D_Products

Showing 101-116 of 116 items.

Doxycycline Hyclate

Catalog ID Size Pricing
D-500-1 1 g $ 29.00
D-500-10 10 g $ 39.00
D-500-25 25 g $ 75.00
D-500-100 100 g $ 245.00

Description

Doxycycline hyclate is a semisynthetic tetracycline antibiotic effective against bacteria such as Mycoplasma pneumoniae and Haemophilus influenzae. It is also a broad-spectrum inhibitor of matrix metalloproteases (MMPs). Doxycycline hyclate is routinely used to select for cells containing the pcDNA3.1 resistance plasmid in cell line 293 at an effective concentration of 2 μg/mL. It is freely soluble in aqueous solution.

Product Specifications

Catalog ID D-500
CAS # 24390-14-5
MW 512.94 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at 4°C.
View
Packs & Pricing
,
D-500-1 1 g $ 29.00
D-500-10 10 g $ 39.00
D-500-25 25 g $ 75.00
D-500-100 100 g $ 245.00

DTE (Dithioerythritol)

Catalog ID Size Pricing
D-260-5 5 g $ 59.00
D-260-25 25 g $ 135.00
D-260-50 50 g $ 249.00
D-260-100 100 g $ 439.00
D-260-250 250 g $ 1,005.00

Description

Dithioerythritol (DTE) is one of two Cleland's Reagents (along with DTT). The two chemicals are epimers of each other, in which the hydroxyl groups of DTE are in the cis form as opposed to the trans form for DTT.

DTE is a strong reducing agent and is a component of buffers used in protocols for the isolation and purification of proteins.

Product Specifications

Catalog ID D-260
CAS # 6892-68-8
MW 154.25 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store desiccated at -20°C. Protect from light.
View
Packs & Pricing
,
D-260-5 5 g $ 59.00
D-260-25 25 g $ 135.00
D-260-50 50 g $ 249.00
D-260-100 100 g $ 439.00
D-260-250 250 g $ 1,005.00

DTNB (Ellman's Reagent)

Catalog ID Size Pricing
D-250-5 5 g $ 85.00
D-250-25 25 g $ 199.00
D-250-50 50 g $ 365.00
D-250-100 100 g $ 425.00

Description

Yellow crystalline powder that is used for the colorimetric determination of thiol groups in biological samples. DTNB is fairly soluble in water.

Product Specifications

Catalog ID D-250
CAS # 69-78-3
MW 396.36 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at 4°C. Protect from light and heat.
View
Packs & Pricing
,
D-250-5 5 g $ 85.00
D-250-25 25 g $ 199.00
D-250-50 50 g $ 365.00
D-250-100 100 g $ 425.00

DTT (Dithiothreitol) (> 99% pure) Protease free

Catalog ID Size Pricing
DTT10 10 g $ 59.00   $ 55.00
DTT25 25 g $ 129.00   $ 119.00
DTT50 50 g $ 229.00   $ 216.00
DTT100 100 g $ 369.00   $ 347.00
DTT500 500 g $ 1,645.00   $ 1,549.00

Description

Dithiothreitol (DTT) is the common name of the more popular of the two Cleland’s Reagents (the other being Dithioerythritol or DTE). DTT is a powerful reducing agent that forms a stable six-membered ring with an internal disulfide bond which is resistant to oxidation. DTT is often used for the following: reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl) cystamine to break apart the matrix of a polyacrylamide gel, the reduction of disulfide bonds in proteins, the prevention of those bonds from forming between cysteine residues and lastly, DTT is often used to reduce thiolated DNA in order to minimize dimerization.

DTT is a nearly 7-fold stronger reduction agent than βME (β-mercaptoethanol) and has a less offensive odor and is less toxic.

Product Specifications

Catalog ID DTT
CAS # 27565-41-9 / 3483-12-3
MW 154.25 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store desiccated at -20°C.
View
Packs & Pricing
,
DTT10 10 g $ 59.00
$ 55.00
DTT25 25 g $ 129.00
$ 119.00
DTT50 50 g $ 229.00
$ 216.00
DTT100 100 g $ 369.00
$ 347.00
DTT500 500 g $ 1,645.00
$ 1,549.00

Duchefa Gelrite™

Catalog ID Size Pricing
G1101.0100 100 g $ 109.00
G1101.0250 250 g $ 165.00
G1101.1000 1 kg $ 405.00
G1101.5000 5 kg $ 1,245.00

Description

Duchefa GelriteTM is a naturally derived gelling polymer that can be used in a variety of applications as a solidification agent instead of agar. Produced by microbial fermentation, GelriteTM is a highly purified, natural anionic polysaccharide with the variations commonly associated with agar. GelriteTM forms rigid, brittle, agar-like gels at approximately half the use level of agar in presence of soluble salt like Mg2+ and Ca2+. Gels prepared with Gelrite™ are remarkably clear in comparison to those formed with agar. GelriteTM contains no contaminating matters (e.g., phenolic compounds) as found in agar that are toxic to certain sensitive organisms.

Product Specifications

Catalog ID G1101
View
Packs & Pricing
,
G1101.0100 100 g $ 109.00
G1101.0250 250 g $ 165.00
G1101.1000 1 kg $ 405.00
G1101.5000 5 kg $ 1,245.00

Duchefa Thidiazuron

Catalog ID Size Pricing
T0916.0250 250 mg $ 178.00
T0916.0500 500 mg $ 261.00
T0916.1000 1 g $ 400.00

Description

Thidiazuron is a cytokinin growth regulator.

Product Specifications

Catalog ID T0916
CAS # 51707-55-2
MW 220.20 g/mol
View
Packs & Pricing
,
T0916.0250 250 mg $ 178.00
T0916.0500 500 mg $ 261.00
T0916.1000 1 g $ 400.00

EvaGreen® Dye, 2000x in DMSO

Catalog ID Size Pricing
E-675-50 50 μL $ 210.00

Description

EvaGreen® dye is a green fluorescent nucleic acid dye with features that make the dye useful for several applications including qPCR and DNA melt curve analysis, real-time monitoring of thermophilic helicase-dependent amplification (tHDA), and capillary gel electrophoresis. The DNA-bound dye has excitation and emission spectra very close to those of fluorescein (FAM) or SYBR® Green I, making the dye readily compatible with instruments equipped with the 488 nm argon laser or any visible light excitation with wavelength in the region. EvaGreen® dye is extremely stable both thermally and hydrolytically, providing convenience during routine handling. The dye is essentially nonfluorescent by itself, but becomes highly fluorescent upon binding to dsDNA. EvaGreen® dye is nonmutagenic and noncytotoxic by being completely impermeable to cell membranes, making it a great alternative to SYBR® Green I, which enters cell rapidly and is known to be a powerful mutation-enhancer (Ohta, et al. (2001). Mutation Research, 492(1), 91-97).

Product Specifications

Catalog ID E-675
View
Packs & Pricing
,
E-675-50 50 μL $ 210.00

EvaGreen® Dye, 20x in Water

Catalog ID Size Pricing
E-670-1 1 mL $ 52.00
E-670-5 5 x 1 mL $ 227.00

Description

The unique properties of EvaGreen® dye have made it particularly useful in quantitative real-time PCR (qPCR) applications. Compared with the widely used SYBR® Green I, EvaGreen® dye is generally less inhibitory toward PCR and less likely to cause nonspecific amplification. As a result, EvaGreen® dye can be used at a much higher dye concentration than SYBR® Green I, resulting in a high resolution signal for droplet digital PCR, real-time PCR and melt curve analysis.

Product Specifications

Catalog ID E-670
Storage/Handling Store at 4°C. Protect from light.
View
Packs & Pricing
,
E-670-1 1 mL $ 52.00
E-670-5 5 x 1 mL $ 227.00

Illumination™ Dura-Luc Lyophilized Firefly HTS Assay Kit

There is no image for Illumination™ Dura-Luc Lyophilized Firefly HTS Assay Kit Illumination™ Dura-Luc Lyophilized Firefly HTS Assay Kit
Catalog ID Size Pricing
I-946-120 120 Assays $ 95.00
I-946-1000 1000 Assays $ 604.00
I-946-10000 10,000 Assays $ 3,335.00

Description

GoldBio’s Illumination™ Dura-Luc Lyophilized Firefly HTS Assay Kit contains a proprietary formulation that modifies and stabilizes the enzymatic reaction to produce a long lasting bioluminescent signal by preventing the formation of adenyl-oxyluciferin at the enzyme surface. The Dura-Luc system is a highly sensitive and homogenous luciferase reporter assay that has a signal half-life of three hours for the best quantification of expression in mammalian cell lines, allowing for batch processing and plate to plate comparisons in high-throughput screening experiments.

Firefly Luciferase Assays are one of the leading reporter assays in the world in the measurement of gene function and gene regulation as well as being widely used in pharmaceutical screening. The luciferase assays are sensitive and convenient due to the absence of endogenous luciferase activity in most cell types and tissue. Firefly luciferase is a monomeric 62 kDa protein typically isolated from the firefly, Photinus pyralis, which catalyzes the ATP-dependent D-luciferin in the presence of oxygen and Mg2+ to oxyluciferin producing a yellow to greenish light (~560 nm).

The Dura-Luc Lyophilized Firefly Kit contains an assay buffer that is provided in a lyophilized form for economical shipping and more convenient storage. A reconstitution buffer is also provided with this kit.

Product Specifications

Catalog ID I-946
Storage/Handling Store the kit at -20°C.
View
Packs & Pricing
,
I-946-120 120 Assays $ 95.00
I-946-1000 1000 Assays $ 604.00
I-946-10000 10,000 Assays $ 3,335.00

n-Dodecyl-B-D-maltoside (DDM)

Catalog ID Size Pricing
DDM5 5 g $ 135.00
DDM10 10 g $ 260.00
DDM25 25 g $ 605.00
DDM50 50 g $ 1,085.00
DDM100 100 g $ 1,969.00

Description

The primary attribute of DDM is its capability to extract hydrophobic proteins while maintaining the solution-phase protein conformation. DDM also allows the protein to be reformed following denaturization. Most membrane-bound proteins are α-helix bundles, which are less robust to changes in their cellular environment. DDM offers a detergent capable of preserving these proteins. This is in contrast to other, harsher ionic detergents that destabilize and permanently denature α-helical membrane-bound proteins. DDM has been used to solubilize the multidrug-transporter protein, EmrE, as well as the nucleoside-specific porin protein, Tsx.

Product Specifications

Catalog ID DDM
CAS # 69227-93-6
MW 510.63 g/mol
Storage/Handling Store at -20°C. Protect from light.
View
Packs & Pricing
,
DDM5 5 g $ 135.00
DDM10 10 g $ 260.00
DDM25 25 g $ 605.00
DDM50 50 g $ 1,085.00
DDM100 100 g $ 1,969.00

n-Dodecyl-beta-D-glucopyranoside

There is no image for n-Dodecyl-beta-D-glucopyranoside n-Dodecyl-beta-D-glucopyranoside
Catalog ID Size Pricing
D-850-1 1 g $ 65.00
D-850-2 2 g $ 115.00
D-850-5 5 g $ 275.00
D-850-10 10 g $ 485.00
D-850-25 25 g $ 1,055.00

Description

n-Dodecyl-beta-D-glucopyranoside is a sugar based detergent and reagent for chemical synthesis.

Product Specifications

Catalog ID D-850
CAS # 59122-55-3
MW 348.47 g/mol
Storage/Handling Store at -20°C. Protect from light.
View
Packs & Pricing
,
D-850-1 1 g $ 65.00
D-850-2 2 g $ 115.00
D-850-5 5 g $ 275.00
D-850-10 10 g $ 485.00
D-850-25 25 g $ 1,055.00

Neutral red dye (content >90%)

Catalog ID Size Pricing
N-130-100 100 g $ 185.00
N-130-250 250 g $ 355.00
N-130-500 500 g $ 575.00

Description

Neutral red dye is a dark brown to dark green power used to stain nuclei red, in cell viability tests, and as a pH indicator (transition of pH indicator: pH 6.8-8.0, red to yellow). Additionally, it is used to prepare neutral red paper and as a histological stain for lysozymes.

