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Showing 21-40 of 85 items.

Forceps and Scalpel Rack

Catalog ID Size Pricing
R3002.0001 1 each $ 89.00

Description

Stainless Steel rest for holding sterile forceps and scalpel handles in a convenient position.

Product Specifications

Catalog ID R3002
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R3002.0001 2-3 Weeks 1 each $ 89.00

GelGreen™ Nucleic Acid Stain Gel Stain, 10,000X in DMSO

Catalog ID Size Pricing
G-740-500 500 µL $ 119.00

Description

GelGreen™ is a sensitive, stable and environmentally safe green fluorescent nucleic acid dye designed to stain either dsDNA, ssDNA or RNA in agarose gels. GelGreen™ is far more sensitive than SYBR Safe. Unlike SYBR® dyes, which are known to be unstable, GelGreen™ is very stable, both hydrolytically and thermally. GelGreen™ is compatible with either a 254 nm UV transilluminator or a gel reader equipped with visible light excitation (such as blue LED light box, 488 nm laser-based gel scanner, or Dark Reader®).

GelGreen™ can be used for either post-electrophoresis gel staining or precast gel staining.

Product Specifications

Catalog ID G-740
Storage/Handling Store at room temperature. Protect from light.
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Packs & Pricing
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G-740-500 2-3 Weeks 500 µL $ 119.00

GelGreen™ Nucleic Acid Stain Gel Stain, 10,000X in Water

Catalog ID Size Pricing
G-745-100 100 μL $ 29.00
G-745-500 500 µL $ 131.00
G-745-1 1 mL $ 255.00
G-745-2 2 mL $ 495.00
G-745-10 10 mL $ 1,967.00

Description

GelGreen™ is a sensitive, stable and environmentally safe green fluorescent nucleic acid dye designed to stain either dsDNA, ssDNA or RNA in agarose gels. GelGreen™ is far more sensitive than SYBR Safe. Unlike SYBR® dyes, which are known to be unstable, GelGreen™ is very stable, both hydrolytically and thermally. GelGreen™ is compatible with either a 254 nm UV transilluminator or a gel reader equipped with visible light excitation (such as blue LED light box, 488 nm laser-based gel scanner, or Dark Reader®).

GelGreen™ can be used for either post-electrophoresis gel staining or precast gel staining.

Product Specifications

Catalog ID G-745
Storage/Handling Store at room temperature. Protect from light.
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Packs & Pricing
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G-745-100 2-3 Weeks 100 μL $ 29.00
G-745-500 2-3 Weeks 500 µL $ 131.00
G-745-1 In stock 1 mL $ 255.00
G-745-2 In stock 2 mL $ 495.00
G-745-10 2-3 Weeks 10 mL $ 1,967.00

GelRed™ Nucleic Acid Gel Stain, 10,000X in DMSO

Catalog ID Size Pricing
G-720-500 500 µL $ 131.00
G-720-10 10 mL $ 2,104.00

Description

GelRed™ is an ultra-sensitive, extremely stable and environmentally safe fluorescent nucleic acid dye designed to replace the highly toxic ethidium bromide (EtBr) for staining dsDNA, ssDNA or RNA in agarose gels or polyacrylamide gels. GelRed™ is far more sensitive than EtBr without requiring a destaining step. GelRed™ and EtBr have virtually the same spectra, so you can directly replace EtBr with GelRed™ without changing your existing imaging system.

GelRed™ can be used to stain dsDNA, ssDNA or RNA in agarose gels via either precast or post gel staining or can be used to stain polyacrylamide gels via post gel staining. GelRed™ is also compatible with downstream DNA manipulations such as restriction digest, sequencing, and cloning.

A series of safety tests have confirmed that GelRed™ is noncytotoxic, nonmutagenic and nonhazardous at concentrations well above the working concentrations used in gel staining. As a result, GelRed™ can be safely disposed of down the drain or in regular trash, providing convenience and reducing cost in waste disposal.

GelRed™ 10,000X solution in DMSO is for established users of GelRed™ in DMSO who do not wish to change their laboratory protocols. For new users, we recommend GelRed™ 10,000X in water (catalog # G-725), which eliminates the hazards of handling DMSO for even better safety. The performance and stability of GelRed™ 10,000X is comparable in both the water and DMSO formulations.

