3,4-디메톡시벤즈알데히드
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3,4-디메톡시벤즈알데히드 속성
- 녹는점
- 40-43 °C (lit.)
- 끓는 점
- 281 °C (lit.)
- 밀도
- 1.1708 (rough estimate)
- 증기압
- 0.09Pa at 24℃
- 굴절률
- 1.5260 (estimate)
- 인화점
- >230 °F
- 저장 조건
- 2-8°C
- 용해도
- 알코올: 자유롭게 용해됨
- 물리적 상태
- 덩어리 또는 융합된 고체
- 색상
- 흰색에서 노란색으로
- Specific Gravity
- 1.15 (liquid)
- 냄새
- 디프로필렌 글리콜 중 10.00%. 달콤한 우디 바닐라
- ?? ??
- 크림 같은
- 수용성
- 22&C에서 <0.1g/100mL
- 감도
- Air Sensitive
- Merck
- 14,9951
- JECFA Number
- 877
- BRN
- 473899
- 안정성
- 안정적인. 강염기, 강산화제와 호환되지 않습니다.
- LogP
- 0.8 at 25℃
- CAS 데이터베이스
- 120-14-9(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn,Xi | ||
---|---|---|---|
위험 카페고리 넘버 | 22-38-36/37/38-36/38 | ||
안전지침서 | 26-22-24/25-36 | ||
WGK 독일 | 3 | ||
RTECS 번호 | YX5088000 | ||
F 고인화성물질 | 9-23 | ||
TSCA | Yes | ||
HS 번호 | 29124900 | ||
독성 | LD50 orally in Rabbit: 2000 mg/kg LD50 dermal Rabbit > 5000 mg/kg | ||
기존화학 물질 | KE-11032 |
3,4-디메톡시벤즈알데히드 C화학적 특성, 용도, 생산
화학적 성질
Veratraldehyde is a crystalline solid (mp 44.5–45°C) with a woody, vanillalike odor.Veratraldehyde can be prepared by methylation of vanillin. It is used in oriental and warm, woody fragrances, as well as in flavor compositions for vanilla notes. It is an intermediate in, for example, the synthesis of pharmaceuticals.
출처
Reported among the constituents of the essential oils of Cymbopogon javanensis and Eryngium poterium. Also reported found in raspberry, ginger, peppermint oil, Bourbon vanilla and mastic gum oil.용도
Veratraldehyde was used in the preparation of 4-chloromethyl-2-(dimethoxyphenyl)-1,3-dioxolane. It was used in the synthesis of (+)-lithospermic acid, having anti-HIV activity. It forms 1:1 inclusion complexes with cyclodextrins. It reacts with 3-acetyl-2,5-dimethythiophene to yield chalcone dye, (2E)-3-(3,4-Dimethoxyphenyl)-1-(2,5-dimethylthiophen-3-yl)prop-2-en-1-one.제조 방법
Prepared from vanillin by methylation of vanillin with dimethylsulfate under mildly alkaline conditions.일반 설명
Needles or chunky light peach powder. Has an odor of vanilla beans.공기와 물의 반응
Insoluble in water.반응 프로필
Veratraldehyde is incompatible with strong oxidizing agents and strong bases. . Veratraldehyde is an aldehyde. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction).화재위험
Veratraldehyde is probably combustible.Purification Methods
Crystallise the ether from diethyl ether, pet ether, CCl4 or toluene. [Beilstein 8 IV 1765.]3,4-디메톡시벤즈알데히드 준비 용품 및 원자재
원자재
준비 용품
3,4-디메톡시벤즈알데히드 공급 업체
글로벌( 881)공급 업체
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