88461

2,3-Diaminonaphthalene

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

• Synonym(s): naphthalene-2,3-diamine, 2,3-Naphthalenediamine, DAN
• Empirical Formula (Hill Notation): C₁₀H₁₀N₂
• CAS Number: 771-97-1
• Molecular Weight: 158.20
• Beilstein/REAXYS Number: 2206394
• EC Number: 212-241-0
• MDL number: MFCD00004116
• UNSPSC Code: 12171500
• PubChem Substance ID: 57653309
• NACRES: NA.32

Properties

• product line: BioReagent
• Quality Level: 100
• assay: ≥98.0% (HPLC)
• form: solid
• mp: 196-202 °C
• fluorescence: λ_ex 364 nm; λ_em 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

Description

General description

2,3-Diaminonaphthalene, also known as 2,3 DAN, is an aromatic diamino fluorescent compound designed for carrying out DAN assays.[1] 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.[2]

DAN is used in the fluorometric determination of selenium in biological materials.[3]

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

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302,H315,H319,H335
• pcodes: P261 - P264 - P271 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• 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_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves