USD $6.50-6.60 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $8.80-8.80 / Gram
USD $15.00-50.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $100.00-150.00 / Kilogram
chemical name: | n,n'-di-2-naphthyl-p-phenylenediamine |
molecular formula: | c26h20n2 |
formula weight: | 360.45 |
cas no.: | 93-46-9 |
item |
specification |
specific rotation |
+39.5 to +41.5° |
state of solution(transmittance) |
clear 98.0% min. |
chloride[cl] |
0.020% max. |
ammonium [nh4] |
0.02% max. |
sulfate[so4] |
0.020% max |
iron[fe] |
10ppm max. |
heavy metals [pb] |
10ppm max |
arsenic[as2o3] |
1ppm max |
other amino acids |
chromatographically not detectable |
loss on drying |
0.20% max. |
residue on ignition[sulfated] |
0.10% max. |
assay |
99.0% min |