Customization: | Available |
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CAS No.: | 97-59-6 |
Formula: | C4h6n4o3 |
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Allantoin is a chemical compound with formula C4H6N4O3. It is also called 5-ureidohydantoin or glyoxyldiureide. It is a diureide of glyoxylic acid.
Named after the allantois (an amniote embryonic excretory organ in which it concentrates during development in most mammals except humans and higher apes), it is a product of oxidation of uric acid by purine catabolism. After birth, it is the predominant means by which nitrogenous waste is excreted in the urine of these animals.In humans and higher apes, the metabolic pathway for conversion of uric acid to allantoin is not present, so the former is excreted. Recombinant rasburicase is sometimes used as a drug to catalyze this metabolic conversion in patients. In fish, allantoin is broken down further (into ammonia) before excretion. Allantoin is a major metabolic intermediate in many other organisms including plants and bacteria.
Product name | Allantoin |
Alias | 5-Ureidohydantoin; Glyoxyldiureide; Glyoxylic diureide; Cordianine; Glyoxyldiureid; (2,5-Dioxo-4-imidazolidinyl)urea |
Molecular formula | C4H6N4O3 |
Molecular weight | 158.12 |
CAS RN | 97-59-6 |
EINECS No. | 202-592-8 |
Item I | Industial Grade | Daily Chemical Grade | Pharmaceutical Grade |
Properties | White crystalline powder, no odor and taste | ||
Identification: IR | / | Qualified | Qualified |
Content (potentiometric titration), % | ≥98.5 | 98.0~102.0 | 98.0~101.0 |
Melting point, ºC | ≥223 | ≥225 | ≥225 |
Drying loss, % | ≤0.2 | ≤0.15 | ≤0.1 |
Residue on ignition, % | ≤0.1 | ≤0.1 | ≤0.1 |
pH vlue (0.5% aqueous solution, 25ºC) | 4.0~6.0 | 4.0~6.0 | / |
Optical rotation (0.5% aqueous solution) | / | -0.10°-+0.10° | -0.10°-+0.10° |
Acidity and alkalinity | / | / | Qualified |
Reducing sustances | / | Qualified | Qualified |
Related substances (TLC) | / | / | Qualified |
Arsenic (As), % | ≤0.0002 | ≤0.0002 | ≤0.0002 |
Lead (Pb), % | ≤0.001 | ≤0.001 | ≤0.001 |
Solubility | 1. Solubility increases significantly with the raising of temperature (25ºC, 5.7g/L;40ºC, 11g/L;75ºC, 40g/L) 2. Poorly soluble in propylene glycol, ethyl alcohol and glycerin |
Packing & Shipment
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pharmaceutical and/or food standards.
5) Warehousing and storage: Clear and dry condition with suitable temperature.
6) Transportation - Audit and supervise the logistics environment to ensure storage safety.
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