Putrescine is a biogenic polyamine and precursor of spermidine. It is formed via decarboxylation of ornithine or by decarboxylation of arginine followed by hydrolysis. Binds to the polyamine modulatory site of the NMDA receptor and potentiates NMDA-induced currents; precursor of spermidine.

Putrescine is a GABA precursor in many biological systems and synthon for amido-ureas.

G418 is an aminoglycoside related to Gentamicin and is toxic to bacteria, yeast, higher plants, mammalian cells, protozoans and helminths. It blocks polypeptide synthesis in both prokaryotic and eukaryotic cells and is useful for selection of genetically engineered eukarytoic cells in culture.

8-Anilino-1-naphthalene Sulfonic Acid is a hydrophobic polarity sensitive fluorescent dye useful as a site probe to detect conformational changes in cell and micelle membranes and molecules such as proteins. ANSA is also used as a fluorescent probe for the estimation of the critical micelle…

Lysozyme (muramidase) hydrolyzes preferentially the β-1,4 glucosidic linkages between N-acetylmuramic acid and N-acetylglucosamine which occur in the mucopeptide cell wall structure of certain microorganisms, such as Micrococcus lysodeikticus. Extracts group specific antigens …

Doxycycline is an antibiotic  against gram-positive and gram-negative bacteria. More active biologically than the corresponding 6b-epimer hydrochloride. Derivative of oxytetracycline. A broad spectrum inhibitor used to inhibit matrix metallo-proteinases (MMP) such as type 1 collagenase in…

Erythromycin is a macrolide antibiotic that bind to the 50S ribosomal subunit and inhibit protein synthesis. This is an antimicrobial substance produced by the growth of certain strains of Streptomyces erythreus. It is a mixture consisting largely of erythromycin A with lesser amounts of…

p-nitrophenol is used as an indicator in 0.1% alcohol solutions. 4-Nitrophenol is used as a precursor to prepare phenetidine, acetophenetidne and pH indicator. Its carboxylate ester derivatives are involved as an active component for the construction of amide moieties in peptide synthesis. It is…

Cefoperazone sodium salt is a broad spectrum third generation cephalosporin antibiotic that has similar antimicrobial activity to ceftazidime. It is active against Pseudomonoas aeruginosa and it has enhanced activity against Enterobacteriaceae and Bacteroides sp. in the presence of the…

Adenosine 5′-diphosphate is a P2Y receptor agonist. Adenosine 5′-diphosphate has been used to study the release, neuronal effects and removal of extracellular β-nicotinamide adenine dinucleotide (β-NAD+) in the rat brain. Adenosine 5′-diphosphate has also been used to…

5-Bromo-2’-deoxyuridine is a thymidine analog and useful for the study of DNA synthesis where it is incorporated into DNA in place of thymidine. Measure DNA synthesis Label dividing cells Study cell signaling and processes that induce cell proliferation Used as a mutagen in…

Trypsin consists of a single chain polypeptide of 223 amino acid residues. Member of the serine protease family Dissolves blood clots in its microbial form Treats inflammation in its pancreatic form Trypsin cleaves peptides on the C-terminal side of lysine and arginine residues.…

3,3',5,5'-Tetramethylbenzidine is suitable as peroxidase substrate for use in ELISA procedures. The substrate produces a soluble end product that is pale blue in color and can be read spectrophotometrically at 370 or 620-650 nm. The TMB reaction may be stopped with 2 M H2SO4 (resulting in a…

Spermidine is biogenic polyamine formed from putrescine, a precursor of spermine. Spermidine has a role in cell growth processes and the formation and interconversion of spermidine in mammalian cells has been reported. Spermidine binds to and activates NMDA(N-Methyl-D-Aspartate receptor) and has…

β-estradiol is a potent mammalian estrogenic hormone produced by the ovary. Triggers the production of gonadotropins leading to ovulation. β-Estradiol is used to study cell differentiation and transformations (tumorigenicity). The pharmacology and HPLC determination of β-Estradiol…

Bovine Transferrin is chromatographically purified from New Zealand-sourced bovine plasma in an ISO quality system assuring complete traceability and consistent high quality. Transferrin (HOLO) is an iron-rich product supplied as a heat-treated, lyophilized powder.

