Tjaden Biosciences Tjaden Biosciences is committed to providing the highest quality radiochemical products, radiosynthesis, radiolabeling, and other services at affordable prices by offering superior customer service in combination with...
United States Biological USBiological is a long-established biotech manufacturer located near Boston, offering a wide range of biologicals, biochemicals and the largest selection of antibodies you will find anywhere. USBio offers over 100,000...
DNA Cellulose, ds
Microcrystalline cellulose containing bound native calf thymus DNA, prepared according to a method by which native calf thymus DNA is covalently bound to...
DNA Cellulose, ss
Microcrystalline cellulose containing bound native calf thymus DNA, prepared according to a method by which native calf thymus DNA is covalently bound to...
DNA, ds (Plasmid)
The dsDNA antigen is a 2690bp plasmid purified by alkaline lysis and chromatography. The purification process includes operations to minimize reactivity to...
Biomatik Biomatik is the world's leading supplier of life science products and custom services. We offer industry-leading innovation, quality and customer-satisfaction. Our outstanding custom services include peptide synthesis,...
Biosearch Technologies, Inc. Biosearch Technologies, Inc. (Biosearch) is an ISO 9001:2008, GMP compliant company who leads in the synthesis of real-time qPCR probes and primers, and in the manufacture of novel DNA synthesis reagents. As a validated...
Custom Oligonucleotides
Whether you require labeled or unlabeled oligos, we can meet your exact needs as we offer more custom modifications than any other oligo supplier at a cost...
Qorpak Qorpak® has been known as an industry leader of packaging to the pharmaceutical, chemical, petroleum, environmental, and educational markets for more than 30 years. The popularity of the Qorpak® product line has enabled...
Ajulemic acid, a non-psychoactive synthetic cannabinoid derivative of 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid (THC-COOH), has a chemical structure amenable to high pH conditions for HPLC-tandem mass spectrometric analysis.
Cyclooxygenases (COXs), also known as prostaglandin H synthases, are fatty acid oxygenases that contain about 600 amino acid residues and act on arachidonic acid to generate prostaglandins (PG). All vertebrates contain two COX genes: one encoding the constitutive COX-1 and another inducible COX-2. COX-1 and COX-2 share approximately 60-65% amino acid identity. These COX isoforms are bifunctional ...
Picolinic acid is an endogenous biologically active molecule which serves as the body's natural chelator of certain transition metals, such as zinc. Picolinic acid is a terminal metabolite generated from the catabolism of tryptophan.The circulating levels of picolinic acid are proposed to change in certain pathological conditions and during therapy.
A sensitive and specific HPLC-MS/MS method ...
Alternate Cleaning Procedures: Ashing Glassware; Ashing glassware reduces all organic compounds to a mineral & carbon ash. To ash, place suitable ware in an oven set at 842°F (450°C) for at least 3 hours. Allow ware to cool, rinse & clean as per stated in the Bellco's General Cleaning Procedures or follow your cleaning protocols. Chromic Acid Wash: Follow all normal safety precautions when using ...
Cleaning validation is essential in order to prevent contamination and cross contamination of pharmaceutical products. Introduced here is the determination of the quantitation limit for the Shimadzu UV-1800 spectrophotometer by absorption photometry, with samples consisting of detergent A used for cleaning in the pharmaceutical field, and the typically used pharmaceutical materials ...
Transforming growth factor- (TGF-), a member of the TGF superfamily of proteins that includes activins, inhibins, and bone morphogenetic proteins (BMPs), regulates a wide array of cellular processes including cell differentiation, cellular senescence, immune response, wound healing, and apoptosis. TGF- signaling promotes growth and development during early embryogenesis. However, in mature ...
A material is considered passivated when it shows a high resistance to corrosion in an environment that one would normally expect corrosion to occur.1 Stainless steel is considered a material that naturally passivates because it contains chromium as an alloying element that forms a very thin chromium oxide layer on the surface of the stainless steel.2 This thin chromium oxide layer is responsible ...
Mevalonic acid (MVA) is an important biomarker of cholesterol and bile acid synthesis and resides in two forms in the body, me- valonic acid and mevalonic acid lactone (mevalonolactone).
2-Acetoxy-benzoic acid (also known by the common name aspirin) has several applications in fields ranging from pharmaceutical synthesis1 to biology2 and pharmacology.3 Several 2-acetoxybenzoic acid derivatives, which incorpo- rate stable isotopes (i.e. 2H and 13C) have been synthesized,4 however, relatively few radiosyntheses of 2-acetoxybenzoic acid derivatives have been reported.5 Furthermore, ...
A sensitive and rugged HPLC-UV method was developed and validated for the quantitation of 2,3-dihydroxy- benzoic acid (DHBA) in the linear range of 10-1000 μg/mL in rat, dog, and human plasma. DHBA is a metabolite of 2,3-diacetoxybenzoic acid (DABA).
2,3-dihydroxybenzoic acid (2,3-DHBA) is a product of salicylate metabolism produced through the action of the hydroxyl radical. This compound can ...
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