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Formaldehyde-2,4-DNPH

analytical standard

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Synonym(s):
Formaldehyde-2,4-dinitrophenylhydrazone
Linear Formula:
H2C=NNHC6H3(NO2)2
CAS Number:
1081-15-8
Molecular Weight:
210.15
Beilstein:
750330
MDL number:
MFCD00191364
UNSPSC Code:
12000000
PubChem Substance ID:
24867923

grade

analytical standard

CofA

current certificate can be downloaded

feature

standard type calibration

packaging

ampule of 100 mg

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

153-156 °C (lit.)

application(s)

environmental

format

neat

storage temp.

2-30°C

SMILES string

[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

InChI key

UEQLSLWCHGLSML-UHFFFAOYSA-N

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General description

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

Application

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.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
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
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)
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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