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V900830

Sigma-Aldrich

DL-Dithiothreitol

Vetec™, reagent grade, 98%

Synonym(s):

threo-1,4-Dimercapto-2,3-butanediol, Cleland’s reagent, DTT

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About This Item

Linear Formula:
HSCH2CH(OH)CH(OH)CH2SH
CAS Number:
3483-12-3
Molecular Weight:
154.25
Beilstein/REAXYS Number:
1719757
EC Number:
222-468-7
MDL number:
MFCD00004877
UNSPSC Code:
12352209
PubChem Substance ID:
329830191

grade

reagent grade

product line

Vetec™

assay

98%

mp

41-44 °C (lit.)

storage temp.

2-8°C

SMILES string

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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Application

An excellent reagent for maintaining SH groups in reduced state; quantitatively reduces disulfides. DTT is effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE. DTT can also be used for reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl)cystamine to break apart the matrix of a polyacrylamide gel. DTT is less pungent and is less toxic than 2-mercaptoethanol. Typically, a seven fold lower concentration of DTT (100 mM) is needed than is used for 2-mercaptoethanol (5% v/v, 700 mM).

Legal Information

Vetec is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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