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88461

Sigma-Aldrich

2,3-Diaminonaphthalene

BioReagent, suitable for fluorescence, ≥98.0% (HPLC)

Synonyme(s) :

naphthalene-2,3-diamine, 2,3-Naphthalenediamine, DAN

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About This Item

Formule empirique (notation de Hill):
C10H10N2
Numéro CAS:
771-97-1
Poids moléculaire :
158.20
Numéro Beilstein :
2206394
Numéro CE :
212-241-0
Numéro MDL:
MFCD00004116
Code UNSPSC :
12171500
ID de substance PubChem :
57653309
Nomenclature NACRES :
NA.32

Gamme de produits

BioReagent

Niveau de qualité

100

Pureté

≥98.0% (HPLC)

Forme

solid

Pf

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)

Adéquation

suitable for fluorescence

Chaîne SMILES 

Nc1cc2ccccc2cc1N

InChI

1S/C10H10N2/c11-9-5-7-3-1-2-4-8(7)6-10(9)12/h1-6H,11-12H2

Clé InChI

XTBLDMQMUSHDEN-UHFFFAOYSA-N

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Description générale

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.

Conditionnement

Bottomless glass bottle. Contents are inside inserted fused cone.

Remarque sur l'analyse

In addition to the emission maximum at 406 nm, there are lower maxima at 426, 386 and 450 nm

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H302,H315,H319,H335

Classification des risques

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

T S Koh et al.
Journal - Association of Official Analytical Chemists, 66(4), 918-926 (1983-07-01)
The reaction of 2,3-diaminonaphthalene (DAN) with Se(IV) to form a fluorescent Se-DAN complex is the basis of a fluorometric method for determination of Se. With the aid of metabolically incorporated 75Se the method was critically re-examined. The study showed that
Yanming Shen et al.
Analytical chemistry, 87(2), 1274-1280 (2014-12-19)
Nitrite is a heavily assayed substrate in the fields of food safety, water quality control, disease diagnosis, and forensic investigation and more recently in basic biological studies on nitric oxide physiology and pathology. The colorimetric Griess assay and the fluorimetric
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
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.
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
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