呋喃,苯并呋喃,醋酸乙烯酯被列为可能对人类致癌。
Furan, benzofuran, and vinyl acetate were classified as possibly carcinogenic to humans.
一种含吲哚类取代基的苯并呋喃酮类化合物的制造方法。
The invention discloses a preparation method of a benzofuran ketones compound containing indoles substituent groups.
二苯并呋喃(DF)是研究二英类化合物生物降解的模式化合物之一。
Dibenzofuran(DF) is one of the model compounds for the study of biodegradation of dioxin-like pollutants.
近期的研究表明电脑屏幕可以产生一种叫做溴二苯并呋喃的致癌物质。
Recent research shows that the computer screen can produce a carcinogenic substance called bromine dibenzofuran, which is harmful to human's health.
其名称“二恶英”通常用来指结构和化学性质相关的多氯二苯二恶英(PCDDs)和多氯二苯并呋喃(PCDFs)。
The name "dioxins" is often used for the family of structurally and chemically related polychlorinated dibenzo para dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs).
本文首次合成了几种含苯并呋喃苯并噻吩环的新的芳香族四羰基化合物,并对它们进行了元素分析和红外光谱测定。
Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.
用苯酚和钠得到苯酚钠,苯酚钠和2-氯乙醇得到2-苯氧基乙醇,与氯化锌反应得2,3-二氢苯并呋喃,产率50%。
A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%.
用苯酚和钠得到苯酚钠,苯酚钠和2-氯乙醇得到2-苯氧基乙醇,与氯化锌反应得2,3-二氢苯并呋喃,产率50%。
A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%.
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