452920

Trimethyl borate

≥98%

• 동의어(들): Boric acid trimethyl ester, Methyl borate
• Linear Formula: B(OCH₃)₃
• CAS Number: 121-43-7
• Molecular Weight: 103.91
• Beilstein: 1697939
• EC Number: 204-468-9
• MDL number: MFCD00008346
• UNSPSC 코드: 12352103
• PubChem Substance ID: 24868738
• NACRES: NA.22

속성

• vapor density: 3.59 (vs air)
• Quality Level: 200
• 분석: ≥98%
• refractive index: n20/D 1.346 (lit.)
• bp: 68-69 °C (lit.)
• mp: −34 °C (lit.)
• density: 0.932 g/mL at 20 °C (lit.)
• SMILES string: COB(OC)OC
• InChI: 1S/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3
• InChI key: WRECIMRULFAWHA-UHFFFAOYSA-N

설명

애플리케이션

Trimethyl borate reacts with a Grignard reagent or organolithium compounds to yield dimethyl boronates, which upon subsequent aqueous acid treatment afford corresponding boronic acids. The resultant boronic acids or esters are useful intermediates in various cross-coupling reactions such as Suzuki coupling and Chan-Lam coupling. It is also used in the preparation of sodium borohydride.

법적 정보

ASCENSUS product

안전성 정보

• 픽토그램: GHS02,GHS06,GHS08
• 신호어: Danger
• 유해 및 위험 성명서: H225,H301 + H311 + H331,H319,H360FD,H370
• 예방조치 성명서: P210 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Repr. 1B - STOT SE 1
• 표적 기관: Eyes
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point (°F): 12.2 °F - (own results)
• Flash Point (°C): -11 °C - (own results)
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter