Carbazochrome Sodium Sulfonate Hydrate
Carbazochrome Sodium Sulfonate Hydrate
Product name Monosodium (2RS)-1-methyl-6-oxo-5-semicarbazono-2,3,5,6-tetrahydroindole-2-
sulfonate trihydrate
Structure
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Molecular Formula C10H11N4NaO5S·3H2O
Molecular Weight 376.32
CAS Number 51460-26-5
SFDA approval No. H20054505
Standards： JP17
|
Test |
JP |
Results |
|
Color & Appearance |
Orange-yellow crystals or crystalline powder |
Orange-yellow crystalline powder |
|
Solubility |
It is sparingly soluble in water, very slightly soluble in methanol and ethanol (95), and practically insoluble in diethyl ether |
Conforms |
|
Melting point |
210℃ (with decomposition) |
210℃ |
|
Infrared spectrum |
consistent with the structure |
Conforms |
|
pH |
5.0 ~6.0 |
5.6 |
|
Heavy metals(as Pb) |
NMT 20 ppm |
NMT 20 ppm |
|
Water content |
13.0%~16.0% |
14.5 % |
|
Assay (uv) |
98.0%~102.0 % |
99.6 % |
|
Impurities ( total ) |
NMT 1.0 % |
Conforms |
Package: 1kg
Storage：store in well-closed containers at room temperature.