1,2-디메톡시벤젠
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1,2-디메톡시벤젠 속성
- 녹는점
- 15 °C(lit.)
- 끓는 점
- 206-207 °C(lit.)
- 밀도
- 1.084 g/mL at 25 °C(lit.)
- 증기압
- 0.63 hPa (25 °C)
- 굴절률
- n
20/D 1.533(lit.)
- 인화점
- 189 °F
- 저장 조건
- Store below +30°C.
- 용해도
- 6.69g/l 불용성
- 물리적 상태
- 가루
- 색상
- 흰색에서 크림색으로
- 냄새
- 디프로필렌 글리콜 중 1.00%. 달콤하고 크리미한 바닐라 페놀릭 머스티
- ?? ??
- 바닐라
- 수용성
- 알코올, 디에틸 에테르, 아세톤 및 메탄올에 용해됩니다. 물에 약간 용해됩니다.
- 어는점
- 21.0 to 23.0 ℃
- Merck
- 14,9956
- JECFA Number
- 1248
- BRN
- 1364621
- Dielectric constant
- 4.0899999999999999
- InChIKey
- ABDKAPXRBAPSQN-UHFFFAOYSA-N
- LogP
- 1.75-2.22 at 25℃
- CAS 데이터베이스
- 91-16-7(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 22-20/21/22 | ||
안전지침서 | 36-23-24/25 | ||
WGK 독일 | 1 | ||
RTECS 번호 | CZ6475000 | ||
TSCA | Yes | ||
HS 번호 | 29093090 | ||
독성 | LD50 in rats, mice (mg/kg): 1360, 2020 orally (Jenner) | ||
기존화학 물질 | KE-11034 |
1,2-디메톡시벤젠 C화학적 특성, 용도, 생산
화학적 성질
Colorless crystals or liquid. Soluble in alcohol and ether; slightly soluble in water.출처
Reported present in asparagus (raw and cooked), bonito (dried), broccoli (cooked), cauliflower (cooked), cognac, endive, grape, Gruyere de Comte cheese, guava, leek (raw and heated), olive, peas, rhubarb, rice bran and vanilla extract.용도
1,2-Dimethoxybenzene was used to investigate the electroantennogram response of vine weevil, Otiorhynchus sulcatus to plant volatiles.제조 방법
Prepared by methylation of pyrocatechol.1,2-Dimethoxybenzene can also be prepared from Catechol. The specific synthesis steps are as follows:
Aqueous sodium hydroxide(40%,175 ml)is added dropwise during 3 hr at 18-22 to a well stirred mixture of catechol (50 g,0.45 mole),sodium hydrosulphite (20 g,0.115 mole),dimethyl sulphate (110 ml,146.63 g, 1.16 mole)and alcohol (150 ml).Ice (1 kg)is added to the reaction mixture and left overnight at room temperature.It is extracted with ether (2x 200 ml).The ether extract is washed with water,dried (anhydrous sodium sulphtate)and distilled.Veratrole is obtained as oil.Yield 52.75 g (84.1%).B.p.207°(1it.3b.p.207).
정의
ChEBI: A dimethoxybenzene with the methoxy groups at ortho-positions.일반 설명
1,2-Dimethoxybenzene reacts with Li{N(SO2CF3)2} to yield molecular crystal [Li{N(SO2CF3)2}{C6H4(OCH3)2}2] having solid-state lithium ion conductivity. It is a potential pollinator attractant of the nocturnal moth Hadena bicruris.Toxicology
Data from 1,2-dimethoxybenzene and read-across analog 1,4-dimethoxybenzene (CAS # 150-78-7) show that 1,2-dimethoxybenzene is not expected to be genotoxic. Data show that there are no safety concerns for 1,2-dimethoxybenzene for skin sensitization under the current declared levels of use. The repeated dose, reproductive, and local respiratory toxicity endpoints were evaluated using the TTC for a Cramer Class I material, and the exposure to 1,2-dimethoxybenzene is below the TTC (0.03 mg/kg/day, 0.03 mg/kg/day, and 1.4 mg/day, respectively). The phototoxicity/photoallergenicity endpoints were evaluated based on UV spectra; 1,2-dimethoxybenzene is not expected to be phototoxic/photoallergenic. For the environmental endpoints, 1,2-dimethoxybenzene is not a PBT as per the IFRA Environmental Standards, and its risk quotients (i.e., PEC/PNEC) for the aquatic environment, based on its current volume of use in Europe and North America, are < 1Purification Methods
Steam distil veratrole, then fractionally distil it from BaO, CaH2 or Na. Crystallise it from *benzene or low-boiling pet ether at 0o. Fractionally crystallise it from its melt. Store it over anhydrous Na2SO4. [Beilstein 6 IV 5564.]1,2-디메톡시벤젠 준비 용품 및 원자재
원자재
과이아콜
카테콜
석유 에테르
염화메틸
1-(3,4-Dimethoxyphenyl)-2-(2-methoxyphenoxy)ethanone Methyl ether
1,2-다이메톡시-4-에틸벤젠
1-(3,4-디메톡시페닐)-1-프로파논
준비 용품
5-클로로-2-(3,4-디메톡시페닐)-2-이소프로필발레로니트릴
4-클로로-3',4'-디메톡시벤조페논
3,4-디메톡시페닐아세토니트릴
6,7-디메톡시옥시-3-메틸-1,2,3,4-테트라히드로이소퀴놀린히드로클로라이드
2,3-Dimethoxyphenylboronic acid
3-메틸-2-(3,4-디메톡시페닐)부티로니트릴
2,3,6,7,10,11-트리페닐렌헥솔
4,5-디메톡시-1-시아노벤조시클로부탄
3,4-디메톡시페놀
에틸3,4-디메톡시페닐아세테이트
4-Aminoveratrole
(R)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline
METHOXYBENZOQUINONE
6,7-DIMETHOXYISOQUINOLINE
3-이소프로필카테콜
1,2-디메톡시벤젠 공급 업체
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