Complaint
Allantoin / Alantan ( 5-Ureidohydantoin)
CAS No.97-59-6
Chemical Name: 5-Ureidohydantoin; Allantoin
Alias: (2,5-dioxo-4-imidazolidinyl)-urea
Molecular Formula: 158.12
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.Specification:
ITEM | PREMIUM GRADE | FIRST GRADE |
Appearance | White crystalline powder | White crystalline powder |
Assay | 100~101.5% min | 99.0~100% min |
PH | 5~6 | 5~6 |
Heavy metals | 1ppm max | 10ppm max |
SO42- | 1ppm max | 10ppm max |
Cl-(Chloride) | 0.01% Max | 0.05% Max |
Ashes | 0.1% Max | 0.1% Max |
Loss on drying | 0.1% Max | 0.2% Max |
3.Application:
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.
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