α-Bromoisobutyryl bromide , 98% , 20769-85-1

Synonym(s):
2-Bromo-2-methylpropionyl bromide;BIBB

CAS NO.：20769-85-1

Empirical Formula: C4H6Br2O

Molecular Weight: 229.9

MDL number: MFCD00000122

EINECS: 244-017-3

PRODUCT Properties

• Boiling point: 162-164 °C(lit.)
• Density: 1.86 g/mL at 20 °C
• refractive index: n20/D 1.507(lit.)
• Flash point: >110°C
• storage temp.: Store below +30°C.
• solubility: Miscible with acetone and carbon disulfide.
• form: Liquid
• Specific Gravity: 1.860 (20/4℃)
• color: Clear light yellow to yellow
• Water Solubility: reacts
• Sensitive: Moisture Sensitive
• BRN: 1746128
• Stability: Stable, but may react with moisture. Incompatible with water, strong oxidizing agents, strong bases.

Description and Uses

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

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H314
• Precautionary statements: P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
• Hazard Codes: C
• Risk Statements: 22-34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3265 8/PG 2
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• HS Code: 29159080