The 3-Chlorothiophene-2-carboxamide, with the CAS registry number 147123-68-0, is also known as 2-Thiophenecarboxamide, 3-chloro-. This chemical's molecular formula is C₅H₄ClNOS and molecular weight is 161.61. Its systematic name is called 3-chlorothiophene-2-carboxamide.

Physical properties of 3-Chlorothiophene-2-carboxamide: (1)ACD/LogP: 0.77; (2)ACD/LogD (pH 5.5): 0.77; (3)ACD/LogD (pH 7.4): 0.77; (4)ACD/BCF (pH 5.5): 2.26; (5)ACD/BCF (pH 7.4): 2.26; (6)ACD/KOC (pH 5.5): 62.31; (7)ACD/KOC (pH 7.4): 62.31; (8)#H bond acceptors: 2; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 1; (11)Index of Refraction: 1.619; (12)Molar Refractivity: 38.46 cm³; (13)Molar Volume: 109.5 cm3; (14)Surface Tension: 56.7 dyne/cm; (15)Density: 1.475 g/cm³; (16)Flash Point: 134.2 °C; (17)Enthalpy of Vaporization: 53.83 kJ/mol; (18)Boiling Point: 298.3 °C at 760 mmHg; (19)Vapour Pressure: 0.00128 mmHg at 25°C.

Preparation: this chemical can be prepared by 3H-thieno[3,2-d][1,2,3]triazin-4-one. This reaction will need reagent phosphorus pentachloride, phosphoryl chloride. The reaction time is 1 hour. The yield is about 21%.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(N)c1sccc1Cl
(2)InChI: InChI=1/C5H4ClNOS/c6-3-1-2-9-4(3)5(7)8/h1-2H,(H2,7,8)
(3)InChIKey: PUKKVMZZENXNSR-UHFFFAOYAD