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Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

For important updates on recent policy changes, please click here for more details.

Merck
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所有图片(3)

主要文件

T22209

Sigma-Aldrich

环丁砜

99%

别名:

四亚甲基砜, 四氢噻吩-1,1-二氧化物

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1 PKG
CN¥592.44

CN¥592.44


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1 PKG
CN¥592.44

About This Item

经验公式(希尔记法):
C4H8O2S
CAS号:
分子量:
120.17
Beilstein:
107765
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22

CN¥592.44


预计发货时间May 20, 2025详情

新价格,新优惠!

获取大包装报价

蒸汽密度

4.2 (vs air)

质量水平

蒸汽压

0.01 mmHg ( 20 °C)

方案

99%

折射率

n20/D 1.484 (lit.)

沸点

104 °C/0.2 mmHg (lit.)
285 °C (lit.)

mp

20-26 °C (lit.)

密度

1.261 g/mL at 25 °C (lit.)

SMILES字符串

O=S1(=O)CCCC1

InChI

1S/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2

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应用

环丁砜是一种极性非质子溶剂,可用于纤维素的完全热解,而无需任何聚合或碳化副反应。[1]环丁砜与均三甲苯结合,可用作从 L-天冬氨酸合成聚(琥珀酰亚胺)(PSI)的溶剂。[2][3]它还可以用作合成氯封端的聚醚砜低聚物的溶剂,这是一种用于尼龙 6-聚醚砜(PES)-尼龙 6 嵌段共聚物合成的聚合物活化剂。[4]

象形图

Health hazardExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Oral - Repr. 1B

储存分类代码

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

闪点(°F)

350.6 °F - closed cup

闪点(°C)

177 °C - closed cup

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

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