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Key Documents

D5545

Sigma-Aldrich

DL-二硫苏糖醇

BioXtra, ≥99.0% (titration)

同義詞:

1,4-二巯基苏糖醇, DTT, 克莱兰氏试剂

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About This Item

線性公式:
HSCH2CH(OH)CH(OH)CH2SH
CAS號碼:
分子量::
154.25
Beilstein:
1719757
EC號碼:
MDL號碼:
分類程式碼代碼:
12352201
PubChem物質ID:
NACRES:
NA.21

產品線

BioXtra

品質等級

化驗

≥99.0% (titration)

形狀

powder

反應適用性

reagent type: reductant

雜質

Insoluble matter, passes filter test
≤0.3% 4,5-dihydroxy-1,2-dithiane

pH值

4.0-6.0 (20-25 °C, 0.1 m in H2O)

mp

41-44 °C (lit.)

溶解度

H2O: 0.1 M, clear, colorless

負離子痕跡

sulfate (SO42-): ≤0.005%

正離子痕跡

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.1%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

吸收

≤0.100 at 280 in H2O at 0.1 M
≤0.400 at 260 in H2O at 0.1 M

儲存溫度

2-8°C

SMILES 字串

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 密鑰

VHJLVAABSRFDPM-QWWZWVQMSA-N

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應用

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。

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

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

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

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


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分析證明 (COA)

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