Specification Sheet
Product Name 2,3-Diaminonaphthalene,
BioReagent, suitable for fluorescence, ≥98.0% (HPLC)
Product Number 88461
Product Brand SIGMA
CAS Number 771-97-1
Molecular Weight 158.20
 
TEST SPECIFICATION
APPEARANCE (COLOR) White to Brown
APPEARANCE (FORM) Powder or Crystals
TITRATION (NT) HCLO4 0.1M 98.0 - 102.0 %
PURITY (HPLC AREA %) ≥ 98.0 %
MELTING POINT 197 - 203 C
CARBON CONTENT 75.92 % (THEORY)
HYDROGEN CONTENT 6.37 % (THEORY)
NITROGEN CONTENT 17.71 % (THEORY)
PROTON NMR SPECTRUM CONFORMS TO STRUCTURE
EMISSION MAXIMUM 406 ± 5 nm