BlackRock MuniYield Quality Fund, Inc. is a close ended fixed income mutual fund launched by BlackRock, Inc. It is managed by BlackRock Advisors, LLC. The fund invests in fixed income markets. It invests in long-term municipal obligations the interest on which is exempt from federal income taxes. The fund also invests in short-term securities. BlackRock MuniYield Quality Fund, Inc. was formed on July 21, 1992 and is domiciled in United States.