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
43819
DL -Ditiotreitol
≥99.0% (RT)
Sinónimos:
treo-1,4-dimercapto-2,3-butanediol, DTT, Reactivo de Cleland
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Quality Segment
assay
≥99.0% (RT)
form
powder
reaction suitability
reagent type: reductant
impurities
≤0.3% 4,5-dihydroxy-1,2-dithiane
mp
40-43 °C, 41-44 °C (lit.)
solubility
H2O: 50 mg/mL, clear, colorless, H2O: freely soluble, acetone: freely soluble, chloroform: freely soluble, diethyl ether: freely soluble, ethanol: freely soluble, ethyl acetate: freely soluble
anion traces
sulfate (SO42-): ≤50 mg/kg
cation traces
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, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤250 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
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
Biochem/physiol Actions
1 of 1
Este artículo | |||
|---|---|---|---|
| description ≥99.0% (RT) | description ≥98% (HPLC), ≥99.0% (titration) | description BioXtra, ≥99.0% (titration) | description BioUltra, Molecular Biology, ≥99.5% (RT) |
| assay ≥99.0% (RT) | assay ≥98% (HPLC), ≥99.0% (titration) | assay ≥99.0% (titration) | assay ≥99.5% (RT) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mp 40-43 °C, 41-44 °C (lit.) | mp 41-44 °C (lit.) | mp 41-44 °C (lit.) | mp 41-44 °C (lit.) |
| anion traces sulfate (SO42-): ≤50 mg/kg | anion traces - | anion traces sulfate (SO42-): ≤0.005% | anion traces sulfate (SO42-): ≤50 mg/kg |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| impurities ≤0.3% 4,5-dihydroxy-1,2-dithiane | impurities - | impurities Insoluble matter, passes filter test, ≤0.3% 4,5-dihydroxy-1,2-dithiane | 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 |
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Danger
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B
Clase de almacenamiento
8A - Combustible corrosive hazardous materials
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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