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15N, heavy-labeled ubiquitin provides a stable standard for ubiquitin structural study by NMR. The recombinant human ubiquitin is purified from E. coli expressing the human ubiquitin gene. The cells are grown in media where the sole nitrogen source is 15N labeled ammonium sulfate. The recombinant human ubiquitin is purified without heating by a proprietary procedure that preserves the native structure of the protein. The purified protein is homogenous when analyzed by overloaded SDS gels. The pools of purified protein solution are extensively dialyzed against water and lyophilized.
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Topiramate analytical standard supplied as a small, weighed quantity for analytical and research use. Intended for preparation of calibration standards, method development, and laboratory QC; not for human therapeutic use.
Analytical reference standard for topiramate.
Packaged as a weighed 10 mg unit for solution preparation.
High purity suitable for analytical work (≈99.8%).
Molecular formula C12H21NO8S; molecular weight 339.36 g/mol.
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Davercin (erythromycin cyclocarbonate) is a macrolide antibiotic derivative used as a research reagent. It inhibits bacterial protein synthesis and is reported to be active against Gram-positive and some Gram-negative microorganisms. The product is supplied in solid and solution formats with manufacturer guidance for solvent preparation and handling.
Derivative of erythromycin with antibacterial activity against Gram-positive and some Gram-negative organisms.
Molecular formula C38H65NO14 and molecular weight about 759.92 g/mol.
CAS number 55224-05-0 for unambiguous chemical identification.
Available in solid sizes from 1 mg to 500 mg and as 10 mM solutions in DMSO.
Soluble in DMSO for preparing stock solutions; limited solubility in water.
Intended for laboratory research use; follow the safety data sheet and handling instructions.
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More