CREATE TABLE table_15541 ("Region" CLOB, "Date" CLOB, "Label" CLOB, "Format" CLOB, "Catalog" CLOB)

What is the catalog number of Alfa records?
SELECT "Catalog" FROM table_15541 WHERE "Label" = 'alfa records'
SELECT "Catalog" FROM "table_15541" WHERE "Label" = 'alfa records'