Pyridine sulfur trioxide China factory CAS NO.26412-87-3

Wuhan Bright Chemical Co., Ltd is set up in 2008. We mainly concentrate on producing, researching and trading electroplating intermediates, 
Fluoro -containing chemicals,Silicone oil, Lithium battery solvent and other fine chemicals. 
Our factory covers an area of 8000sqm. The annual production capability can reach to about two thousand tons. 

We are a professional new-type chemicals enterprise combined into research and development, production and sales.

The company’s competitive product is organic silicone oil, medical intermediates, Fluoro -containing chemicals， plating chemical etc.

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

We are a professional chemical company with more than 10 years of export history, Our main products Methanesulfonic Acid export to USA,UK etc. country with high quality. Our partners include many well-known companies, including DuPont (USA), Mitsubishi (Japan) and many others.

Product  Description

Product Name: Pyridine sulfur trioxide
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
CAS: 26412-87-3
MF: C5H5N.O3S
MW: 159.16
EINECS: 247-683-3
Product Categories: Heterocycle-Pyridine series;Pyridines;Oxidation;Sulfur Compounds (for Synthesis);Synthetic Organic Chemistry
Mol File: 26412-87-3.mol

Pyridine sulfur trioxide Chemical Properties
Melting point  ~160 °C
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
CAS DataBase Reference 26412-87-3(CAS DataBase Reference)
EPA Substance Registry System Pyridine sulfur trioxide (26412-87-3)
Safety Information
Hazard Codes  C
Risk Statements  22-34
Safety Statements  26-36/37/39-45
RIDADR  UN 3261 8/PG 2
WGK Germany  3
F  3-10-21
Autoignition Temperature >350 °C
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29420000
Toxicity LD50 orally in Rabbit: 500 - 2000 mg/kg

Pyridine sulfur trioxide Usage And Synthesis
Chemical Properties white solid
Uses Pyridine-Sulfur Trioxide Complex is used in the sulfation of squid ink polysaccharides (SIPs) as a potential candidate compound for the prevention of tumor metastasis. Pyridine-Sulfur Trioxide Complex is also used in the preparation and anticoagulation test of sulfated silk fibroin.
Uses Usually used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with DMSO.