The Urapidil, with the CAS registry number 34661-75-1, is also known as 6-({3-[4-(2-Methoxyphenyl)piperazin-1-yl]propyl}amino)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione. It belongs to the product category of API's. Its EINECS registry number is 252-130-4. This chemical's molecular formula is C₂₀H₂₉N₅O₃ and molecular weight is 387.48. What's more, its IUPAC name is called 6-[3-[4-(2-Methoxyphenyl)piperazin-1-yl]propylamino]-1,3-dimethylpyrimidine-2,4-dione. It is a sympatholytic antihypertensive drug.

Physical properties about Urapidil are: (1)ACD/LogP: 2.28; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.92; (4)ACD/LogD (pH 7.4): 0.18; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 3.28; (9)#H bond acceptors: 8; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 7; (12)Polar Surface Area: 59.57 Å²; (13)Index of Refraction: 1.622; (14)Molar Refractivity: 108.32 cm³; (15)Molar Volume: 307.4 cm³; (16)Surface Tension: 58.9 dyne/cm; (17)Density: 1.26 g/cm³; (18)Flash Point: 285.8 °C; (19)Enthalpy of Vaporization: 82.87 kJ/mol; (20)Boiling Point: 549 °C at 760 mmHg; (21)Vapour Pressure: 4.22E-12 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C1\C=C(/N(C(=O)N1C)C)NCCCN3CCN(c2ccccc2OC)CC3
(2) InChI: InChI=1S/C20H29N5O3/c1-22-18(15-19(26)23(2)20(22)27)21-9-6-10-24-11-13-25(14-12-24)16-7-4-5-8-17(16)28-3/h4-5,7-8,15,21H,6,9-14H2,1-3H3
(3) InChIKey: ICMGLRUYEQNHPF-UHFFFAOYSA-N

The toxicity data is as follows: