0001019687-09-001095 10-K 4 20081231 20090330 20090330 ALLEGRO BIODIESEL CORP 0000895380 2860 205748331 DE 1231 10-K 34 000-21982 09714472 6033 W. CENTURY BLVD SUITE 1090 LOS ANGELES CA 90045 3106702093 6033 W. CENTURY BLVD SUITE 1090 LOS ANGELES CA 90045 DIAMETRICS MEDICAL INC 19930624 10-K 1 allegro_10k-123108.htm ALLEGRO BIODIESEL CORP. EX-21.1 2 allegro_10k-ex21.htm SUBSIDIARIES EX-31.1 3 allegro_10k-ex31.htm CERTIFICATION EX-32.1 4 allegro_10k-ex32.htm CERTIFICATION