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D5545

DL-Dithiothreitol

BioXtra, ≥99.0% (titration)

Synonym(e):

threo-1,4-Dimercapto-2,3-butandiol, Clelands Reagens, DTT

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Größe/SKUVerfügbarkeitPreis
1 g
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€ 106,00
5 g
Warenkorb auf Verfügbarkeit prüfen
€ 362,00
25 g
Warenkorb auf Verfügbarkeit prüfen
€ 1.340,00

Über diesen Artikel

Lineare Formel:
HSCH2CH(OH)CH(OH)CH2SH
CAS-Nummer:
Molekulargewicht:
154.25
UNSPSC Code:
12352201
NACRES:
NA.21
PubChem Substance ID:
EC Number:
222-468-7
Beilstein/REAXYS Number:
1719757
MDL number:

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product line

BioXtra

Quality Segment

assay

≥99.0% (titration)

form

powder

reaction suitability

reagent type: reductant

impurities

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

pH

4.0-6.0 (20-25 °C, 0.1 m in H2O)

mp

41-44 °C (lit.)

solubility

H2O: 0.1 M, clear, colorless

anion traces

sulfate (SO42-): ≤0.005%

cation traces

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%

absorption

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

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

Application

Ein hervorragendes Reagens, um SH-Gruppen in reduziertem Zustand zu halten; reduziert Disulfide quantitativ. DTT-Zugabe in den Probenpuffer ist ein effektives Mittel um Disulfidbindungen in Proteinen vor der Durchführung einer SDS-PAGE zu reduzieren. DTT kann auch dazu benutzt werden, um die Disulfid-Brücken des Crosslinkers N,N′-bis(acryloyl)cystamin zu spalten und dadurch die Matrix eines Polyacrylamidgels aufzulösen. DTT riecht weniger stechend und ist weniger giftig als 2-Mercaptoethanol. In der Regel genügt eine sieben Mal kleinere Konzentration an DTT (100 mM) als die, für 2-Mercaptoethanol notwendige (5% v/v, 700 mM).

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Dieser Artikel
D063243815646563
description

BioXtra, ≥99.0% (titration)

description

≥98% (HPLC), ≥99.0% (titration)

description

BioUltra, Molecular Biology, ≥99.5% (RT)

description

1 M in H2O

assay

≥99.0% (titration)

assay

≥98% (HPLC), ≥99.0% (titration)

assay

≥99.5% (RT)

assay

-

product line

BioXtra

product line

-

product line

BioUltra

product line

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

-

anion traces

sulfate (SO42-): ≤0.005%

anion traces

-

anion traces

sulfate (SO42-): ≤50 mg/kg

anion traces

-

form

powder

form

powder

form

powder

form

liquid


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pictograms

CorrosionExclamation mark

signalword

Danger

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B

Lagerklasse

8A - Combustible corrosive hazardous materials



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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