American Apparel Inc. has opened a new location at the Westfield Topanga Shopping Mall in Canoga Park. The 3,300-square-foot store is located on the first floor of the shopping center, next to an Urban Outfitters outlet. It’s the second store the Los Angeles-based apparel manufacturer and retailer operates in the San Fernando Valley, with the other on Ventura Boulevard in Studio City. Marsha Brady, creative director for American Apparel, said the shopping center in Canoga Park is an ideal spot for the company’s products. “This is a busy shopping center with great customers and now they’ll be able to shop American Apparel without an additional drive,” she said in a statement. American Apparel operates 251 retail stores in 20 countries, in addition to an e-commerce site. Shares of American Apparel dropped 7 cents, or 3.1 percent, to $2.04 on the New York Stock Exchange.