二烯内酯,bufadienolides,在线英语词典,英文翻译,专业英语

1) bufadienolides

二烯内酯

Results: Most of the bufadienolides were the same in VB and ST,but those in VB were more concentrative;Four main indole-alkaloids were the same,the content of another dehydrobufotenine was higher in ST,but very low in VB;β-sitosterol was identified in VB,but Cholesterol and cholesteryl palmitate in ST.

结果:蟾酥及蟾皮中的二烯内酯成分大多数相同,但蟾酥中的种类少而含量更集中;吲哚生物碱类有4个主要成分相同,另一吲哚生物碱脱氢蟾蜍色胺,在蟾皮中的相对含量较高,而蟾酥中很低;且初步判断蟾酥中甾醇类主要为β-谷甾醇,而蟾皮中主要为胆甾醇和胆甾醇棕榈酸酯。

2) Bufadienolides

蟾皮二烯内酯

3) bufadienolides

蟾蜍二烯内酯

Determination of bufadienolides in Liushen Pill by HPLC;

六神丸中蟾蜍二烯内酯类成分的含量测定

Objective To establish a method used for quantitative determination of bufadienolides in human liver tissues by HPLC.

目的建立高效液相色谱法检测肝组织中蟾蜍二烯内酯的定量方法。

4) pentadienone

戊二烯酮

5) polybutadiene

聚丁二烯

Synthesis and characterization of poly(L-lactic acid)/polybutadiene based polyurethanes;

聚L-乳酸/聚丁二烯基聚氨酯的合成与表征

Mechanism of bulk free-radical grafting polymerization of styrene onto polybutadiene;

聚丁二烯橡胶接枝苯乙烯本体自由基聚合机理

Synthesis and characterization of stereotriblock polybutadiene and properties of its hydrogenated product;

立构三嵌段聚丁二烯的合成及其加氢产物的性能

6) dodecylene

十二烯

The process industrial synthsis of tert-dodecyl mercaptan from dodecylene and hydrogen sulfide with aluminium trichloride as catalyst was introduced,which consists of four units including the preparation of catalyst,purification of raw dodecylene,additive reaction and separation of reaction product.

介绍了以无水三氯化铝络合物为催化剂,十二烯和硫化氢直接加成法生产叔十二烷基硫醇的工业试验工艺。

参考词条

1-十二烯氯丁二烯二烯烃异戊二烯环辛二烯 1,5-己二烯 2,4-二烯-3β 1,3-丁二烯 1,4-戊二烯双及物构式无机纳米半导体敏化

补充资料：-戊内酯、3-甲基丁内酯、咖吗-戊内酯

CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃

中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯

英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton

性质描述: 无色至微黄色液体。凝固点-31℃，沸点205-206.5℃，83-84℃（1.73kPa），相对密度（25/25℃）1.0578，折光率（nD25）1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。

生产方法: 由不饱和羧酸通过闭环反应来合成，例如乙酰乙酸与硫酸共热，或乙酰丙酸在镍、铜等催化剂存在下加氢。

用途: γ-戊内酯有较强的反应能力，可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂，用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

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1) bufadienolides 二烯内酯 1. Results: Most of the bufadienolides were the same in VB and ST,but those in VB were more concentrative;Four main indole-alkaloids were the same,the content of another dehydrobufotenine was higher in ST,but very low in VB;β-sitosterol was identified in VB,but Cholesterol and cholesteryl palmitate in ST. 结果:蟾酥及蟾皮中的二烯内酯成分大多数相同,但蟾酥中的种类少而含量更集中;吲哚生物碱类有4个主要成分相同,另一吲哚生物碱脱氢蟾蜍色胺,在蟾皮中的相对含量较高,而蟾酥中很低;且初步判断蟾酥中甾醇类主要为β-谷甾醇,而蟾皮中主要为胆甾醇和胆甾醇棕榈酸酯。 2) Bufadienolides 蟾皮二烯内酯 3) bufadienolides 蟾蜍二烯内酯 1. Determination of bufadienolides in Liushen Pill by HPLC; 六神丸中蟾蜍二烯内酯类成分的含量测定 2. Objective To establish a method used for quantitative determination of bufadienolides in human liver tissues by HPLC. 目的建立高效液相色谱法检测肝组织中蟾蜍二烯内酯的定量方法。 4) pentadienone 戊二烯酮 5) polybutadiene 聚丁二烯 1. Synthesis and characterization of poly(L-lactic acid)/polybutadiene based polyurethanes; 聚L-乳酸/聚丁二烯基聚氨酯的合成与表征 2. Mechanism of bulk free-radical grafting polymerization of styrene onto polybutadiene; 聚丁二烯橡胶接枝苯乙烯本体自由基聚合机理 3. Synthesis and characterization of stereotriblock polybutadiene and properties of its hydrogenated product; 立构三嵌段聚丁二烯的合成及其加氢产物的性能 6) dodecylene 十二烯 1. The process industrial synthsis of tert-dodecyl mercaptan from dodecylene and hydrogen sulfide with aluminium trichloride as catalyst was introduced,which consists of four units including the preparation of catalyst,purification of raw dodecylene,additive reaction and separation of reaction product. 介绍了以无水三氯化铝络合物为催化剂,十二烯和硫化氢直接加成法生产叔十二烷基硫醇的工业试验工艺。参考词条 1-十二烯氯丁二烯二烯烃异戊二烯环辛二烯 1,5-己二烯 2,4-二烯-3β 1,3-丁二烯 1,4-戊二烯双及物构式无机纳米半导体敏化补充资料：-戊内酯、3-甲基丁内酯、咖吗-戊内酯 CAS: 108-29-2 分子式: C5H8O2 分子质量: 100.12 沸点: 207-208℃ 熔点: -31-208℃ 中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton 性质描述: 无色至微黄色液体。凝固点-31℃，沸点205-206.5℃，83-84℃（1.73kPa），相对密度（25/25℃）1.0578，折光率（nD25）1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。生产方法: 由不饱和羧酸通过闭环反应来合成，例如乙酰乙酸与硫酸共热，或乙酰丙酸在镍、铜等催化剂存在下加氢。用途: γ-戊内酯有较强的反应能力，可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂，用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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