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43819

Sigma-Aldrich

DL-二硫苏糖醇

≥99.0% (RT)

别名:

1,4-二巯基苏糖醇, DTT, 克莱兰氏试剂

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About This Item

线性分子式:
HSCH2CH(OH)CH(OH)CH2SH
CAS号:
3483-12-3
分子量:
154.25
Beilstein:
1719757
EC 号:
222-468-7
MDL编号:
MFCD00004877
UNSPSC代码:
12352201
PubChem化学物质编号:
329756409
NACRES:
NA.21

质量水平

200

方案

≥99.0% (RT)

表单

powder

反应适用性

reagent type: reductant

杂质

≤0.3% 4,5-dihydroxy-1,2-dithiane

mp

40-43 °C
41-44 °C (lit.)

溶解性

H2O: 50 mg/mL, clear, colorless
H2O: freely soluble
acetone: freely soluble
chloroform: freely soluble
diethyl ether: freely soluble
ethanol: freely soluble
ethyl acetate: freely soluble

痕量阴离子

sulfate (SO42-): ≤50 mg/kg

痕量阳离子

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤250 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

储存温度

2-8°C

SMILES字符串

O[C@H](CS)[C@H](O)CS

InChI

1S/C4H10O2S2/c5-3(1-7)4(6)2-8/h3-8H,1-2H2/t3-,4-/m1/s1

InChI key

VHJLVAABSRFDPM-QWWZWVQMSA-N

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相关类别

应用

DL-二硫苏糖醇是组成用于血小板细胞溶胶制备的缓冲液的关键组分。它对于使用胍盐分离RNA以及组织 和细胞均质化也很重要。
用于将 −SH 基保持在还原态的绝佳试剂；定量还原二硫化物。在 SDS-PAGE 前，DTT 在样品缓冲液中可有效还原蛋白二硫键。DTT 还可用于还原交联剂 N,N′-双(丙烯酰)胱胺的二硫键桥以分解聚丙烯酰胺凝胶基质。DTT 的刺激性和毒性都低于 2-巯基乙醇。通常，使用 DTT (100mM) 所需的浓度是使用 2-巯基乙醇 (5% v/v, 700mM) 的浓度的七分之一。

生化/生理作用

DL-二硫苏糖醇通过将二硫键还原为SH基团而使蛋白质变性。它还可以防止蛋白质半胱氨酸残基之间形成分子内和分子间二硫键。

其他说明

2024年CiteAb奖——成功的帕金森研究供应商(2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research)

象形图

CorrosionExclamation mark
GHS05,GHS07

警示用语：

Danger

危险声明

H302,H315,H318

危险分类

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2

储存分类代码

11 - Combustible Solids

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

从最新的版本中选择一种：

分析证书(COA)

Lot/Batch Number
BCCG5712
BCCM5274
BCCL7020
BCCK1099
BCCB7858

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