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Chemical Name: 5-Ureidohydantoin; Allantion
Alias: (2,5-dioxo-4-imidazolidinyl)-urea
Molecular Formula: 158.12
Structural Formula:
1. Properties
pure product is non-toxic, odorless and non-irritating white crystal, m.p. 226-240°C; soluble in hot water, alcohols and diluted sodium hydroxide solution; slightly soluble in norm-temperature water and alcohols, insoluble in ether and chloroform; pH-value of its saturated aqueous solution (concentration 0.6%)is 5.5; stable with PH 4-9; stable in non-water solution and dry air; can be decomposed in boiling alkali solution and under insolation.
2. Use:
It is an important fine chemicals widely used in pharmacy, light industry, agriculture, daily chemicals and bio-engineering:
1. In Pharmacy: can boost the growth of cells and healing up of wound; also effective to xerodermia, osteomyelitis and hepatocirrhosis etc.
2. In cosmetics: can keep moisture of skin; widely used in freckles cream, shampoo, soap, toothpaste etc.
3. In agriculture: used as plant growth regulator of wheat, rice, vegetables and tea.
Technical Data
|
Item |
Index |
|
1. Appearance |
White powder |
|
2. Smell |
Odorless |
|
3. Assay%≥ |
99.0 |
|
4. PH value（0.5%W.S） |
3.50-6.50 |
|
5. Drying Loss%≤ |
0.20 |
|
6. Sulphuric Acid Ash %< |
0.10 |
|
7. Sulphate%< |
0.02 |
|
8. Chlorides%< |
0.004 |
|
9. Heavy Metal（Pb）%< |
0.001 |
|
10. Substituted glycolurils%< |
0.20 |
|
11. M.P.°C |
decomposed at about 230 °C |
|
12. Density g/cc |
0.70 |