Ninhydrin, Spectrophotometric Grade
Supplier: Thermo Scientific
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Warning
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Synonyms:
Ninhydrin monohydrate, Trioxohydrindene monohydrate, 2,2-Dihydroxyindane-1,3-dione, 2,2-Dihydroxy-1,3-indanedione, Indanetrione hydrate, 2,2-Dihydroxyindan-1,3-dion, 1,2,3-Indantrione monohydrate
165870250
165871000
165875000
ACRO165870250EA
94.1
GBP
ACRO165870250
ACRO165871000
ACRO165875000
Ninhydrin, Spectrophotometric Grade
Ninhydrin
Formula:
C₉H₆O₄ MW: 178,14 g/mol Boiling Pt: 351 °C (1013 hPa) Melting Pt: 250 °C (dec.) Density: 0,862 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00003791 CAS Number: 485-47-2 EINECS: 207-618-1 Merck Index: 13,06582 |
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 | ≤0.5 % (Total) |
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