The 5-(Thiophen-2-yl)-1H-pyrazole, with the CAS registry number 219863-71-5, is also known as 1H-Pyrazole, 3-(2-thienyl)-. This chemical's molecular formula is C₇H₆N₂S and molecular weight is 150.2009. What's more, its systematic name is called 5-(Thiophen-2-yl)-1H-pyrazole.

Physical properties about 5-(Thiophen-2-yl)-1H-pyrazole are: (1)ACD/LogP: 1.88; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.88; (4)ACD/LogD (pH 7.4): 1.88; (5)ACD/BCF (pH 5.5): 15.78; (6)ACD/BCF (pH 7.4): 15.79; (7)ACD/KOC (pH 5.5): 250.73; (8)ACD/KOC (pH 7.4): 250.82; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 46.06 Å²; (13)Index of Refraction: 1.641; (14)Molar Refractivity: 41.75 cm³; (15)Molar Volume: 115.7 cm³; (16)Surface Tension: 56.6 dyne/cm; (17)Density: 1.297 g/cm³; (18)Flash Point: 167.8 °C; (19)Enthalpy of Vaporization: 56.46 kJ/mol; (20)Boiling Point: 344 °C at 760 mmHg; (21)Vapour Pressure: 0.000135 mmHg at 25 °C.

Preparation of 5-(Thiophen-2-yl)-1H-pyrazole: this chemical can be prepared by E-3-Dimethylamino-1-(2-thienyl)propenone. This reaction needs reagent Hydrazine hydrate, solvent Ethanol and other condition of heating for 3 hours. The yield is 71 %.

You can still convert the following datas into molecular structure:
(1) SMILES: n1ccc(n1)c2sccc2
(2) InChI: InChI=1/C7H6N2S/c1-2-7(10-5-1)6-3-4-8-9-6/h1-5H,(H,8,9)
(3) InChIKey: TVNDPZYOQCCHTJ-UHFFFAOYAK