Spectinomycin is an aminocyclitol antibiotic, closely related to the aminoglycosides, it inhibits protein synthesis (elongation) by interfering with peptidyl tRNA translocation. Mutation in rpsE (the gene for ribosomal protein S5) prevents binding of spectinomycin. Specinomycin is used in cell…

Phenazine ethosulfate is an intermediate which is used to detect nitric oxide reducatase activity in concert with ascorbic acid.

Kanamycin sulfate is an antimicrobial agent effective against Gram-negative and Gram-positive bacteria and mycoplasma. It binds to the 70S ribosomal subunit, inhibits translocation, and elicits miscoding. Cross-resistance occurs between kanamycin and neomycin, framycetin, and paromomycin, and…

Prepared using Cohn method IV. The material is non-reactive for HbsAg, Anti-HCV 3.0, Anti-HIV-1/2 and STS (RPR). This material is also negative for HIV-1 and HCV by PCR ALBUMIN, HUMAN is recommended for use in absorption, distribution, metabolism, and excretion (ADME) pharmacological research;…

Synonyms: 1,2,3-Tricaprinoylglycerol, 1,2,3-Tridecanoylglycerol, Glycerol tricaprate, Glycerol tris(decanoate), Tridecanoin, Glyceryl tridecanoate, 1,2,3-Tridecanoyl-rac-glycerol, Glyceryl tridecanoate, Tri-N-Caprin Molecular Formula: C₃₃H₆₂O₆

Pepsin, an acid protease, contains a proteolytic enzyme. Pepsin contains the "cathepsin" component which has milk curdling activity. It has a broad range of substrate activity and demonstrates an esterase acitivity. It generally attacks peptide bonds. Pepsin is a peptidase used to…

Fetuin is a protein containing 12 Cys residues, all involved in disulfide bridges. The composition of bovine fetuin (weight %) is polypeptide 74%, hexose 8.3%, hexosamines 5.5%, and sialic acid 8.7%. Fetuin bovine is a protein with the ability to bind to the insulin receptor and inhibit insulin…

β-NAD is one of the biologically active forms of nicotinic acid. Coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols Inhibitory neurotransmitter in visceral smooth muscle Acts as a hydrogen acceptor, forming NADH …

Vitamin B12 (cobalamin) refers to a group of chemically-related cobalt containing molecules involved in cell processes such as DNA synthesis, fatty acid synthesis, energy production and regulation. The physiologically active forms of vitamin B12 include methylcobalamin and adenosylcobalamin,…

IPTG (isopropyl-β-thiogalactoside) is an analogue of allolactose that binds specifically to the repressor protein of the lac operon and induces expression of β-galactosidase in Escherichia coli. IPTG is a commonly used reagent in cloning procedures that require induction of…

n-Octyl-β-D-Glucopyranoside is a non-ionic detergent for membrane protein. n-Octyl-glucoside is a non-ionic alkyl-glucoside detergent commonly used in the solubilization of membrane proteins and phospholipids. n-Octyl-glucoside has been used at a molar dependant ratios for the…

N-Acetyl-D-galactosamine(GalNAc), an aminosugar, is a component of many O-linked and N-linked glycan structures. Intial O-linked sugar to many serine and threonine residues in protein glycosylations.

A water-soluble bacteriolytic antibiotic in the carboxypenicillin group. It is effective against gram-negative bacteria. Inhibits bacterial cell-wall synthesis (peptidoglycan cross-linking) by inactivating transpeptidases on the inner surface of the bacterial cell membrane.

Histamine Diphosphate Monohydrate is potent vasodilater. Endogenous H1 and H2 histamine receptor agonist; H1 activation mobilizes Ca2+; H2₂ activation stimulates adenylate cyclase activity in neurons; activates nitric oxide synthetase; potent vasodilator.

Rifamycin SV is a broad-spectrum semisynthetic antimicrobial agent of the rifamycin group. Rifamycin SV is used to study potential genes, such as rif15 and rif16, which may be involved in the conversion of rifamycin SV into rifamycin B. It is a potential treatment for traveler’s diarrhea…