- N-(1-Naphthyl)ethylenediamine dihydrochloride monomethanolate,for spectrophotometric det. of nitrate and nitrite, ≥99%, 25g
- N-(1-Naphthyl)ethylenediamine dihydrochloride monomethanolate,for spectrophotometric det. of nitrate and nitrite, ≥99%, 1g
- N-(1-Naphthyl)ethylenediamine dihydrochloride monomethanolate,for spectrophotometric det. of nitrate and nitrite, ≥99%, 5g