Skip to Content
Merck

455598

O-Methylisourea hemisulfate salt

99%

Synonym(s):

OMI®

Slide 1 of 1
Sign In to View Organizational & Contract Pricing.

Select a Size

100 G

₩325,003

₩325,003

Available to ship TODAYDetails

Request a Bulk Order

About This Item

Linear Formula:
H2NC(OCH3)=NH · 1/2H2SO4
CAS Number:
52328-05-9
Molecular Weight:
123.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24868581
EC Number:
257-851-8
Beilstein/REAXYS Number:
3723107
MDL number:
MFCD00040594

Key Documents

View All Documentation

Skip To

Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

O-Methylisourea hemisulfate salt, 99%

InChI key

QSCPQKVWSNUJLJ-UHFFFAOYSA-N

InChI

1S/2C2H6N2O.H2O4S/c2*1-5-2(3)4;1-5(2,3)4/h2*1H3,(H3,3,4);(H2,1,2,3,4)

SMILES string

COC(N)=N.COC(N)=N.OS(O)(=O)=O

assay

99%

form

solid

mp

163-167 °C (lit.)

solubility

water: soluble 100 mg/mL, clear, colorless

functional group

amine

Quality Level

200

Gene Information

human ... OPRD1(4985), OPRK1(4986), OPRM1(4988)
rat ... Oprd1(24613), Oprm1(25601)

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
M53701O1376HPA050306
O-Methylisourea hemisulfate salt 99%

Sigma-Aldrich

455598

O-Methylisourea hemisulfate salt

o-Methylisourea bisulfate 99%

Sigma-Aldrich

M53701

o-Methylisourea bisulfate

Orotidine 5′-monophosphate trisodium salt ≥99% (HPLC), powder

Sigma-Aldrich

O1376

Orotidine 5′-monophosphate trisodium salt

Anti-MIER1 antibody produced in rabbit Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody

Sigma-Aldrich

HPA050306

Anti-MIER1 antibody produced in rabbit

assay

99%

assay

99%

assay

≥99% (HPLC)

assay

-

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

100

solubility

water: soluble 100 mg/mL, clear, colorless

solubility

-

solubility

-

solubility

-

mp

163-167 °C (lit.)

mp

118-120 °C (lit.)

mp

-

mp

-

form

solid

form

-

form

powder

form

buffered aqueous glycerol solution

functional group

amine

functional group

-

functional group

-

functional group

-

Legal Information

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

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCP1698
BCCP1697
BCCK2956
BCCG4256
BCCF0974

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Optimization of guanidination procedures for MALDI mass mapping.
Beardsley RL and Reilly JP.
Analytical Chemistry, 74(8), 1884-1890 (2002)
M H Jouvin et al.
Journal of immunology (Baltimore, Md. : 1950), 133(6), 3250-3254 (1984-12-01)
Lysine epsilon-amino groups of human factor H were selectively converted to guanidino groups by treatment with 0.1 M O-methylisourea at pH 10.4. Guanidination resulted in a dose-dependent decrease in the capacity of the regulatory protein to accelerate decay dissociation of
Jessica Z Bereszczak et al.
Journal of the American Society for Mass Spectrometry, 18(2), 201-207 (2006-10-28)
Development of a quantification method based on isotopic variants of O-methyl isourea (OMIU) in conjunction with reversed-phase (RP) liquid chromatography (LC) electrospray mass spectrometry is described for determining the relative quantification of tau-related peptides Ac-VQIVXK-NH2. Extracted ion chromatograms of the
S I Shalabi et al.
The Journal of dairy research, 49(4), 607-617 (1982-11-01)
Several dicarbonyl compounds (glyoxal, substituted glyoxals, diacetyl and 1, 2-cyclohexanedione) had a marked stabilizing effect on the heat stability of milk, especially in the presence of urea. These reagents are believed to modify arginine more or less specifically suggesting an
V M Mahnir et al.
Toxicon : official journal of the International Society on Toxinology, 29(7), 819-826 (1991-01-01)
The effect of modification of amino groups on RTX-III induced lethality in mice has been studied. The toxicity was not affected by guanidination of one or two lysine residues with O-methylisourea, but guanidination of three or four lysine residues decreased
View All Related Papers

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service