Sulfur trioxide pyridine complex - ≥97% , CAS No.26412-87-3

CAS: 26412-87-3 Cat. No.: S106808 Molecular Weight: 159.16 Beilstein Registry Number: 3704116 EC Number: 247-683-3 PubChem CID: 168533
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
Py.SO3 | J-524102 | Cerium sputtering target, 76.2mm dia x 1.59mm thick | pyridine sulphur trioxide | Pyridine sulfotrioxide | UNII-SVL47N2N3Y | AKOS005258855 | DTXSID50885349 | SO3.Pyridine | pyridine; sulfonylideneoxidane | EINECS 248-968-5 | MFCD000124
Storage
Room temperature,Argon charged,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
S106808-25g
1
$9.90
50g
S106808-50g
2
$14.90
100g
S106808-100g
3
$21.90
500g
S106808-500g
3
$65.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Cool Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 16 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Usually used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with DMSO.

Specifications

Synonyms
Py.SO3 | J-524102 | Cerium sputtering target, 76.2mm dia x 1.59mm thick | pyridine sulphur trioxide | Pyridine sulfotrioxide | UNII-SVL47N2N3Y | AKOS005258855 | DTXSID50885349 | SO3.Pyridine | pyridine; sulfonylideneoxidane | EINECS 248-968-5 | MFCD000124
Specifications & Purity
≥97%
Storage
Room temperature, Argon charged, Cool
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid504757622
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504757622
Canonical SmilesC1=CC=NC=C1.O=S(=O)=O
IUPAC Namepyridine;sulfur trioxide
InChIKeyUDYFLDICVHJSOY-UHFFFAOYSA-N
INCHI1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
Isomeric SMILES C1=CC=NC=C1.O=S(=O)=O
WGK Germany 3
PubChem CID 168533
UN Number 3261
Molecular Weight 159.16
Beilstein 3704116
Reaxy-Rn 3704116

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassPyridines and derivatives
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentPyridines and derivatives
Alternative Parents Heteroaromatic compounds  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Pyridine - Heteroaromatic compound - Azacycle - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyridines and derivatives. These are compounds containing a pyridine ring, which is a six-member aromatic heterocycle which consists of one nitrogen atom and five carbon atoms.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

27 results found

Lot NumberCertificate TypeDateItem
F2615299Certificate of AnalysisMay 15, 2026 S106808
F2615298Certificate of AnalysisMay 15, 2026 S106808
F2615300Certificate of AnalysisMay 15, 2026 S106808
F2615301Certificate of AnalysisMay 15, 2026 S106808
B2207466Certificate of AnalysisOct 30, 2025 S106808
H2109246Certificate of AnalysisMay 12, 2025 S106808
H2109245Certificate of AnalysisMay 12, 2025 S106808
C2505642Certificate of AnalysisJan 03, 2025 S106808
C2505643Certificate of AnalysisJan 03, 2025 S106808
C2505655Certificate of AnalysisJan 03, 2025 S106808
C2505656Certificate of AnalysisJan 03, 2025 S106808
C2505658Certificate of AnalysisJan 03, 2025 S106808
H2518024Certificate of AnalysisJan 03, 2025 S106808
I2512062Certificate of AnalysisJan 03, 2025 S106808
F2519078Certificate of AnalysisJan 03, 2025 S106808
A2608103Certificate of AnalysisJan 03, 2025 S106808
L2022266Certificate of AnalysisOct 18, 2024 S106808
D2509663Certificate of AnalysisJun 20, 2024 S106808
D2509662Certificate of AnalysisJun 20, 2024 S106808
L1906114Certificate of AnalysisSep 07, 2023 S106808
B2303955Certificate of AnalysisFeb 08, 2023 S106808
D1503039Certificate of AnalysisJan 19, 2023 S106808
K1830136Certificate of AnalysisSep 20, 2022 S106808
E2413062Certificate of AnalysisDec 16, 2021 S106808
I2414044Certificate of AnalysisDec 16, 2021 S106808
B2207467Certificate of AnalysisDec 16, 2021 S106808
C2422099Certificate of AnalysisMar 01, 2021 S106808

