Ninhydrin, Spectrophotometric Grade
Supplier: Thermo Fisher Scientific
Certificates
About this item
CAS Number:485-47-2
:
Formula:C₉H₆O₄
MDL Number:MFCD00003791
:178.14 g/mol
Merck Index:13,06582
Boiling Pt:351 °C (1013 hPa)
Melting Pt:250 °C (dec.)
Density:0,862 g/cm³ (20 °C)
EINECS:207-618-1
:GHS07
Storage Temperature:Ambient
Specification Test Results
- Appearance:White to light yellow Crystalline powder or crystals
- Infrared spectrum:Conforms
- Sulfated ash:≤0.1 %
- pH:4.0 to 5.6 (1 % in water)
- Suitability:(for amino acid analysis) Passes test
- Specific optical rotation:+13.5° to +15.5° (20°C, 589 nm) (c=10, 6 N HCl) (dried substance)
- Titration with HClO4:98.5 to 101.0 % (dried substance)
- Sulfates:≤300 ppm
- Chlorides:≤200 ppm
- Ammonium (NH4):≤200 ppm
- Iron (Fe):≤10 ppm
- Ninhydrin-positive substances:≤0.10 % (Any ninhydrin-positive substance)