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Documenti fondamentali

442597

Supelco

Formaldehyde-2,4-DNPH

analytical standard

Sinonimo/i:

Formaldehyde-2,4-dinitrophenylhydrazone

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About This Item

Formula condensata:
H2C=NNHC6H3(NO2)2
Numero CAS:
Peso molecolare:
210.15
Beilstein:
750330
Numero MDL:
Codice UNSPSC:
12000000
ID PubChem:

Grado

analytical standard

CdA

current certificate can be downloaded

Caratteristiche

standard type calibration

Confezionamento

ampule of 100 mg

tecniche

HPLC: suitable
gas chromatography (GC): suitable

Punto di fusione

153-156 °C (lit.)

applicazioni

environmental

Formato

neat

Temperatura di conservazione

2-30°C

Stringa SMILE

[O-][N+](=O)c1ccc(NN=C)c(c1)[N+]([O-])=O

InChI

1S/C7H6N4O4/c1-8-9-6-3-2-5(10(12)13)4-7(6)11(14)15/h2-4,9H,1H2
UEQLSLWCHGLSML-UHFFFAOYSA-N

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Descrizione generale

Formaldehyde 2,4-dinitro­phenyl­hydrazone (C7H6N4O4) is a planar molecule and the nitro groups are almost coplanar with the benzene ring.[1]

Applicazioni

Formaldehyde-2,4-DNPH may be used as an analytical standard for the determination of the analyte in air samples, food and feed products, and aquatic products by various chromatography techniques.[2][3][4][5][6]
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Pittogrammi

Exclamation mark

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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Certificati d'analisi (COA)

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Trace determination of carbonyl compounds in air by gas chromatography of their 2, 4-dinitrophenylhydrazones
Smith RA and Drummond I
Analyst, 104(1242), 875-877 (1979)
P Wahed et al.
Food chemistry, 202, 476-483 (2016-02-28)
Formalin is carcinogenic and is detrimental to public health. The illegal addition of formalin (37% formaldehyde and 14% methanol) to foods to extend their shelf-life is considered to be a common practice in Bangladesh. The lack of accurate methods and
High performance liquid chromatographic determination of formaldehyde in milk
Kaminski J, et al.
Journal of Liquid Chromatography and Related Technologies, 16(2), 521-526 (1993)
F Sandner et al.
International journal of hygiene and environmental health, 203(3), 275-279 (2001-03-31)
The toxic potential of formaldehyde and other aliphatic/aromatic carbonyl compounds requires the determination of even low amounts of these compounds in indoor air. The existing DFG-method for workplace monitoring using adsorption at 2,4-dinitrophenylhydrazine (DNPH)-coated sorbents followed by HPLC-UV/DAD analysis of
Shigehisa Uchiyama et al.
Journal of chromatography. A, 996(1-2), 95-102 (2003-07-02)
The most widely used method for qualitative and quantitative analysis of carbonyl compounds is the 2,4-dinitrophenylhydrazine method through the formation of 2,4-dinitrophenylhydrazone derivatives. However, this method may cause an analytical error because 2,4-dinitrophenylhydrazones have both E- and Z-stereoisomers. Purified aldehyde-2,4-dinitrophenylhydrazone

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