240656

1,2-Dibromoethane

≥99%

• 동의어(들): EDB, Ethylene dibromide
• Linear Formula: BrCH₂CH₂Br
• CAS Number: 106-93-4
• Molecular Weight: 187.86
• Beilstein: 605266
• EC Number: 203-444-5
• MDL number: MFCD00000233
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24854427
• NACRES: NA.22

속성

• vapor density: ~6.5 (vs air)
• Quality Level: 200
• vapor pressure: 11.7 mmHg ( 25 °C)
• 분석: ≥99%
• 양식: liquid
• refractive index: n20/D 1.539 (lit.)
• bp: 131-132 °C (lit.)
• mp: 8-11 °C (lit.)
• solubility: water: soluble 250 part; alcohol: miscible(lit.); diethyl ether: miscible(lit.)
• density: 2.18 g/mL at 25 °C (lit.)
• 작용기: bromo
• SMILES string: BrCCBr
• InChI: 1S/C2H4Br2/c3-1-2-4/h1-2H2
• InChI key: PAAZPARNPHGIKF-UHFFFAOYSA-N

설명

일반 설명

1,2-Dibromoethane (DBE) is an organobromine compound that is used as an ‘entrainment reagent′ to activate magnesium in Grignard reagents. It is also a useful reagent for activating zinc. DBE is used as an intermediate in the synthesis of dyes, pesticides and pharmaceuticals.

애플리케이션

1,2-Dibromoethane can be used as a reagent to prepare:

• Vinyl bromide and 1,2-disubstituted ethane derivatives.
• Vinyl aromatic compounds by palladium-catalyzed cross-coupling reaction with various arylboronic acids via in situ formation of vinyl bromide.
• 2-arylsulfonyl hydrazones by reacting with aryldiazonium tetrafluoroborates, sulfur dioxide and hydrazines.

It can also be used as a bromine source in organic synthesis to brominate carbanions.

기타 정보

May darken in storage

안전성 정보

• 픽토그램: GHS06,GHS08,GHS09
• 신호어: Danger
• 유해 및 위험 성명서: H301 + H311 + H331,H315,H319,H335,H350,H411
• 예방조치 성명서: P273 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 1B - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter