The Biuret with CAS registry number of 108-19-0 is also known as Allophanic acid amide. The IUPAC name is Carbamoylurea. It belongs to product categories of General Protein Quantitation; Protein Quantitation; Quantitation Kits and Reagents. Its EINECS registry number is 203-559-0. In addition, the formula is C₂H₅N₃O₂ and the molecular weight is 103.08. This chemical is a white crystal and should be stored in cool, ventilate room away from strong oxidants, alkali and heat.

Physical properties about Biuret are: (1)ACD/LogP: -2.14; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): -2.14; (4)ACD/LogD (pH 7.4): -2.15; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1.63; (8)ACD/KOC (pH 7.4): 1.61; (9)#H bond acceptors: 5; (10)#H bond donors: 5; (11)#Freely Rotating Bonds: 0; (12)Index of Refraction: 1.524; (13)Molar Refractivity: 22.03 cm³; (14)Molar Volume: 71.9 cm³; (15)Surface Tension: 69.6 dyne/cm; (16)Density: 1.432 g/cm³; (17)Flash Point: 170.4 °C; (18)Enthalpy of Vaporization: 69.88 kJ/mol; (19)Boiling Point: 358.2 °C at 760 mmHg; (20)Vapour Pressure: 1.43E-06 mmHg at 25 °C.

Preparation of Biuret: it is prepared by heating urea and ammonia is expelled at the temperature.

2CO(NH₂)₂ → H₂N-CO-NH-CO-NH₂ + NH₃

Uses of Biuret: it is used as pharmaceutical intermediate, growth hormone, blowing agent and paint. It is also used to produce 1-nitro-biuret. The reaction occurs with reagents 96% sulfuric acid, 70% nitric acid for 1.5 hours. The yield is about 47%.

When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system and skin. During using it, wear suitable protective clothing and gloves. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: C(=O)(N)NC(=O)N
2. InChI: InChI=1S/C2H5N3O2/c3-1(6)5-2(4)7/h(H5,3,4,5,6,7)
3. InChIKey: OHJMTUPIZMNBFR-UHFFFAOYSA-N