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556971

Sigma-Aldrich

2,4-Dinitrobenzenesulfonic acid hydrate

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About This Item

Formula condensata:
(O2N)2C6H3SO3H · xH2O
Numero CAS:
698999-22-3
Peso molecolare:
248.17 (anhydrous basis)
Numero MDL:
MFCD00066017
Codice UNSPSC:
12352100
ID PubChem:
24879598
NACRES:
NA.22
Per informazioni sul prodotto 556971, contatta il rappresentante o rivenditore Merck di zona. Contatta l'Assistenza Tecnica.

Punto di fusione

95-98 °C (lit.)

Gruppo funzionale

nitro
sulfonic acid

Stringa SMILE

OS(=O)(=O)c1ccc(cc1[N+]([O-])=O)[N+]([O-])=O

InChI

1S/C6H4N2O7S/c9-7(10)4-1-2-6(16(13,14)15)5(3-4)8(11)12/h1-3H,(H,13,14,15)
OVOJUAKDTOOXRF-UHFFFAOYSA-N

Applicazioni

2,4-Dinitrobenzenesulfonic acid hydrate may be used in the synthesis of the corresponding α-hydroxyketone. It can be used as a catalyst in the amidation reaction, which involves the conversion of secondary-benzylic alcohols to N-benzylacetamides.[1] It may also be used to prepare 1-octyl-2-pyrrolidinonium 2,4-dinitrobenzenesulfonate ([NOP][DNBSA]), a Brønsted-acidic ionic liquid, which can catalyze the synthesis of trioxane.[2]

Pittogrammi

Corrosion
GHS05

Avvertenze

Danger

Indicazioni di pericolo

H314

Classi di pericolo

Skin Corr. 1B

Codice della classe di stoccaggio

8A - Combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

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Certificati d'analisi (COA)

Lot/Batch Number
MKCM8197
MKCQ7618
MKCQ2262
MKCN6225
STBH2928

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"The Ritter reaction under truly catalytic Bronsted acid conditions"
Sanz R, et al.
European Journal of Organic Chemistry, 2007(08), 4642-4645 (2007)
"Bronsted-Acidic Ionic Liquids as Catalysts for Synthesizing Trioxane"
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

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

    1 risposta

    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

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