Product Specifications

Catalog ID N-130
CAS # 553-24-2
MW 288.78 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at 4°C. Protect from light.
View
Packs & Pricing
,
N-130-100 100 g $ 185.00
N-130-250 250 g $ 355.00
N-130-500 500 g $ 575.00

Sodium Molybdate

Catalog ID Size Pricing
S-920-250 250 g $ 39.00
S-920-500 500 g $ 69.00
S-920-1 1 kg $ 135.00
S-920-2.5 2.5 kg $ 279.00

Description

No description available

Product Specifications

Catalog ID S-920
CAS # 10102-40-6
MW 241.95 g/mol
View
Packs & Pricing
,
S-920-250 250 g $ 39.00
S-920-500 500 g $ 69.00
S-920-1 1 kg $ 135.00
S-920-2.5 2.5 kg $ 279.00

Sodium Tartrate

Catalog ID Size Pricing
S-940-250 250 g $ 39.00
S-940-500 500 g $ 69.00
S-940-1 1 kg $ 125.00
S-940-2.5 2.5 kg $ 219.00

Description

No description available

Product Specifications

Catalog ID S-940
CAS # 868-18-8
MW 194.05 g/mol
View
Packs & Pricing
,
S-940-250 250 g $ 39.00
S-940-500 500 g $ 69.00
S-940-1 1 kg $ 125.00
S-940-2.5 2.5 kg $ 219.00

Sterile Filtered DMSO

Catalog ID Size Pricing
D-361-10 10 mL $ 55.00
D-361-25 25 mL $ 79.00
D-361-5x10 5 x 10 mL $ 115.00

Description

Dimethylsulfoxide (DMSO) is a very polar organic compound that is useful in organic chemistry for solubilizing organic and inorganic compounds. DMSO is also used as a cryoprotectant for cell media, preventing the formation of ice crystals which would otherwise damage cells. DMSO can be used in PCR reactions to inhibit the self-complementation of DNA or PCR primers and increase amplification, especially for DNA sequences which have GC rich sequences.

GoldBio's DMSO is filter sterilized through a 0.2 μg filter. Sterile DMSO is ideal for working with tissue culture or cell culture in which there is a need for eliminating all potential sources of contamination.

Product Specifications

Catalog ID D-361
CAS # 67-68-5
MW 78.13 g/mol
Storage/Handling Store at room temperature, protect from light.
View
Packs & Pricing
,
D-361-10 10 mL $ 55.00
D-361-25 25 mL $ 79.00
D-361-5x10 5 x 10 mL $ 115.00

VersaLadder™, 100-10,000 bp

Catalog ID Size Pricing
D012-500 500 µL $ 62.00
D012-1000 2 x 500 μL $ 115.00
D012-1500 3 x 500 μL $ 165.00
D012-2000 4 x 500 μL $ 210.00
D012-2500 5 x 500 μL $ 245.00
D012-3000 6 x 500 μL $ 275.00

Description

A unique combination of a number of proprietary plasmids digested with appropriate restriction enzymes and PCR products to yield 19 fragments, suitable for use as molecular weight standards for agarose gel electrophoresis. The DNA includes fragments ranging from 100-10,000 base pairs. The 500, 1.5K and 3K bands have increased intensity to serve as reference points. The approximate mass of DNA in each band is provided (0.5 μg a load) for approximating the mass of DNA in comparably intense samples of similar size. The ladder is ready-to-use, and is premixed with loading buffer dye for direct loading on gel.

Product Specifications

Catalog ID D012
Storage/Handling Store at room temperature for 6 months. Store at -20°C for 24 months.
View
Packs & Pricing
,
D012-500 500 µL $ 62.00
D012-1000 2 x 500 μL $ 115.00
D012-1500 3 x 500 μL $ 165.00
D012-2000 4 x 500 μL $ 210.00
D012-2500 5 x 500 μL $ 245.00
D012-3000 6 x 500 μL $ 275.00

Join our list to receive promos and articles.

Join Now