442597
Formaldehyde-2,4-DNPH
analytical standard
Synonym(s):
Formaldehyde-2,4-dinitrophenylhydrazone
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About This Item
Linear Formula:
H2C=NNHC6H3(NO2)2
CAS Number:
Molecular Weight:
210.15
PubChem Substance ID:
UNSPSC Code:
23151816
Beilstein/REAXYS Number:
750330
MDL number:
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
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.
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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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)
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
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
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 442597 | 04061838081049 |