Tartrazine 89%, pure
Supplier: Thermo Scientific Chemicals
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Danger
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Synonyms:
FD and C Yellow No. 5
, Sodium 5-oxo-1-(4-sulphonatophenyl)-4-((4-sulphonatophenyl)diazenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate
, Acid Yellow 23
, Sodium 5-oxo-1-(4-sulfonatophenyl)-4-((4-sulfonatophenyl)diazenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate
, Filter Yellow
19189-1000
19189-5000
TS19189-5000EA
165
USD
TS19189-5000
TS19189-1000
Tartrazine 89%, pure
Tartrazine
Formula:
C₁₆H₁₂N₄O₉S₂ MW: 534.36 g/mol Melting Pt: >300 °C (dec.) Storage Temperature: Ambient |
MDL Number:
MFCD00148908 CAS Number: 1934-21-0 |
Specification Test Results
Appearance | Orange Powder |
Infrared spectrum | Conforms |
Dye content | ≥85 % |
Arsenic (As) | ≤3 ppm |
Cadmium (Cd) | ≤1 ppm |
Lead (Pb) | ≤10 ppm |
Mercury (Hg) | ≤1 ppm |
Heavy metals (as Pb) | ≤40 ppm |
Insoluble matter | ≤0.2 % (in water) |
Volatile matter | ≤15 % chlorides and sulfates (calculated as sodium salts) |
Subsidiary dyes | ≤1 % |
Dye intermediates | ≤0.5 % |
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