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(R)-环氧苯乙烷

(R)-环氧苯乙烷名称

[ CAS 号 ]:
20780-53-4

[ 中文名 ]:
(R)-环氧苯乙烷

[ 英文名 ]:
(S)-Styrene oxide

[中文别名 ]:

[英文别名 ]:

(R)-Styrene oxide
(S)-Phenylethylene oxide
(R)-(+)-Styrene oxide
(R)-(epoxyethyl)benzene
(S)-Styrene oxide
(R)-2-Phenyl-oxirane
(R)-Phenyloxirane
Benzene, (epoxyethyl)-, (S)-
Benzene, (epoxyethyl)-, (R)-
(S)-(-)-Styrene oxide

(R)-环氧苯乙烷物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
193.9±9.0 °C at 760 mmHg

[ 熔点 ]:
-37ºC

[ 分子式 ]:
C₈H₈O

[ 分子量 ]:
120.148

[ 闪点 ]:
79.4±0.0 °C

[ 精确质量 ]:
120.057518

[ PSA ]:
12.53000

[ LogP ]:
1.61

[ 外观性状 ]:
灰白

[ 蒸汽压 ]:
0.6±0.4 mmHg at 25°C

[ 折射率 ]:
1.564

[ 储存条件 ]:
2~8℃

(R)-环氧苯乙烷MSDS

(R)-环氧苯乙烷毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CZ9625010

CHEMICAL NAME :: Benzene, (epoxyethyl)-, (R)-

CAS REGISTRY NUMBER :: 20780-53-4

LAST UPDATED :: 199506

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C8-H8-O

MOLECULAR WEIGHT :: 120.16

WISWESSER LINE NOTATION :: T3OTJ BR

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Mutation test systems - not otherwise specified

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Rodent - hamster Lung

DOSE/DURATION :: 125 umol/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 278,289,1992

(R)-环氧苯乙烷安全信息

[ 符号 ]:

GHS07, GHS08

[ 信号词 ]:
Danger

[ 危害声明 ]:
H312-H319-H350

[ 警示性声明 ]:
P201-P280-P305 + P351 + P338-P308 + P313

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
T:Toxic;

[ 风险声明 (欧洲) ]:
R21;R36;R45

[ 安全声明 (欧洲) ]:
S45-S53

[ 危险品运输编码 ]:
UN 2810

[ WGK德国 ]:
3

[ RTECS号 ]:
CZ9625010

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

[ 海关编码 ]:
2910900090

(R)-环氧苯乙烷合成路线

(R)-环氧苯乙烷上下游产品

(R)-环氧苯乙烷上游产品

(R)-环氧苯乙烷下游产品

(R)-环氧苯乙烷制备

1. 烟草：BU，56。

2.制法：

于装有搅拌器、温度计的反应瓶中，加入氯仿450mL，过氧苯甲酸42g（0.3mol），搅拌溶解。冰盐浴冷却至0℃以下，加入苯乙烯（2）30g（0.19mol）。搅拌反应1h，并保持0℃放置24h。此时反应液中只有很少量的过氧苯甲酸（可以取一定体积的反应液与酸性碘化钾溶液反应，而后用标准的硫代硫酸钠滴定来证明）。反应液用过量的10%的氢氧化钠溶液洗涤以除去生成的苯甲酸，再进行水洗以除去碱，无水硫酸镁干燥，分馏，除去氯仿后，减压分馏，收集101℃/5.3kPa的馏分，得苯乙烯（1）25g，收率72%。

^3.制法：

于装有搅拌器、温度计、回流冷凝器的反应瓶中，加入0.25g四丁基碘化铵、苯甲醛（2）5.3g（0.05mol，预先用碳酸钠溶液洗涤，以除去可能存在的苯甲酸），二氯甲烷50mL。加入50mL（50%）的氢氧化钠水溶液，而后加入粉状的碘化三甲基锍鎓盐10.2g(0.05mol)。油浴加热保持在55℃反应60h。反应结束后，将反应物倒入碎冰中。分出有基层，水层用二氯甲烷提取。合并有机层，依次用水（20mL×4）、饱和亚硫酸氢钠溶液（10mL×2）、水（20mL×2）洗涤，无水磷酸钙干燥。蒸出二氯甲烷，蒸馏，收集191～192℃的馏分，得苯基环氧乙烷^①（1）4.7g，收率78%。[2]

(R)-环氧苯乙烷海关

[ 海关编码 ]: 2910900090

[ 中文概述 ]:
2910900090. 三节环环氧化物，环氧醇（酚，醚），包括其卤化，磺化，硝化或亚硝化的衍生物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:5.5%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2910900090. epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

(R)-环氧苯乙烷文献

Cloning and characterization of an epoxide hydrolase from Cupriavidus metallidurans-CH34.

Protein Expr. Purif. 79(1) , 49-59, (2011)

A putative epoxide hydrolase-encoding gene was identified from the genome sequence of Cupriavidus metallidurans CH34. The gene was cloned and overexpressed in Escherichia coli with His(6)-tag at its N...

Simultaneous determination of aromatic acid metabolites of styrene and styrene-oxide in rat urine by gas chromatography-flame ionization detection.

J. Anal. Toxicol. 36(5) , 312-8, (2012)

A convenient and reliable gas chromatographic method was developed for the simultaneous determination of six aromatic acid metabolites of styrene and styrene-oxide in rat urine; i.e., benzoic (BA), ph...

Solvent and TMEDA effects on the configurational stability of chiral lithiated aryloxiranes.

Chemistry 17(29) , 8216-25, (2011)

The employment of hexane/N,N,N',N'-tetramethylethylenediamine (TMEDA) dramatically hinders the racemization of those lithiated styrene oxides (trifluoromethyl-, chloro-, and phenylthio-substituted) th...

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