D9779

DL-Dithiothreitol

≥98% (HPLC), ≥99% (titration)

• Szinonimák: (±)-Dithiothreitol, rac-Dithiothreitol, Dithiothreitol, threo-1,4-Dimercapto-2,3-butanediol, Cleland’s reagent, DTT
• Lineáris képlet: HSCH₂CH(OH)CH(OH)CH₂SH
• CAS Number: 3483-12-3
• Molekulatömeg: 154.25
• Beilstein: 1719757
• EC-szám: 222-468-7
• MDL-szám: MFCD00004877
• UNSPSC kód: 12161504
• PubChem Substance ID: 24894330
• NACRES: NA.31

Tulajdonságok

• grade: Molecular Biology
• Minőségi szint: 200
• Teszt: ≥98% (HPLC); ≥99% (titration)
• Forma: powder
• reakcióalkalmasság: reagent type: reductant
• mp: 41-44 °C (lit.)
• oldhatóság: H₂O: 50 mg/mL
• kation nyomok: heavy metals (as Pb): ≤5 ppm
• alkalmasság: suitable for molecular biology
• idegen aktivitás: DNase, RNase, protease, none detected
• tárolási hőmérséklet: 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
• Nemzetközi kémiai azonosító kulcs: VHJLVAABSRFDPM-QWWZWVQMSA-N

Leírás

Általános leírás

Dithiothreitol (DTT) is an excellent reagent for maintaining SH groups in a reduced state in proteins. It initiates the thiol-disulfide exchange reaction to completely reduce the intra-or inter-molecular disulfide bonds in biomolecules. DTT specifically targets the disulfide bridge of the cross-linker N,N′-bis(acryloyl)cystamine to break apart the matrix of a polyacrylamide gel and sodium dodecyl polyacrylamide gel electrophoresis (SDS-PAGE). Hence, it is highly effective in use with buffers that quantitatively reduce disulfides. DTT is less pungent and less toxic in nature than 2-mercaptoethanol. It is also 7x more concentrated than beta-mercaptoethanol.

Alkalmazás

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).

DL-Dithiothreitol is used in protein samples to reduce the disulfide bonds before loading the sample onto the gel for Western Blot or SDS-PAGE It has been used in the procedure of in situ hybridization of mRNA.

It has been used:

• as a component for protein extraction in western blot analysis
• to prepare sample lysis buffer for quantitative mass spectroscopy
• as a kinase buffer component for enzyme-linked immunosorbent assay (ELISA)

Biokémiai/fiziológiai hatások

Dithiothreitol (DTT) is frequently utilized in biochemical preparations of thiol proteins and chemical peptide synthesis. DTT is also used in protein chemistry research on the folding of proteins and enzyme activity.

Tulajdonságok és előnyök

• Suitable for molecular biology
• RNase, DNase, Exonuclease, and Protease-free
• High purity (HPLC ≥98%)
• No heavy metal ≤5ppm

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Biztonsági adatok

• Piktogramok: GHS05,GHS07
• Figyelmeztetés: Danger
• Figyelmeztető mondatok: H302,H315,H318
• Óvintézkedésre vonatkozó mondatok: P264 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Veszélyességi osztályok: Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2
• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 3
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable
• Egyéni védőeszköz: dust mask type N95 (US), Eyeshields, Faceshields, Gloves