Product Specifications

Catalog ID G-720
Storage/Handling Store at room temperature. Protect from light.
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Packs & Pricing
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G-720-500 In stock 500 µL $ 131.00
G-720-10 2-3 Weeks 10 mL $ 2,104.00

GelRed™ Nucleic Acid Gel Stain, 10,000X in Water

Catalog ID Size Pricing
G-725-100 100 μL $ 33.00
G-725-500 500 µL $ 136.00
G-725-1 1 mL $ 265.00
G-725-2 2 mL $ 515.00
G-725-10 10 mL $ 2,210.00

Description

GelRed™ is an ultra-sensitive, extremely stable and environmentally safe fluorescent nucleic acid dye designed to replace the highly toxic ethidium bromide (EtBr) for staining dsDNA, ssDNA or RNA in agarose gels or polyacrylamide gels. GelRed™ is far more sensitive than EtBr without requiring a destaining step. GelRed™ and EtBr have virtually the same spectra, so you can directly replace EtBr with GelRed™ without changing your existing imaging system.

Product Specifications

Catalog ID G-725
Storage/Handling Store at room temperature. Protect from light.
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Packs & Pricing
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G-725-100 In stock 100 μL $ 33.00
G-725-500 In stock 500 µL $ 136.00
G-725-1 In stock 1 mL $ 265.00
G-725-2 In stock 2 mL $ 515.00
G-725-10 2-3 Weeks 10 mL $ 2,210.00

Gentamicin Sulfate 50 mg/mL Solution

Catalog ID Size Pricing
G-400-SL10 10 mL $ 59.00
G-400-SL25 25 mL $ 85.00
G-400-SL50 50 mL $ 115.00
G-400-SL100 100 mL $ 145.00

Description

Gentamicin is a broad-spectrum aminoglycoside antibiotic effective against gram-negative and gram-positive species. In addition, gentamicin exhibits antimicrobial properties against species resistant to tetracycline, colistin, kanamycin, and chloramphenicol.

GoldBio’s antibiotic solutions are provided ready to use.

Product Specifications

Catalog ID G-400-SL
CAS # 1405-41-0
MW 575.67 g/mol
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Packs & Pricing
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G-400-SL10 In stock 10 mL $ 59.00
G-400-SL25 In stock 25 mL $ 85.00
G-400-SL50 In stock 50 mL $ 115.00
G-400-SL100 In stock 100 mL $ 145.00

Hepatitis B (HBV) Surface Antigen preS1

Catalog ID Size Pricing
6820-01-10 10 μg $ 115.00
6820-01-50 50 μg $ 165.00
6820-01-500 500 μg $ 1,039.00

Description

Hepatitis B virus (HBV) is an infectious, and potentially fatal, human disease that causes serious liver disease. There are three start codons on the Gene S HBV surface protein antigen (HBsAg) that divide the gene into three sections: pre-S1, pre-S2, and S. These start sites create three carboxyl, coterminal polypeptides that are called large (LHB, the order from surface to the inside: pre-S1, pre-S2, and S), middle (MHB, containing the pre-S2 and S portion) and small (SHB, covering only the S portion). The pre-S1 amino acid region of LHBs consists of 119 amino acids and has been shown to interact with its human binding partner, γ2-adaptin, to subvert the membrane-trafficking apparatus to mediate virion export. HBsAg-PreS1 can be used for Immunochromatography, monoclonal and polyclonal antibody preparation or for ELISA analysis.

Product Specifications

Catalog ID 6820-01
MW ~12.6 kDa
Storage/Handling Store desiccated at -20°C.
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Packs & Pricing
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6820-01-10 3-4 Weeks 10 μg $ 115.00
6820-01-50 3-4 Weeks 50 μg $ 165.00
6820-01-500 3-4 Weeks 500 μg $ 1,039.00

Kanamycin Monosulfate 50 mg/mL Solution

Catalog ID Size Pricing
K-120-SL25 25 mL $ 65.00
K-120-SL50 50 mL $ 89.00
K-120-SL100 100 mL $ 125.00

Description

Kanamycin is an aminoglycoside antibiotic isolated from Streptomyces kanamyceticus. It is effective against gram-positive and gram-negative bacteria as well as Mycoplasma species. Kanamycin is commonly used to select for bacteria that have been transformed with a kanamycin-resistant gene and plant tissues that have the NPT II (APH3) gene incorporated in them. Kanamycin is very soluble in aqueous solution and is typically used in concentrations of 50-100 µg/ml.

