B1, B.I, B.1 or B-1 may refer to:

Biology and chemistry

* Bradykinin receptor B1, a human protein *

Cinnamtannin B1 Cinnamtannin B1 is a condensed tannin found in ''Cinnamomum verum''. It is a type A proanthocyanidin. Cinnamon could have some pharmacological effects in the treatment of type 2 diabetes mellitus and insulin resistance. The plant material u ...

, a condensed tannin found in cinnamon *

Combretastatin B-1 Combretastatin B-1 is a combretastatin and a dihydrostilbenoid Dihydrostilbenoids (bibenzyls) are natural phenols formed from the dihydrostilbene ( bibenzyl) backbone. Examples Dihydro-resveratrol is a natural phenol with a bibenzyl structure ...

, 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 Arecatannin B1 is a B type proanthocyanidin found in the betel nut.Screening of various plant extracts used in Ayurvedic medicine for inhibitory effects on human immunodeficiency virus type 1 (HIV-1) protease. Kusumoto I.T., Nakabayashi T., Kida ...

, a tannin found in the betel nut *

Proanthocyanidin B1 Procyanidin B1 is a procyanidin dimer. It is a molecule with a 4→8 bond (epicatechin-(4β→8)-catechin). Proanthocyanidin-B1 can be found in ''Cinnamomum verum'' (Ceylon cinnamon, in the rind, bark or cortex), in ''Uncaria guianensis'' (cat's c ...

, a B type proanthocyanidin * Vitamin B₁, also known as thiamine

Media

* B1 TV, a Romanian TV network * 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 The , also called was the first group of boats of the Type B cruiser submarines built for the Imperial Japanese Navy (IJN) during the 1940s. In total 20 were built, starting with , which gave the series their alternative name. Design and descri ...

, a World War II Imperial Japanese Navy submarine class *

Alsace-Lorraine B 1 The steam locomotives of Alsace-Lorraine Class B 1 were procured by the Imperial Railways in Alsace-Lorraine in 1871. In 1906 they were reorganised into Class P 1. History When Germany took over the railway network in Alsace-Lorraine followi ...

, an Alsace-Lorraine P 1 class steam locomotive *

Marussia B1 The Marussia B-Series was a series of sports cars built by Russian automaker Marussia Motors (pronounced ma-rus-ya). The series consists of the B1 and the B2; the cars are very similar technically, but are very different in design. The two vehicles ...

, 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 The London, Brighton and South Coast Railway B1 Class is a class of 0-4-2 express passenger steam locomotives, known from the name of the first, No. 214, as the "Gladstones". History They were the last express passenger design of William Str ...

, an 1882 British express passenger steam locomotive * LNER Thompson Class B1, a British steam locomotive * 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

* B1 (archive 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 * Brooklyn's Number One, a 1990s rapper from St Albans, Queens, United States appearing on the Kool G Rap's ''

4,5,6 ''4,5,6'' is the debut studio album by American rapper Kool G Rap, released on September 26, 1995, on Cold Chillin' Records. The release followed his break-up with DJ Polo in 1993. The album was mostly received neutrally among critics, but was war ...

'' 1995 album * A subclass of B- class stars * B1, an international standard paper size (707 × 1000 mm), defined in

ISO 216 ISO 216 is an international standard for paper sizes, used around the world except in North America and parts of Latin America. The standard defines the "A", "B" and "C" series of paper sizes, including A4, the most commonly available paper size ...

* A level in the

Common European Framework of Reference for Languages The Common European Framework of Reference for Languages: Learning, Teaching, Assessment, abbreviated in English as CEFR or CEF or CEFRL, is a guideline used to describe achievements of learners of foreign languages across Europe and, increasing ...

* 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. 1 * The darkest sky on the

Bortle scale The Bortle scale (also known as the Bottle scale) is a nine-level numeric scale that measures the night sky's brightness of a particular location. It quantifies the astronomical observability of celestial objects and the interference caused by lig ...

Biology and chemistry

Media

Roads

Vehicles

Other

See also