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D199303

Sigma-Aldrich

2,4-Dinitrofenilhidracina

reagent grade, 97%

Sinónimos:

(2,4-dinitrophenyl)-hydrazine, DNPH

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About This Item

Fórmula lineal:
(O2N)2C6H3NHNH2
Número de CAS:
119-26-6
Peso molecular:
198.14
Beilstein:
615586
Número MDL:
MFCD00007578
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
24893586
NACRES:
NA.21
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grado

reagent grade

Nivel de calidad

200

Ensayo

97%

contiene

33% water (minimum)

mp

197-200 °C (lit.)

grupo funcional

hydrazine
nitro

cadena SMILES

NNc1ccc(cc1[N+]([O-])=O)[N+]([O-])=O

InChI

1S/C6H6N4O4/c7-8-5-2-1-4(9(11)12)3-6(5)10(13)14/h1-3,8H,7H2

Clave InChI

HORQAOAYAYGIBM-UHFFFAOYSA-N

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Descripción general

La 2,4-dinitrofenilhidracina (DNPH), un derivado de la hidracina, es un posible mutágeno. Se ha analizado su estructura molecular y cristalina.[1] Los enlaces de hidrógeno intramoleculares e intermoleculares en la DNPH han sido investigados mediante análisis espectroscópico vibracional.[2] El mecanismo de degradación isotérmica de la DPHN ha sido estudiado por calorimetría diferencial de barrido (DSC).[3]

Aplicación

La 2,4-dinitrofenilhidracina se ha utilizado como reactivo para detectar la presencia de aldehídos y cetonas en los carbonilos proteicos.[4][5][6] Puede utilizar como reactivo colorimétrico en la estimación cuantitativa de la prednisona.[7]

Envase

500 g contiene un peso total del producto húmedo de ~485 g. La diferencia se debe a la adición de agua para cumplir con los requisitos del DOT.

Pictogramas

FlameExclamation mark
GHS02,GHS07

Palabra de señalización

Danger

Frases de peligro

H206,H302

Clasificaciones de peligro

Acute Tox. 4 Oral - Desen. Expl. 1

Riesgos supl.

EUH044

Código de clase de almacenamiento

4.1A - Other explosive hazardous materials

Clase de riesgo para el agua (WGK)

WGK 3

Equipo de protección personal

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

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Certificados de análisis (COA)

Lot/Batch Number
0000412358
0000412358
0000409138
0000409137
0000400119

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2-Nitrophenylhydrazine 97%

Sigma-Aldrich

N21588

2-Nitrophenylhydrazine

Kinetic analysis of isothermal decomposition of 2, 4-dinitrophenylhydrazine using differential scanning calorimetry.
Musuc AM, et al.
Thermochimica Acta, 448(2), 130-135 (2006)
2,4-dinitrophenylhydrazine: a sensitive quantitative reagent for determining microgram quantities of prednisone.
A L Woodson
Journal of pharmaceutical sciences, 60(10), 1538-1542 (1971-10-01)
Journal of the American Oil Chemists' Society, 70, 881-881 (1993)
J. Chem. Soc. Pak., 14, 73-73 (1992)
Clare L Hawkins et al.
Free radical biology & medicine, 46(8), 965-988 (2009-05-15)
Proteins are major targets for oxidative damage due to their abundance and rapid rates of reaction with a wide range of radicals and excited state species, such as singlet oxygen. Exposure of proteins to these oxidants results in loss of
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Questions

1–4 of 4 Questions  

  1. 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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  2. 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

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  3. Before use, is it necessary to dry off the water content in this reagent? If so, what would be the temperature and how long without triggering degradation of the reagent?

    1 answer

    1. This product is intentionally provided as a moist powder, with at least 33% water by weight. The material may be safely handled in the moistened state, but not as a dry powder. The recommendation would be to NOT dry off the water content.

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  4. We have this product (D199303-500G) on our site and want to dispose of it . Can you please give us instructions on how to dispose the product safely ?

    1 answer

    1. Please refer to section 13 of the Safety Data Sheet for disposal information. Consult with facility or municipal EHS authorities to assure proper guidelines are followed. See the link below to review the SDS:
      https://www.sigmaaldrich.com/sds/aldrich/d199303

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