Abstract: The present invention relates to novel compounds effective as modulators Aryl hydrocarbon receptor (AhR), pharmaceutical composition comprising the compounds for the modulation of AhR, or prevention or treatment of a disease, disorder, or condition associated with AhR activity, as an active ingredient, and thus, can be useful as a medication for the prevention or treatment of a disease, disorder, or condition associated with AhR activity, in particular, cancer, cancerous condition, tumor, fibrotic disease, condition with dysregulated immune responses, etc.

Abstract: The present invention relates to novel compounds effective as modulators Aryl hydrocarbon receptor (AhR), pharmaceutical composition comprising the compounds for the modulation of AhR, or prevention or treatment of a disease, disorder, or condition associated with AhR activity, as an active ingredient, and thus, can be useful as a medication for the prevention or treatment of a disease, disorder, or condition associated with AhR activity, in particular, cancer, cancerous condition, tumor, fibrotic disease, condition with dysregulated immune responses, etc.

Abstract: Provided is a steel for pipes for use in applications such as oil or gas extraction. Particularly, there are provided a steel for pipes having high fatigue resistance, a method of manufacturing the steel, and a welded steel pipe obtained using the steel.

Abstract: The present invention relates to a hot rolled steel plate used for an oil well pipe for development of petroleum or natural gas, a steel pipe manufactured using the same, and a method of manufacturing the same.

Abstract: Provided is a steel for pipes for use in applications such as oil or gas extraction. Particularly, there are provided a steel for pipes having high fatigue resistance, a method of manufacturing the steel, and a welded steel pipe obtained using the steel.

Abstract: Provided is a hot rolled steel sheet for oil country tubular goods (OCTG). The hot rolled steel sheet for oil country tubular goods (OCTG) according to an aspect of the present invention comprises C: 0.08 to 0.18 wt %, Si: 0.10 to 0.50 wt %, Mn: 1.2 to 2.0 wt %, P: 0.020 wt % or less, S: 0.003 wt % or less, Nb: 0.04 to 0.1 wt %, Cr: 0.05 to 0.5 wt %, Ti: 0.01 to 0.05 wt %, B: 0.0005 to 0.003 wt %, Ca: 0.001 to 0.006 wt %, N: 0.008 wt % or less, a balance of Fe and inevitable impurities, and satisfy Relational Expression 1, 16?30[C]+5[Mn]+5[Si]+6[Cr]+600[B]<17.5??[Relational Expression 1] wherein, [C], [Mn], [Si], [Cr] and [B] refer to wt % of each ingredient.