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S7556

Sigma-Aldrich

Sulfur trioxide pyridine complex

97%

Sinônimo(s):

NSC 75831, Pyridine sulfur trioxide complex

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25 G
R$ 291,00
100 G
R$ 1.005,00
1 KG
R$ 6.004,00

R$ 291,00


Disponível para enviar em17 de abril de 2025Detalhes


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25 G
R$ 291,00
100 G
R$ 1.005,00
1 KG
R$ 6.004,00

About This Item

Fórmula empírica (Notação de Hill):
C5H5NO3S
Número CAS:
Peso molecular:
159.16
Beilstein:
3704116
Número CE:
Número MDL:
Código UNSPSC:
12352303
ID de substância PubChem:
NACRES:
NA.22

R$ 291,00


Disponível para enviar em17 de abril de 2025Detalhes


Solicite uma grande encomenda

Nível de qualidade

Ensaio

97%

adequação da reação

reagent type: oxidant

cadeia de caracteres SMILES

O=S(=O)=O.c1ccncc1

InChI

1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;

chave InChI

UDYFLDICVHJSOY-UHFFFAOYSA-N

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Aplicação

  • 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
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.[1]
As a sulfating agent, SO3-py complex can be used for the preparation of sulfated-chitins[2], sulfated hyaluronan (HyaS) derivatives[3] and sulfated starch.[4]

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Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B

Código de classe de armazenamento

8A - Combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 3

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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