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Chemical and Physical Properties
SolubilitySoluble in polar organic solvents.
SensitivityMoisture sensitive.
Melt Point(°C)160°C
Molecular Weight159.170 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass158.999 Da
Monoisotopic Mass158.999 Da
Topological Polar Surface Area65.099 Ų
Heavy Atom Count10
Formal Charge0
Complexity92.800
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count2
Documents & Articles
Citations of This Product
References
1. Xiaojing Sun, Hang Li, Liujie Qi, Fei Wang, Yachen Hou, Jingan Li, Shaokang Guan.  (2023)  Construction and biocompatibility evaluation of MOF/S-HA composite coating on the surface of magnesium alloy vascular stent.  PROGRESS IN ORGANIC COATINGS,      [PMID:] [10.1016/j.porgcoat.2023.108177]
2. Xue-Wu Chen, Yu-Yun Zheng, Jian-Ming Ouyang.  (2023)  Sulfated Undaria pinnatifida Polysaccharide Promotes Endocytosis of Nano-Calcium Oxalate Dihydrate by Repairing Subcellular Organelles in HK-2 Cells.  Antioxidants,  12  (5): (1015).  [PMID:37237881] [10.3390/antiox12051015]
3. Fei Fan, Ping Zhang, Lihao Wang, Tiantian Sun, Chao Cai, Guangli Yu.  (2019)  Synthesis and Properties of Functional Glycomimetics through Click Grafting of Fucose onto Chondroitin Sulfates.  BIOMACROMOLECULES,      [PMID:31361469] [10.1021/acs.biomac.9b00878]
4. Ling Li, Jin Zhang, Chao Li, Liqiang Chen, Renzhong Qiao.  (2014)  A facile method for synthesizing water-soluble and superior sustained release anti-HIV prodrug SCs–d4T.  Materials Science & Engineering C-Materials for Biological Applications,      [PMID:25686930] [10.1016/j.msec.2014.12.065]
5. Songbai Liu, Yuanqing Fu, Si Nian.  (2014)  Buffering colour fluctuation of purple sweet potato anthocyanins to acidity variation by surfactants.  FOOD CHEMISTRY,      [PMID:24874351] [10.1016/j.foodchem.2014.04.029]
6. Ling-Ling Shao, Quan-Fu An, Yan-Li Ji, Qiang Zhao, Xue-San Wang, Bao-Ku Zhu, Cong-Jie Gao.  (2014)  Preparation and characterization of sulfated carboxymethyl cellulose nanofiltration membranes with improved water permeability.  DESALINATION,      [PMID:] [10.1016/j.desal.2014.01.025]
7. Sheng Yan, Yunren Qiu.  (2024)  Interfacial Interaction between Functionalization of Polysulfone Membrane Materials and Protein Adsorption.  Polymers,  16  (12): (1637).  [PMID:38931987] [10.3390/polym16121637]
8. Xue-Wu Chen, Liu-Qing Gu, Xin-Yu Zeng, Xin-Yuan Sun, Jian-Ming Ouyang.  (2024)  Sulfated Pelvetia siliquosa Polysaccharides Inhibit CaOx Stone Formation by Inhibiting Calcium Oxalate Crystallization, Cellular Inflammation, and Crystal Adhesion.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:39741421] [10.1021/acs.jafc.4c07044]
9. Xue-Wu Chen, Jun Long, Quan Zhang, Linghong Huang, Xin-Yuan Sun.  (2025)  Sulfated Undaria pinnatifida polysaccharides inhibit kidney stone formation through crystalline modulation and relieving cellular oxidative damage and inflammation.  Biomaterials Science,      [PMID:39928054] [10.1039/D4BM01362J]
10. Bing-Jie Chen, Yong-Jin Qiao, Gang Yu, Xiao Wang, Yi Zhang, Ling-Lin Fu.  (2024)  Sulfation, characterization, antibacterial activity, and action mechanism of rice bran polysaccharides.  Food Bioscience,      [PMID:] [10.1016/j.fbio.2024.103953]
11. Shuqin Xu, Meiling Qiu, Liyuan Liang, Yue Chen, Yajia Wang, Jing Wu, Jinghua Chen.  (2025)  Multifunctions of Sustainable Chondroitin Sulfates with Predominant Subtypes and Low Molecular Weights on Neurite Outgrowth.  BIOMACROMOLECULES,      [PMID:39835408] [10.1021/acs.biomac.4c01713]
12. Ning Yu, Rui Fang, Zhao Ding, Xi Xu, Jianfa Zhang.  (2024)  Preparation and structural characterization of a sulfated octasaccharide with heparin-like anticoagulant activity.  CARBOHYDRATE POLYMERS,      [PMID:39487001] [10.1016/j.carbpol.2024.122782]
13. Shuqin Xu, Xiaoli Tang, Maosen Wang, Zhuqun Wang, Rui Zhan, Jinghua Chen.  (2025)  Stimuli-responsive hydrogels composed of modified cellulose nanocrystal and gelatin with oriented channels for guiding axonal myelination.  CARBOHYDRATE POLYMERS,      [PMID:40049973] [10.1016/j.carbpol.2025.123402]
14. Li Zhenwei, Yan Mi, Su Xu, Lei Wenyang, Han Jinming, Huang Qiushi, Liao Hongxin, Hu Xuebu.  (2025)  A multifunctional polyelectrolyte binder to improve fast charging capability of graphite anode in lithium-ion batteries.  JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,  36  (17): (1-11).  [PMID:] [10.1007/s10854-025-15054-w]
15. Jing Yang, Zhu Liang, Hui Zhao, Jingping Huang, Ying Song, Jingyu Zhu, Yishu Yan, Yuntao Zhu.  (2025)  Nanoparticle-mediated liver targeted delivery of IFN-γ confers enhanced anti-fibrotic efficacy with reduced systemic toxicity.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:41093218] [10.1016/j.ijbiomac.2025.148277]
16. Liu-Jie Qi, Zhao-Qi Zhang, Zhong-Na Zhang, Jing-An Li, Shao-Kang Guan.  (2026)  Theoretical calculation-experimental collaborative design of integrated coating for degradation regulation and diagnosis-treatment of magnesium alloy for cerebrovascular stents.  Journal of Advanced Research,      [PMID:41713732] [10.1016/j.jare.2026.02.028]
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