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MilliporeSigma

666122-M

Millipore

Urea

Molecular Biology Grade, End product of the urea cycle. A topical keratolytic agent.

Synonym(s):

Urea, Carbamide, Carbonyl Diamide, Carbamide, Carbonyldiamide

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500 G
$88.50
666122-2.5KG
$297.00

About This Item

Linear Formula:
NH2CONH2
CAS Number:
Molecular Weight:
60.06
Beilstein/REAXYS Number:
635724
MDL number:
UNSPSC Code:
12352111
NACRES:
NA.25
Grade:
Molecular Biology
Assay:
≥98%

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grade

Molecular Biology

Quality Level

description

Merck USA index - 14, 9867

assay

≥98%

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

mp

132-135 °C (lit.)

solubility

water: soluble

density

1.335 g/mL at 25 °C (lit.)

absorption

≤0.01 at 260 nm
≤0.01 at 280 nm

foreign activity

DNases, proteases, RNases, none detected

storage temp.

10-30°C

SMILES string

NC(N)=O

InChI

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

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

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1 of 4

This Item
33247U51281.08486
Urea Molecular Biology Grade, End product of the urea cycle. A topical keratolytic agent.

666122-M

Urea

Urea puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

33247

Urea

Urea ACS reagent, 99.0-100.5%

U5128

Urea

Urea crystalline, EMPROVE® ESSENTIAL, Ph. Eur., BP, ChP, JP, USP

1.08486

Urea

grade

Molecular Biology

grade

ACS reagent, puriss. p.a.

grade

ACS reagent

grade

-

assay

≥98%

assay

≥99%, 99-101% (calc. on dry substance)

assay

≤0.001% (Heavy Metals by ICP-OES, metals basis), 99.0-100.5%

assay

98.0-102.0% (HPLC)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

500

solubility

water: soluble

solubility

H2O: soluble 480 g/L at 20 °C

solubility

H2O: soluble 480 g/L at 20 °C

solubility

1000 g/L

form

solid

form

solid

form

solid

form

crystalline, solid

mp

132-135 °C (lit.)

mp

132-135 °C (lit.)

mp

132-135 °C (lit.)

mp

132-135 °C (lit.)

General description

End product of the urea cycle (absorbance: ≤0.01 at 260 nm and 280 nm). A topical keratolytic agent.
End product of the urea cycle. A topical keratolytic agent.

Application

Used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form.

Warning

Toxicity: Irritant (B)

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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