Chemical Name: 5-Ureidohydantoin; Allantion

Alias: (2,5-dioxo-4-imidazolidinyl)-urea
Molecular Formula: 158.12
Structural Formula:

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1. Properties

pure product is non-toxic, odorless and non-irritating white crystal, m.p. 226-240C; 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%
Nitrogen Content%

99.0
35.00-35.50

4. PH value0.5%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 MetalPb%<

0.001

10. Substituted glycolurils%<

0.20

11. M.P.C

decomposed at about 230 C

12. Density g/cc

0.70


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