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/449/386/product-dating-information-mk.pdf
43815
DL-Ditiotreitol
BioUltra, for molecular biology, ≥99.5% (RT)
Sinónimos:
(±)-ditiotreitol, rac-ditiotreitol, ditiotreitol, treo-1,4-dimercapto-2,3-butanediol, DTT, Reactivo de Cleland
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About This Item
Productos recomendados
grade
for molecular biology
Quality Level
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
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General description
Application
- como estabilizador enzimático para mantener la estabilidad de la exebacasa[1]
- para la extracción de péptidos y la desnaturalización de proteínas[2]
- en la preparación de muestras y la reversión de enlaces cruzados inducidos por el formaldehído antes de la espectrometría de masas[3]
- como componente amortiguador para extraer sinaptogliosomas[4]
Biochem/physiol Actions
Features and Benefits
- Polvo de calidad BioUltra adecuado para biología molecular
- Materia insoluble sin ADNasas, ARNasas, fosfatasas y proteasas, pasa la prueba de filtro
- Estrictamente probado y sin trazas metálicas
Other Notes
Comparable product
signalword
Danger
hcodes
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
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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Is it normal for an IgG1 solution to become milky after DTT reduction?
1 answer-
It is uncommon for a reducing agent to cause protein precipitation. However, in some cases, the reduction of a protein with a reducing agent like DTT can result in a change in the isoelectric point of the protein or protein fragments. This change in pH may create conditions where precipitation of the protein is more likely to occur.
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