88461
2,3-Diaminonaphthalene
BioReagent, suitable for fluorescence, ≥98.0% (HPLC)
Synonym(s):
naphthalene-2,3-diamine, 2,3-Naphthalenediamine, DAN
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About This Item
Empirical Formula (Hill Notation):
C10H10N2
CAS Number:
Molecular Weight:
158.20
UNSPSC Code:
12171500
NACRES:
NA.32
PubChem Substance ID:
EC Number:
212-241-0
Beilstein/REAXYS Number:
2206394
MDL number:
product line
BioReagent
Quality Level
assay
≥98.0% (HPLC)
form
solid
mp
196-202 °C
fluorescence
λex 364 nm; λem 406 nm in 0.5 M Na carbonate pH 10.0 (after derivatization with NaNO2 in 0.1 M HCl)
suitability
suitable for fluorescence
SMILES string
Nc1cc2ccccc2cc1N
InChI
1S/C10H10N2/c11-9-5-7-3-1-2-4-8(7)6-10(9)12/h1-6H,11-12H2
InChI key
XTBLDMQMUSHDEN-UHFFFAOYSA-N
General description
2,3-Diaminonaphthalene, also known as 2,3 DAN, is an aromatic diamino fluorescent compound designed for carrying out DAN assays. Reacting with nitrite, 2,3 DAN forms the fluorescent product, 3-naphthotriazole (NAT), determined fluorometrically.
Application
2,3-Diaminonaphthalene or DAN is suitable for fluorescence-spectroscopic determination of nitrite/ nitrate in milk and soy based food products.
DAN is used in the fluorometric determination of selenium in biological materials.
DAN is used in the fluorometric determination of selenium in biological materials.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Analysis Note
In addition to the emission maximum at 406 nm, there are lower maxima at 426, 386 and 450 nm
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Stefan Ehling et al.
Journal of AOAC International, 100(6), 1831-1835 (2017-07-02)
Nitrite (NO2-) is an inorganic anion that can be found in various powdered milk- and soy-based nutritional ingredients as an incidental contaminant. Reliable determination of NO2- in nutritional ingredients is of paramount importance to ensure the safety of finished products.
A M Serra et al.
Talanta, 81(1-2), 572-577 (2010-03-02)
In the present work, a solid phase extraction (SPE) is hyphenated with an automatic MSFIA system to improve the selenite determination based on the reaction of selenite with aromatic o-diamines (such as 2,3-diaminonaphthalene (DAN)) to form the piazselenol complex. This
Jinghe Yang et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 58(8), 1775-1778 (2002-08-09)
The molecular recognition properties of calixarenes to 2,3-diaminonaphthalene (DAN) were investigated. We found that the fluorescence emission of DAN has a blue shift after p-sulfonic sodium calix[4]arece (SSCA) was added to DAN. The proposed mechanism of the molecular recognition between