Product Specifications

Catalog ID K-120-SL
CAS # 25389-94-0
MW 582.58 g/mol
Grade MOLECULAR BIOLOGY GRADE
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Packs & Pricing
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K-120-SL25 In stock 25 mL $ 65.00
K-120-SL50 In stock 50 mL $ 89.00
K-120-SL100 In stock 100 mL $ 125.00

KITLG (SCF), Canine

Catalog ID Size Pricing
1420-01-10 10 μg $ 165.00

Description

KIT Ligand (KITLG), also called Stem Cell Factor (SCF) which binds to the c-Kit receptor is produced by fibroblasts and endothelial cells. The soluble and transmembrane forms of the protein are formed by alternative splicing of the same RNA transcript and the presence of both soluble and transmembrane SCF is required for normal hematopoietic function. SCF plays an important role in hematopoiesis, spermatogenesis and melanogenesis and it promotes mast cell adhesion, migration, proliferation, and survival. Soluble canine SCF shares 76-93% amino acid sequence identity with many other species, including human, mouse, rat and equine. Cells known to express SCF include endothelial cells, fibroblasts and keratinocytes.

Product Specifications

Catalog ID 1420-01
MW ~18.4 kDa
Storage/Handling Store desiccated at -20°C.
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Packs & Pricing
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1420-01-10 In stock 10 μg $ 165.00

KITLG (SCF), Human

Catalog ID Size Pricing
1120-01-10 10 μg $ 165.00
1120-01-500 500 μg $ 1,539.00

Description

C-kit ligand, the recently identified ligand for the kit tyrosine kinase receptor, is mapped to the mouse S1 locus. This pleiotropic cytokine, alternately known as stem cell factor (SCF), mast cell growth factor (MGF) and steel-factor (SLF), plays essential roles in gametogenesis, melanogenesis and early stages of hematopoiesis. In vitro and in vivo KITLG can stimulate the proliferation of mature, as well as the proliferation and maturation of immature mast cells. KITLG acts in a synergistic manner on purified primitive human and mouse hematopoietic precursors, with various growth factors (such as IL1, IL3, IL6, IL7 and Epo,) to induce myeloid, erythroid and lymphoid lineage colony formation. The finding that KITLG is also expressed in the nervous system suggests a possible role for KITLG in the development of the nervous system.

Product Specifications

Catalog ID 1120-01
MW ~18.4 kDa
Storage/Handling Store desiccated at -20°C.
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Packs & Pricing
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1120-01-10 In stock 10 μg $ 165.00
1120-01-500 3-4 Weeks 500 μg $ 1,539.00

KITLG (SCF), Murine

Catalog ID Size Pricing
1320-01-10 10 μg $ 165.00
1320-01-100 100 μg $ 745.00
1320-01-500 500 μg $ 1,539.00

Description

C-kit ligand, the recently identified ligand for the kit tyrosine kinase receptor, is mapped to the mouse S1 locus. This pleiotropic cytokine, alternately known as stem cell factor (SCF), mast cell growth factor (MGF) and steel-factor (SLF), plays essential roles in gametogenesis, melanogenesis and early stages of hematopoiesis. In vitro and in vivo, KITLG can stimulate the proliferation of mature, as well as the proliferation and maturation of immature, mast cells. KITLG acts in a synergistic manner on purified primitive human and mouse hematopoietic precursors, with various growth factors (such as IL1, IL3, IL6, IL7, and Epo), to induce myeloid, erythroid and lymphoid lineage colony formation. The finding that KITLG is also expressed in the nervous system suggests a possible role for KITLG in the development of the nervous system.

Sterile Filtered White lyophilized powder. Purified and tested for use in cell culture.

