Number 247-683-3, chemical formula C H N * O S., for synthesis
  • Packaging8181120100
  • Price$72
  • Updated2021-12-16
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.18112
  • Product descriptionSulfur trioxide pyridine complex for synthesis
  • Packaging100g
  • Price$79.9
  • Updated2025-07-31
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific S081 Sulfur trioxide pyridine complex 500g $188 2021-12-16 Buy
American Custom Chemicals Corporation ING0005050 SULFUR TRIOXIDE PYRIDINE COMPLEX 95.00% 100G $2483.25 2021-12-16 Buy
American Custom Chemicals Corporation ING0005050 SULFUR TRIOXIDE PYRIDINE COMPLEX 95.00% 1KG $7738.5 2021-12-16 Buy
Apolloscientific OR24145 Sulphurtrioxidepyridinecomplex 100g $41 2021-12-16 Buy
Apolloscientific OR24145 Sulphurtrioxidepyridinecomplex 500g $144 2021-12-16 Buy
Atlantic Research Chemicals XS00289 Pyridinesulphurtrioxidecomplex 95% 50gm: $21.21 2021-12-16 Buy
Frontier Specialty Chemicals JK266601 Sulfurtrioxidepyridinecomplex,98%,tech.,activeSO3ca.48-50% 25g $29 2021-12-16 Buy
Frontier Specialty Chemicals JK266601 Sulfurtrioxidepyridinecomplex,98%,tech.,activeSO3ca.48-50% 100g $82 2021-12-16 Buy
Frontier Specialty Chemicals JK266601 Sulfurtrioxidepyridinecomplex,98%,tech.,activeSO3ca.48-50% 500g $335 2021-12-16 Buy
Labseeker SC-26943 Sulfur trioxide pyridine complex 95 1kg $400 2021-12-16 Buy
Medical Isotopes, Inc. 61462 Pyridine - Sulfur Trioxide Complex 100g $650 2021-12-16 Buy
Medical Isotopes, Inc. 61462 Pyridine - Sulfur Trioxide Complex 1kg $2200 2021-12-16 Buy
Sigma-Aldrich 84737 Sulfur trioxide pyridine complex technical, ≥45% SO 10g $21.5 2022-05-15 Buy
Sigma-Aldrich S7556 Sulfur trioxide pyridine complex 97% 25g $43.8 2025-07-31 Buy
Sigma-Aldrich 8.18112 Sulfur trioxide pyridine complex for synthesis. CAS 26412-87-3, EC Number 247-683-3, chemical formula C H N * O S., for synthesis 8181120100 $72 2021-12-16 Buy
Sigma-Aldrich 8.18112 Sulfur trioxide pyridine complex for synthesis 100g $79.9 2025-07-31 Buy
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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)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning GHS hazard pictograms P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
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.

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

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Related product price

Suppliers and manufacturers

Shandong Believe Chemical PTE.LTD
Pyridine sulfur trioxide
$10.00 /1kg
Pyridine sulfur trioxide CAS:26412-87-3
Hebei Chuanghai Biotechnology Co., Ltd
Pyridine sulfur trioxide
$10.00 /1KG
Pyridine sulfur trioxide CAS:26412-87-3
Nanjing Shunxiang Pharmaceutical Technology Co.,Ltd.
Pyridine sulfur trioxide
$0.00 /20kg
Pyridine sulfur trioxide CAS:26412-87-3
Shaanxi TNJONE Pharmaceutical Co., Ltd
Sulfur Trioxide Pyridine Complex
$0.00 /1kg
Sulfur Trioxide Pyridine Complex CAS:26412-87-3
Shanghai Worldyang Chemical Co.,Ltd.
Capot Chemical Co.,Ltd.
Henan Tianfu Chemical Co.,Ltd.
Shanghai Time Chemicals CO., Ltd.
Nanjing ChemLin Chemical Industry Co., Ltd.
Shanghai Yingrui Biopharma Co., Ltd.