B1
B1, B.I, B.1 or B-1 may refer to: == Biology and chemistry == Bradykinin receptor B1, a human protein Cinnamtannin B1, a condensed tannin found in cinnamon Combretastatin B-1, a stilbenoid found in Combretum sp. Fumonisin B1, a toxins produced by several species of Fusarium molds B-1 cell, a lymphocyte type Arecatannin B1, a tannin found in the betel nut Proanthocyanidin B1, a B type proanthocyanidin Vitamin B1, also known as thiamine == Media == B1 TV, a Romanian TV channel A class of FM radio broadcasting in North America == Roads == == Vehicles == Rockwell B-1 Lancer, a United States Air Force strategic bomber B1 (New York City bus) serving Brooklyn B1 type submarine, a World War II Imperial Japanese Navy submarine class Alsace-Lorraine B 1, an Alsace-Lorraine P 1 class steam locomotive Marussia B1, a high-performance luxury sports coupé built by Russian automaker Marussia Motors GS&WR Class B1, a Great Southern and Western Railway Irish steam locomotive HMS B1, a B-class submarine of the Royal Navy LB&SCR B1 class, an 1882 British express passenger steam locomotive GCR Class 8C, classified B1 during LNER ownership, reclassified B18 in 1943 LNER Thompson Class B1, a British steam locomotive class NER Class B1, a class of British steam locomotives NCC Class B1, a Northern Counties Committee Irish steam locomotive Pennsylvania Railroad class B1, an American electric locomotive Saturn B-1, a 1959 four-stage rocket USS B-1, a United States Navy B-class submarine Brasilsat B1, a 1994 communication satellite Char B1, a French heavy tank B1 Centauro, an Italian wheeled tank destroyer Boom XB-1 Baby Boom, an American technology demonstrator aircraft Finnish Steam Locomotive Class B1 == Other uses == B1 (file format) B1 (classification), a medical-based Paralympic classification for blind sport B-1/B-2 Visa, issued by the United States to a foreign citizen seeking to enter the United States of America for business purposes A subclass of B-class stars B1, an international standard paper size (707 × 1000 mm), defined in ISO 216 A level in the Common European Framework of Reference for Languages A security class in the TCSEC the code for permission to use specific land or premises for offices, light industry in town and country planning in the United Kingdom A sentient banana in the children's TV series Bananas in Pyjamas B1, a model of battle droid in the Star Wars franchise B1, Sydney Australia B-Line bus route Chopin's Ballade No.