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α-Bromoisobutyryl bromide


2-Bromo-2-methylpropionyl bromide, BIBB
Linear Formula:
CAS Number:
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EC Number:
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refractive index

n20/D 1.507 (lit.)


162-164 °C (lit.)


1.86 g/mL at 25 °C (lit.)

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α-Bromoisobutyryl bromide has been used:
  • as atom transfer radical polymerization (ATRP) initiator for functionalization of hydroxyl groups present on the surface of graphene oxide
  • to form an N-protected halodienamide which provided four- and five-membered lactams in the presence of copper (I) and a tertiary amine
  • in preparation of polycaprolactone macroinitiator via reaction with oligomeric caprolactone diol and mesoporous silica nanoparticles with ATRP initiator anchored on the exterior surface


100, 500 g in glass bottle



Signal Word


Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials



Flash Point(F)

230.0 °F

Flash Point(C)

> 110 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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Ya'nan Deng et al.
Mikrochimica acta, 185(8), 370-370 (2018-07-11)
Poly(2-naphthyl acrylate) was first grafted onto silica-coated magnetic nanoparticles by surface-initiated atom transfer radical polymerization to prepare a reversed-phase magnetic adsorbent. The resulting polymer brush displays enhanced extraction efficiency by offering active sites on the surfaces of adsorbent. It was
Sikai Chen et al.
International journal of biological macromolecules, 153, 364-372 (2020-02-29)
Poultry chicken feather keratin was extracted and then modified for the fabrication of keratin-graft-PNIPAM copolymers. The keratin was well extracted from feather fiber and powdered. Subsequently, it underwent the surficial functionalization process with initiator groups. After the study conducted full
Preparation and characterization of hyperbranched polymer grafted mesoporous silica nanoparticles via self-condensing atom transfer radical vinyl polymerization.
Li X, et al.
Polymer, 51(1), 92-99 (2010)
Andrew J Clark et al.
The Journal of organic chemistry, 72(15), 5923-5926 (2007-07-03)
Reaction of 2-substituted dienamides with catalytic amounts of copper halide/tripyridylamine (TPA) furnishes either 5-exo or 6-endo products with the outcome dependent upon the radical initiating unit. Reaction of 3-substituted dienamides produces beta-lactams via a 4-exo cyclization with termination of the
Sarah Atzet et al.
Biomacromolecules, 9(12), 3370-3377 (2008-12-09)
Biodegradable poly(2-hydroxyethyl methacrylate)(pHEMA) hydrogels for engineered tissue constructs were developed by the use of atom transfer radical polymerization (ATRP), a degradable cross-linker, and a macroinitiator. Hydrogels are appropriate materials for tissue engineering scaffolds because of their tissue-like mechanical compliance and


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