Merck
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D1435

Sigma-Aldrich

二甲基亚砜

meets EP testing specifications, meets USP testing specifications

Synonym(s):
DMSO, 甲基亚砜
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.71

Agency

meets EP testing specifications
meets USP testing specifications

质量水平

蒸汽密度

2.7 (vs air)

蒸汽压

0.42 mmHg ( 20 °C)

检测方案

≥99.5%

形式

liquid

自燃温度

573 °F

expl. lim.

42 %, 63 °F

technique(s)

cryopreservation: suitable

杂质

≤0.1% water (Karl Fischer, USP)
≤0.2% water (Karl Fischer, EP)

颜色

colorless

折射率

n20/D 1.478-1.479
n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

溶解性

H2O: miscible (completely)

密度

1.100-1.104 g/mL at 25 °C (relative density (EP))
1.10 g/mL (lit.)

紫外吸收

λ: 285 nm Amax: ≤0.20
λ: 295 nm Amax: ≤0.20

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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二甲基亚砜

vapor density

2.7 (vs air)

vapor density

2.7 (vs air)

vapor density

-

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

vapor pressure

0.42 mmHg ( 20 °C)

vapor pressure

-

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.5%

assay

-

assay

-

assay

-

form

liquid

form

liquid

form

-

form

-

autoignition temp.

573 °F

autoignition temp.

573 °F

autoignition temp.

-

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

expl. lim.

42 %, 63 °F

expl. lim.

-

expl. lim.

42 %, 63 °F

应用

二甲亚砜已用于:
  • 溶解四甲基罗丹明染料,从而用作荧光原位杂交(FISH)实验的荧光团
  • 用作猪睾丸(ST)细胞间接免疫荧光测定(IFA)的对照物
  • 颊细胞悬浮和分离
  • 聚合酶链式反应(PCR)的极性非质子溶剂,同时可用作冷冻保护剂玻璃化剂,用于保存细胞、组织和器官。

生化/生理作用

二甲基亚砜(DMSO)是一种低分子量、低亲水性且可自由透膜的防冻剂。它是一种聚合酶链式反应(PCR)的极性非质子溶剂,同时可用作冷冻保护剂玻璃化剂,用于保存细胞、组织和器官。

注意

在室温下容易过冷并缓慢重融。 固化产品可以通过加热至室温来重新液化,而不会损害产品。

其他说明

有关二甲基亚砜混溶性的信息,请访问以下链接:
二甲基亚砜混溶性/不混溶性表格

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(F)

188.6 °F - closed cup

闪点(C)

87 °C - closed cup

个人防护装备

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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