GoldBio's Precision Grade, Fatty Acid Free BSA from New Zealand is ideally suited for fatty acid sensitive cell culture systems, such as CHO, Vero and MDCK cells, as well as for the most sensitive diagnostic and research applications.

GoldBio BSA is a highly purified, lyophilized albumin, suitable for Westerns, enzyme systems, protein standards, hybridizations and as a protease-sensitive immunoassays. It is also perfectly suitable as a nutrient in cell culture media, with low interference and backgrounds and is ideal for most standard molecular biology experiments. BSA protein is a single polypeptide chain consisting of ~583 amino acid residues and no carbohydrates and is approximately 66 kDa in size. Fraction V refers to the fifth fraction of the original Cohn purification of plasma proteins using cold ethanol precipitation and is still commonly used as a name for bovine serum albumin regardless of purification method.

GoldBio's Caprylate Stabilized BSA from New Zealand is a highly purified, lyophilized albumin, suitable for Westerns, enzyme systems, protein standards, hybridizations and as a protease-sensitive immunoassays. It is also perfectly suitable as a nutrient in cell culture media, with low interference and backgrounds and is ideal for most standard molecular biology experiments.

Sulfhydryl Blocked Bovine Serum Albumin (sBSA) is a highly purified, lyophilized albumin designed for immunoassays and enzymatic applications that require minimal reactivity. sBSA maintains a high-monomer form with reduced cross-reactivity, ensuring exceptional stability and accuracy. sBSA is ideal for applications like acridinium ester chemiluminescence and immunoassays and is compatible with maleimide conjugation for added experimental flexibility.

Sulfhydryl BSA is particularly useful in thiol-sensitive assays, capable of blocking over 90% of the free thiol groups in BSA. Sulfhydryl BSA is free from EDTA and fatty acid-stabilized, making it suitable for a wide range of assay types. This BSA is sourced from Fraction V of the original Cohn purification, ensuring reliability and consistency. In addition to its blocking capabilities, sBSA is also used in protein standards, cell culture media, and protease-sensitive immunoassays, offering versatility across various biological and biochemical applications.

Brefeldin A is an antibiotic derived from Penicillium brefeldianum. It is an anti-cancer agent which disrupts protein transport and causes apoptosis of tumor cells. Brefeldin A disrupts the function of the Golgi apparatus and blocks Golgi-COPI activity. ER vesicles are prevented from fusion with the Golgi and are secretion is inhibited. Additionally, Brefeldin A is an ARF inhibitor, sphingomyelin cycle activator, and caspase-3 activator. It has been shown to induce apoptosis in leukemia cells and colon cancer cells.

Brilliant Green is a stain for differentiating E. coli from S. typhosa. It is also used in bacteriological media.

Bromocresol Green sodium salt is a tracking dye for RNA gels with a pH range of 3.8 (yellow) to 5.4 (blue).

Bromophenol blue is a dye for tracking proteins and nucleic acids in gel electrophoresis. Bromophenol blue migrates at about the same rate as ~500bp DNA in a 1% agarose gel and at the buffer front in protein polyacrylamide gels.

BTC (Betacellulin) is an EGF related growth factor containing 6 conserved cysteine residues, which form 3 intramolecular disulfide bonds essential for biological activity. It was originally isolated from the MCF-7 human breast carcinoma cell line and it is expressed in most tissues including kidney, uterus, liver and pancreas. BTC is also present in body fluids, including serum, milk, and colostrum. BTC is a ligand for the receptors erbB1 and erbB4. It is synthesized as a transmembrane protein and the ectodomain is cleaved by a protease to release the mature protein. BTC exhibits mitogenic activity for retinal pigment epithelial cells and vascular smooth muscle cells. It also exhibits growth-promoting activity that is similar to that of EGF.

BTC (Betacellulin) is an EGF related growth factor containing 6 conserved cysteine residues, which form 3 intramolecular disulfide bonds essential for biological activity. It was originally isolated from the MCF-7 human breast carcinoma cell line and it is expressed in most tissues including kidney, uterus, liver and pancreas. BTC is also present in body fluids, including serum, milk, and colostrum. BTC is a ligand for the receptors erbB1 and erbB4. It is synthesized as a transmembrane protein and the ectodomain is cleaved by a protease to release the mature protein. BTC exhibits mitogenic activity for retinal pigment epithelial cells and vascular smooth muscle cells. It also exhibits growth-promoting activity that is similar to that of EGF.

Bulbocapnine hydrochloride is the water-soluble form of the bulbocapnine alkaloid group, substances which act as acetylcholinesterase and tyrosine hydroxylase inhibitors. Activity from these chemicals causes dopamine biosynthesis to stall. Bulbocapnine hydrochloride is therefore a dopamine receptor antagonist but has also been used as a tyrosine 3-monooxygenase inhibitor (EC 1.14.16.2) and diamine oxidase inhibitor (EC 1.4.3.22). Because bulbocapnine is a plant metabolite, the substance has been responsible for lethal poisoning in livestock.

C-390 is an antibacterial agent which is used for selective isolation of Pseudomonas aeruginosa from other bacterial species.