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51457

Urea solution

BioUltra, ~8 M in H2O

Sinonimo/i:

Carbamide, Carbonyldiamide

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A voi/SKUDisponibilitàPrezzo
100 mL
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CHF 102.00
500 mL
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CHF 381.00

Informazioni su questo articolo

Formula condensata:
NH2CONH2
Numero CAS:
Peso molecolare:
60.06
UNSPSC Code:
12352111
NACRES:
NA.25
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
635724

CHF 102.00


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product line

BioUltra

concentration

~8 M in H2O

impurities

insoluble matter, passes filter test, ≤0.005% formaldehyde (HCHO), ≤0.05% biuret

refractive index

n20/D 1.40

pH

8.0-10.0 (25 °C)

anion traces

chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤10 mg/kg

cation traces

Al: ≤1 mg/kg, As: ≤0.1 mg/kg, Ba: ≤1 mg/kg, Bi: ≤1 mg/kg, Ca: ≤5 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤1 mg/kg, K: ≤20 mg/kg, Li: ≤1 mg/kg, Mg: ≤1 mg/kg, Mn: ≤1 mg/kg, Mo: ≤1 mg/kg, Na: ≤20 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Sr: ≤1 mg/kg, Zn: ≤1 mg/kg

λ

neat

UV absorption

λ: 260 nm Amax: 0.03, λ: 280 nm Amax: 0.02

application(s)

advanced drug delivery

SMILES string

NC(N)=O

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Gene Information

human ... CA1(759), CA2(760), EPHX2(2053)
mouse ... Ephx2(13850)
rat ... Ppm1a(24666)

Application

Urea solution has been used as a urea buffer for the denaturation of heavy chain and β2m inclusion body preparations.[1] It has also been used as a component of 1x wash buffer to purify HIS-tagged microphthalmia-associated transcription factor (MITF).[2]

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Questo articolo
U7129U4883U0631
Urea solution BioUltra, ~8 M in H2O

Sigma-Aldrich

51457

Urea solution

Urea solution 40 % (w/v) in H2O

Sigma-Aldrich

U7129

Urea solution

Urea 8 M (after reconstitution with 16 mL high purity water)

Supelco

U4883

Urea

Urea BioXtra, pH 7.5-9.5 (20 °C, 5 M in H2O)

Sigma-Aldrich

U0631

Urea

application(s)

advanced drug delivery

application(s)

-

application(s)

-

application(s)

diagnostic assay manufacturing

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

200

impurities

insoluble matter, passes filter test, ≤0.05% biuret, ≤0.005% formaldehyde (HCHO)

impurities

-

impurities

-

impurities

≤0.005% Phosphorus (P), ≤0.1% Insoluble matter

cation traces

Al: ≤1 mg/kg, Ba: ≤1 mg/kg, Ca: ≤5 mg/kg, Co: ≤1 mg/kg, Cu: ≤1 mg/kg, K: ≤20 mg/kg, Mg: ≤1 mg/kg, Mo: ≤1 mg/kg, Ni: ≤1 mg/kg, Sr: ≤1 mg/kg, As: ≤0.1 mg/kg, Cd: ≤1 mg/kg, Fe: ≤1 mg/kg, Mn: ≤1 mg/kg, Pb: ≤1 mg/kg, Bi: ≤1 mg/kg, Li: ≤1 mg/kg, Zn: ≤1 mg/kg, Cr: ≤1 mg/kg, Na: ≤20 mg/kg

cation traces

-

cation traces

-

cation traces

Al: ≤0.0005%, Ca: ≤0.001%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Mg: ≤0.0005%, NH4+: ≤0.05%, Na: ≤0.005%, Pb: ≤0.001%, Zn: ≤0.0005%

UV absorption

λ: 260 nm Amax: 0.03, λ: 280 nm Amax: 0.02

UV absorption

-

UV absorption

-

UV absorption

-

refractive index

n20/D 1.40

refractive index

-

refractive index

-

refractive index

-


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Classe di stoccaggio

10 - Combustible liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves



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Questions

1–3 of 3 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. At what temperature is this product to be stored?

    1 answer
    1. This product should be stored in room temperature.

      Helpful?

  3. 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

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