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
Fortfahren mit
51456
Harnstoff
BioUltra, Molecular Biology, 99% (T)
Synonym(e):
Carbamid, Carbonyldiamid
Größe auswählen
| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
500 g | Warenkorb auf Verfügbarkeit prüfen | € 96,10 |
2.5 kg | Warenkorb auf Verfügbarkeit prüfen | € 322,00 |
Über diesen Artikel
grade
Molecular Biology
Quality Segment
product line
BioUltra
assay
99% (T)
form
powder or crystals
impurities
DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.1% biuret, <0.005% formaldehyde (HCHO)
ign. residue
≤0.01% (as SO4)
loss
≤0.1% loss on drying, 20 °C (HV)
pH
8.0-10.0 (20 °C, 8 M in H2O)
mp
132-135 °C (lit.)
solubility
H2O: 8 M at 20 °C, clear, colorless
density
1.335 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤10 mg/kg
SMILES string
NC(N)=O
cation traces
Al: ≤5 mg/kg, As: ≤0.1 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: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
λ
8 M in H2O
UV absorption
λ: 260 nm Amax: ≤0.03, λ: 280 nm Amax: ≤0.02
InChI
1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
InChI key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
Gene Information
human ... CA1(759), CA2(760)
rat ... Ppm1a(24666)
Application
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| description BioUltra, Molecular Biology, 99% (T) | description meets USP testing specifications | description Pharmaceutical Secondary Standard; Certified Reference Material | description free-flowing, Redi-Dri™, Bioreagent, ≥98% |
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 100 |
| grade Molecular Biology | grade - | grade pharmaceutical secondary standard, certified reference material | grade - |
| assay 99% (T) | assay 98.0-102.0% | assay - | assay ≥98% |
| solubility H2O: 8 M at 20 °C, clear, colorless | solubility H2O: soluble 480 g/L at 20 °C | solubility - | solubility - |
| form powder or crystals | form solid | form - | form - |
| impurities <0.005% formaldehyde (HCHO), RNases, none detected, phosphatases, none detected, DNases, none detected, insoluble matter, passes filter test, ≤0.1% biuret, proteases, none detected | impurities - | impurities - | impurities - |
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Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
PSA (Persönliche Schutzausrüstung)
Eyeshields, Gloves, type N95 (US)
Lagerklasse
13 - Non Combustible Solids
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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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