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43794

Sigma-Aldrich

1,4-Dithioerythritol

BioUltra, ≥99.0% (RT)

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Synonym(s):
erythro-1,4-Dimercapto-2,3-butanediol, erythro-2,3-Dihydroxy-1,4-butanedithiol, Cleland’s reagent, DTE
Linear Formula:
HSCH2CH(OH)CH(OH)CH2SH
CAS Number:
Molecular Weight:
154.25
Beilstein:
1719756
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

product line

BioUltra

Quality Level

Assay

≥99.0% (RT)

form

powder

reaction suitability

reagent type: reductant

impurities

insoluble matter, passes filter test
≤0.5% 4,5-dihydroxy-1,2-dithiane

pH

4.0-6.0 (25 °C, 0.1 M in H2O)

mp

82-84 °C (lit.)
82-85 °C

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in H2O

UV absorption

λ: 260 nm Amax: 0.400
λ: 280 nm Amax: 0.050

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+

InChI key

VHJLVAABSRFDPM-ZXZARUISSA-N

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Application

Reagent for maintaining −SH groups in the reduced state; quantitatively reduces disulfides.

Other Notes

Cleavage of disulfide bonds in proteins; Prevents oxidation of sulfhydryl-containing proteins during SDS-polyacrylamide gel electrophoresis.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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A specific and sensitive assay for disulfides.
W L Zahler et al.
The Journal of biological chemistry, 243(4), 716-719 (1968-02-25)
A simple method for stabilizing protein-sulfhydryl groups during SDS-gel electrophoresis.
L C Lane
Analytical biochemistry, 86(2), 655-664 (1978-06-01)
Reductive cleavage of cystine disulfides with tributylphosphine.
U T Rüegg et al.
Methods in enzymology, 47, 111-116 (1977-01-01)
Yang-Rae Kim et al.
ACS applied materials & interfaces, 2(1), 292-295 (2010-04-02)
A strategy for the rational design of a novel colorimetric sensor based on dithioerythritol-modified gold nanoparticles for the selective recognition of Hg2+ in aqueous media is presented. This approach relies on the combination of gold nanoparticles with Hg2+ through sulfur-Hg2+-sulfur
Kenan Coyan et al.
Research in veterinary science, 89(3), 426-431 (2010-04-21)
The aim of this study was to investigate the effects of methionine and dithioerythritol, added to the Tris extender, on ram sperm motility and LPO (lipid peroxidation) and antioxidant capacities during liquid storage up to 72 h at 5°C. Ejaculates

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