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43815

DL-Dithiothreitol

BioUltra, Molecular Biology, ≥99.5% (RT)

Synonym(s):

(±)-Dithiothreitol, rac-Dithiothreitol, Dithiothreitol, 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
UNSPSC Code:
12161504
NACRES:
NA.25
PubChem Substance ID:
57650195
EC Number:
222-468-7
Beilstein/REAXYS Number:
1719757
MDL number:
MFCD00004877
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grade

Molecular Biology

Quality Level

200

product line

BioUltra

assay

≥99.5% (RT)

form

powder

reaction suitability

reagent type: reductant

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.3% 4,5-dihydroxy-1,2-dithiane

pH

4.0-6.5 (25 °C, 0.1 M in H2O)

mp

41-44 °C (lit.)

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: ≤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, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤500 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: 0.100

SMILES string

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

storage temp.

2-8°C

InChI

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

InChI key

VHJLVAABSRFDPM-QWWZWVQMSA-N

General description

Dithiothreitol (DTT) is a thiol-reducing reagent that quantitatively reduces disulfide (SH) groups in biological molecules. It specifically targets 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 less toxic than 2-mercaptoethanol. Typically, a seven-fold lower concentration of DTT (100 mM) is more efficient than that of 2-mercaptoethanol (5% v/v, 700 mM).

Application

DTT has been used:
  • as an enzyme stabilizer to maintain exebacase stability
  • for peptide extraction and protein denaturation
  • in sample preparation and reversal of formaldehyde crosslinks before mass spectrometry
  • as a buffer component to extract synaptogliosome
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).

Biochem/physiol Actions

Dithiothreitol (DTT) is broadly used in chemical peptide synthesis and biochemical preparations of thiol proteins. Additionally, studies on protein folding and enzyme activity in protein chemistry make use of DTT. This reagent explicitly mediates the thiol-disulfide exchange reaction to completely reduce the intra-or between sub-atomic disulfide bonds in biomolecules. This reaction brings about the arrangement of thiols and the cyclic disulfide of DTT.

Features and Benefits

  • BioUltra grade powder suitable for molecular biology
  • DNase, RNase, phosphatase, and protease-free insoluble matter, passes the filter test
  • Stringently tested and free from trace metals

Other Notes

For additional information on our range of Biochemicals, please complete this form.
Isolation of RNA using guanidinium salts. Inclusion of a reductant enhances denaturation by breaking intramolecular protein disulfide bonds.

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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

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG4150
BCCG3932
BCCF7337
BCCF6726
BCCF5430

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Data Sheet - 43815
Isolation of RNA using guanidinium salts.
R J MacDonald et al.
Methods in enzymology, 152, 219-227 (1987-01-01)
Pierre Larraufie et al.
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Bariatric surgery is widely used to treat obesity and improves type 2 diabetes beyond expectations from the degree of weight loss. Elevated post-prandial concentrations of glucagon-like peptide 1 (GLP-1), peptide YY (PYY), and insulin are widely reported, but the importance
Christopher D Wiley et al.
Cell reports, 28(13), 3329-3337 (2019-09-26)
Cellular senescence irreversibly arrests cell proliferation, accompanied by a multi-component senescence-associated secretory phenotype (SASP) that participates in several age-related diseases. Using stable isotope labeling with amino acids (SILACs) and cultured cells, we identify 343 SASP proteins that senescent human fibroblasts
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Global Trade Item Number

SKUGTIN
43815-1G04061835541362
43815-25G04061835515493
43815-5G04061835511952