Product Specifications

Catalog ID 1320-01
MW ~18.4 kDa
Storage/Handling Store desiccated at -20°C.
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Packs & Pricing
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1320-01-10 In stock 10 μg $ 165.00
1320-01-100 3-4 Weeks 100 μg $ 745.00
1320-01-500 3-4 Weeks 500 μg $ 1,539.00

KITLG (SCF), Rat

Catalog ID Size Pricing
1520-01-10 10 μg $ 165.00

Description

KIT Ligand (KITLG), also called Stem Cell Factor (SCF) which binds to the c-Kit receptor is produced by fibroblasts and endothelial cells. The soluble and transmembrane forms of the protein are formed by alternative splicing of the same RNA transcript and the presence of both soluble and transmembrane SCF is required for normal hematopoietic function. SCF plays an important role in hematopoiesis, spermatogenesis and melanogenesis and it promotes mast cell adhesion, migration, proliferation, and survival. Rat KITLG shares 75­-90% amino acid sequence identity with canine, feline, mouse, and human KITLG. Furthermore, rat KITLG is active on mouse and human cells, but human KITLG is only weakly active on mouse cells.

Product Specifications

Catalog ID 1520-01
MW ~18.5 kDa
Storage/Handling Store desiccated at -20°C.
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Packs & Pricing
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1520-01-10 3-4 Weeks 10 μg $ 165.00

L-Sorbose

Catalog ID Size Pricing
S-125-50G 50 g $ 78.00
S-125-100 100 g $ 137.00
S-125-250 250 g $ 232.00
S-125-500 500 g $ 375.00
S-125-1 1 kg $ 613.00

Description

Sorbose is a ketose belonging to the group of sugars known as monosaccharides. L-Sorbose is the configuration of the naturally-occurring sugar and has a sweetness equivalent to that of sucrose. L-Sorbose is often used as a starting reagent for the biosynthesis of ascorbic acid and forms a colorless, clear solution when dissolved in water.

Product Specifications

Catalog ID S-125
CAS # 87-79-6
MW 180.16 g/mol
Storage/Handling Store at room temperature.
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Packs & Pricing
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S-125-50G 2-3 Weeks 50 g $ 78.00
S-125-100 2-3 Weeks 100 g $ 137.00
S-125-250 2-3 Weeks 250 g $ 232.00
S-125-500 2-3 Weeks 500 g $ 375.00
S-125-1 2-3 Weeks 1 kg $ 613.00

N-Succinyl-L-alanyl-L-alanyl-L-prolyl-L-phenylalanine 4-nitroanilide

Catalog ID Size Pricing
S-950-10 10 mg $ 106.00
S-950-25 25 mg $ 177.00
S-950-50 50 mg $ 282.00
S-950-100 100 mg $ 441.00
S-950-250 250 mg $ 881.00

Description

N-Succinyl-L-alanyl-L-alanyl-L-prolyl-L-phenylalanine 4-nitroanilide is a colorimetric substrate for peptidyl prolyl isomerase, chymotrypsin and human leukocyte cathepsin G.

Product Specifications

Catalog ID S-950
CAS # 70967-97-4
MW 624.64 g/mol
Storage/Handling Store at -20°C.
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Packs & Pricing
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S-950-10 2-3 Weeks 10 mg $ 106.00
S-950-25 2-3 Weeks 25 mg $ 177.00
S-950-50 2-3 Weeks 50 mg $ 282.00
S-950-100 2-3 Weeks 100 mg $ 441.00
S-950-250 2-3 Weeks 250 mg $ 881.00

Nourseothricin Sulfate (Streptothricin Sulfate) (NTC or clonNAT)

Catalog ID Size Pricing
N-500-100 100 mg $ 85.00
N-500-500 500 mg $ 225.00
N-500-1 1 g $ 329.00
N-500-2 2 x 1 g $ 599.00
N-500-3 3 x 1 g $ 855.00
N-500-4 4 x 1 g $ 1,089.00
N-500-5 5 x 1 g $ 1,299.00

Description

Nourseothricin is a broad-spectrum antibiotic derived from Streptomyces noursei. In addition to being effective on prokaryotic cells of gram-positive and gram-negative bacteria, various fungi including Candida albicans, and certain DNA and RNA viruses, it is also effective on eukaryotic cells of higher eukaryotes. It has been used as a selection agent for cells containing the gene conferring resistance to it.

GoldBio nourseothricin is a mixture of four streptothricin compounds: D and F (>85%) as well as C and E (<15%).

