Luminol
Yellow crystalline powder. Easily soluble in lye, soluble in dilute acid, almost insoluble in water, and insoluble in alcohol. Neutral or slightly acidic solutions exhibit strong bright blue fluorescence when exposed to ultraviolet light. For chemiluminescence analysis, such as: metal cations, blood and glucocorticoids. By 3-nitrophthalic acid by cyclization, derived from reduction. 3-Nitrophthalic acid was added to 8% aqueous hydrazine solution, and the solid was dissolved by heating. Add ethylene glycol, evaporate the excess water in the solution in an evaporator, heat at 215-220°C for 2min, Chemicalbook closes the heterocyclic ring, and cools to obtain a yellow nitro compound. Cool, add 10% sodium hydroxide solution, stir, add sodium dithionate, heat to boiling, keep the temperature for 5 min, add acetic acid again, and cool to obtain a bright yellow product. After standing overnight, the product was obtained by filtration.
| Payment & Shipping Terms | Supply Capacity | ||
|---|---|---|---|
| Payment Terms: | T/T, WU | Production Capacity: | 600T/year |
| Min. Order: | 25KG | Packing: | according to the customer's requirements |
| Means of Transport: | Ocean, Air, Land | Delivery Date: | 7 days |
Luminol
CAS 521-31-3
Yellow crystalline powder. Easily soluble in lye, soluble in dilute acid, almost insoluble in water, and insoluble in alcohol. Neutral or slightly acidic solutions exhibit strong bright blue fluorescence when exposed to ultraviolet light. For chemiluminescence analysis, such as: metal cations, blood and glucocorticoids. By 3-nitrophthalic acid by cyclization, derived from reduction. 3-Nitrophthalic acid was added to 8% aqueous hydrazine solution, and the solid was dissolved by heating. Add ethylene glycol, evaporate the excess water in the solution in an evaporator, heat at 215-220°C for 2min, Chemicalbook closes the heterocyclic ring, and cools to obtain a yellow nitro compound. Cool, add 10% sodium hydroxide solution, stir, add sodium dithionate, heat to boiling, keep the temperature for 5 min, add acetic acid again, and cool to obtain a bright yellow product. After standing overnight, the product was obtained by filtration.
| Appearance | Off-white to light yellow powder | Conform |
|---|---|---|
| Assay | ≥98.0% | 99.40% |
| Loss on drying | ≤8.0% | 0.32% |
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| CAS Number | 521-31-3 |
|---|---|
| Melting point | >300℃(lit.) |
| Boiling point | 309.07℃(rough estimate) |
| Density | 1.3393 (rough estimate) |
| Refractive index | 1.6500 (estimate) |
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