455598
O-Methylisourea hemisulfate salt
99%
Synonym(s):
OMI®
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About This Item
Linear Formula:
H2NC(OCH3)=NH · 1/2H2SO4
CAS Number:
Molecular Weight:
123.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
257-851-8
Beilstein/REAXYS Number:
3723107
MDL number:
Assay:
99%
Form:
solid
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
Gene Information
human ... OPRD1(4985), OPRK1(4986), OPRM1(4988)
rat ... Oprd1(24613), Oprm1(25601)
Related Categories
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)
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Optimization of guanidination procedures for MALDI mass mapping.
Beardsley RL and Reilly JP.
Analytical Chemistry, 74(8), 1884-1890 (2002)
Kinetics of chemical modification of arginine and lysine residues in calf thymus histone H1.
K Mita et al.
Biopolymers, 20(6), 1103-1112 (1981-06-01)
Valerie J Carabetta et al.
Journal of the American Society for Mass Spectrometry, 21(6), 1050-1060 (2010-03-09)
The study of isolated protein complexes has greatly benefited from recent advances in mass spectrometry instrumentation and quantitative, isotope labeling techniques. The comprehensive characterization of protein complex components and quantification of their relative abundance relies heavily upon maximizing protein and
K M Fazili et al.
Biochemistry and molecular biology international, 31(5), 807-816 (1993-12-01)
Using acetic anhydride, potassium cyanate and O-methyl isourea six chemically modified derivatives of bovine serum albumin with chemical modification on lysine side chains have been prepared. All the modified preparations were found to be homogeneous with respect to size and
E Guerrero et al.
Molecular immunology, 27(5), 435-441 (1990-05-01)
Lysine residue 122 of the major protein of HBsAg/adw has been shown previously to be involved in the d subtype determinant. We demonstrate here that the corresponding residue of the HBsAg/ayw, arginine 122, does not play such a critical role
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