Product Specifications

Catalog ID N-500
CAS # 96736-11-7
MW Streptothricin D (758.86 g/mol), Streptothricin F (502.52 g/mol), Streptothricin E (630.69 g/mol), Streptothricin C (887.04 g/mol)
Storage/Handling Store desiccated at 4°C.
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N-500-100 In stock 100 mg $ 85.00
N-500-500 In stock 500 mg $ 225.00
N-500-1 In stock 1 g $ 329.00
N-500-2 In stock 2 x 1 g $ 599.00
N-500-3 In stock 3 x 1 g $ 855.00
N-500-4 In stock 4 x 1 g $ 1,089.00
N-500-5 In stock 5 x 1 g $ 1,299.00

Plastic Spin Columns

Catalog ID Size Pricing
P-300 800 μL $ 225.00

Description

Gold Biotechnology gravity flow, Empty Spin Columns are an excellent option for small quantity protein purification processes. Customers may buy bulk resins and then pack their own his tag purification columns as an economic option.

The Spin Column serves as a tool for purification using small quantities of resin (50 – 100 µl). It is a single-use format for purifications with syringe (luer lock system) or by centrifugation.

Product Specifications

Catalog ID P-300
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P-300 In stock 800 μL $ 225.00

Ponceau S Solution 1 mg/mL

Catalog ID Size Pricing
P-330-SL1 1 L $ 92.00

Description

Ponceau S is the sodium salt of a diazo dye used as a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF.It is often used in the staining of polypeptides to be later blot-sequenced because it does not adversely affect the sequencing of the blotted peptides.The stain is also reversible with water washes, preferable for immunological detection, and can even be completely removed.Ponceau S is a negatively charged stain which binds to positively charged amino acids as well as non-polar regions of proteins. The limit of detection for Ponceau S is ~250 ng of protein.

Product Specifications

Catalog ID P-330-SL
MW 760.57 g/mol
Grade MOLECULAR BIOLOGY GRADE
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Packs & Pricing
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P-330-SL1 In stock 1 L $ 92.00

Proteinase K Solution 20 mg/ml

Catalog ID Size Pricing
P-480-SL2 2 mL $ 49.00
P-480-SL4 4 mL (2 x 2 mL) $ 79.00
P-480-SL10 10 mL $ 159.00

Description

Proteinase K is a highly reactive nonspecific serine protease that belongs to the subtilisin family of proteins. It cleaves at the carboxylic acid side of aliphatic, aromatic, or hydrophobic amino acids. Proteinase K is capable of inactivating RNases and DNases and is used in the isolation or preparation of high molecular weight nucleic acids. Proteinase K is also useful for helping to characterize enzymes, due to its cleavage specificity. This enzyme was designated proteinase K because of its ability to hydrolyze keratin. Proteinase K is stable in a wide variety of detergents and buffer salts and at various temperatures and pH. The isoelectric point of proteinase K is 8.9.

Product Specifications

Catalog ID P-480-SL
CAS # 39450-01-6
MW 28.5 kDa
Grade MOLECULAR BIOLOGY GRADE
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Packs & Pricing
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P-480-SL2 In stock 2 mL $ 49.00
P-480-SL4 In stock 4 mL (2 x 2 mL) $ 79.00
P-480-SL10 In stock 10 mL $ 159.00

S-Acetylthiocholine iodide

Catalog ID Size Pricing
A-162-25 25 g $ 219.00
A-162-50 50 g $ 364.00
A-162-100 100 g $ 582.00

Description

No description available

Product Specifications

Catalog ID A-162
CAS # 1866-15-5
Grade MOLECULAR BIOLOGY GRADE
MW 289.18 g/mol
Storage/Handling Store desiccated at 4°C. Protect from light.
UN Number 2811
Item Class 6.1
Group Number III
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Packs & Pricing
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A-162-25 2-3 Weeks 25 g $ 219.00
A-162-50 2-3 Weeks 50 g $ 364.00
A-162-100 2-3 Weeks 100 g $ 582.00

S-Butyrylthiocholine iodide

Catalog ID Size Pricing
B-820-10 10 g $ 131.00
B-820-25 25 g $ 276.00
B-820-50 50 g $ 524.00
B-820-100 100 g $ 814.00

Description

No description available

Product Specifications

Catalog ID B-820
CAS # 1866-16-6
MW 317.23 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C.
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Packs & Pricing
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B-820-10 2-3 Weeks 10 g $ 131.00
B-820-25 2-3 Weeks 25 g $ 276.00
B-820-50 2-3 Weeks 50 g $ 524.00
B-820-100 2-3 Weeks 100 g $ 814.00

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