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
51456
Urea
BioUltra, Molecular Biology, 99% (T)
Synonym(s):
Carbamide, Carbonyldiamide
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Product Name
Urea, BioUltra, Molecular Biology, 99% (T)
InChI key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
InChI
1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
SMILES string
NC(N)=O
grade
Molecular Biology
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
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
Quality Level
Gene Information
human ... CA1(759), CA2(760)
rat ... Ppm1a(24666)
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Related Categories
1 of 4
This Item | 32-0290 | 1.04166 | RDD034 |
|---|---|---|---|
| Quality Level 200 | Quality Level - | Quality Level 500 | Quality Level 100 |
| assay 99% (T) | assay ≥98.0% | assay - | assay ≥98% |
| grade for molecular biology | grade SAJ first grade | grade ACS reagent | grade - |
| solubility H2O: 8 M at 20 °C, clear, colorless | solubility - | solubility - | solubility - |
| form powder or crystals | form solid | form granular | form - |
| UV absorption λ: 260 nm Amax: ≤0.03, λ: 280 nm Amax: ≤0.02 | UV absorption - | UV absorption - | UV absorption - |
Application
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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An optimized LC-MS/MS based workflow for low artifact tryptic digestion and peptide mapping of monoclonal antibody, adalimumab (Humira) using filter assisted sample preparation (FASP).
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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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