Advanced Search



Sulfur trioxide pyridine complex

ALDRICH/S7556 - 97%

Synonym: NSC 75831; Pyridine sulfur trioxide complex

CAS Number: 26412-87-3
Empirical Formula (Hill Notation): C5H5NO3S
Molecular Weight: 159.16
EC Number: 247-683-3
MDL Number: MFCD00012437
Linear Formula: C5H5NO3S
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-S7556-25G 25 g
 $46.70
1/EA		 Add To Favorites
45-S7556-100G 100 g
 $122.00
1/EA		 Add To Favorites
45-S7556-1KG 1 kg
 $676.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: S7556-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: S7556-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: S7556-25G

 

assay 97%
InChI 1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
InChI key UDYFLDICVHJSOY-UHFFFAOYSA-N
Quality Level 200 
reaction suitability reagent type: oxidant
SMILES string O=S(=O)=O.c1ccncc1
Application: • Sulfation agent

Reactant for:
• Preparation of azido anologs of pregnanolone
• Sulfate esters of morphine derivatives
• Gold nanoparticles capped with sulfate-ended ligands as anti-HIV agents
Application: Sulfur trioxide-pyridine (SO3-py) complex can be used to convert the allylic or benzylic hydroxyl group of compounds such as geraniol, farnesol, and 1-indanol into sulfate monoester, which is a good leaving group. This method is highly useful in the total synthesis of sesquiterpenes.
As a sulfating agent, SO3-py complex can be used for the preparation of sulfated-chitins, sulfated hyaluronan (HyaS) derivatives and sulfated starch.
Packaging: 1 kg in glass bottle
Packaging: 25, 100 g in glass bottle
Purity 97%
UNSPSC 12352303

The following items have been added to your cart:

Choose a favorite list for this item:
Catalog Number Description Price
$

Returns/Order support

Please fill out the form below if you want to request order support from Krackeler Scientific.


Quick Order

* Required


New Year Price Updates

We are currently working diligently to update our website pricing information for the New Year. If you place an order, you will be acknowledged with any corrected pricing. If you'd like the most current information sooner, please don't hesitate to drop us an email or give us a call and we'd be happy to assist. Thank you for your patience while we are updating.

800-334-7725
office@krackeler.com


Play Video

To Request a Quote

  1. Search or Browse for items and add to them to your Shopping Cart.
  2. Click the "Request Quote" button at the bottom of the Shopping Cart page.
  3. Fill out required fields.
  4. Optionally you can convert to standard checkout mode by choosing a payment type.
  5. Click "Request Quote" at the bottom of the page.

You will be contacted with a quote.

To Order From a Quote

  1. Register and login to the website.
  2. Receive a quote from your sales representative or customer service.
  3. Have your copy of the quote in hand.
  4. Visit our quote module to search for your quote.
Back to Top