| abstract |
Provided is a hydrogenated conjugated diene rubber capable of obtaining a crosslinked rubber having high strength and excellent low fuel efficiency and a rubber composition having excellent processability. It is a hydrogenated conjugated diene-based rubber having a hydrogenation rate of 90% or more of a butadiene unit, and in the molecular weight distribution obtained by gel permeation chromatography of the hydrogenated-conjugated diene-based rubber, the peak area of a molecular weight of 1,000 to 250,000 is AL, and the molecular weight When the peak area of 250,000 or more is set as AH, the ratio of AL to the total area of AL and AH is 0.5% or more and 20% or less. |