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Merck

666122-M

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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About This Item

Linear Formula:
NH2CONH2
CAS Number:
57-13-6
Molecular Weight:
60.06
NACRES:
NA.25
UNSPSC Code:
12352111
Beilstein/REAXYS Number:
635724
MDL number:
MFCD00008022
Assay:
≥98%
Grade:
Molecular Biology

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grade

Molecular Biology

Quality Level

100

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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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.

Legal Information

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

Disclaimer

Toxicity: Irritant (B)

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

666122-500GM-M: + 666122-500GM: + 666122-2.5KG: + 666122-2.5RKG: + 666122-2.5KG-M: + 666122-500RGM:

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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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Global Trade Item Number

SKUGTIN
666122-500GMCN07790788052294
666122-2.5KGCN07790788052287

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