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Molecular Biology Reagents/Chemicals
MIDSCI gives you ultra-pure, cost-competitive molecular biology reagents and lab chemicals for life science research; often with significant cost savings over Sigma Aldrich and other lab reagent providers.
PR1MA Chemicals can help with a wide variety of research-based requirements.
Use our glycerol for polyacrylamide gel electrophoresis. Eliminate Agrobacterium after inoculation with the carbenicillin we carry. Or detect β-Galactosidase activity with X-GAL which, when combined with the IPTG we stock, can be used to detect lac gene expression in cloning applications.
We also carry Luria Broth (Lennox), for the propagation and maintenance of E. coli; DTT, in order to maintain –SH groups in a reduced state; and high gel strength agar for tissue culture and microbiological work.
Electrophoresis Buffers
QuickSilver - TAE (Tris-acetate-EDTA)
TAE is ideal for separation of large DNA fragments in agarose gels and is used as running buffer and in gel preparation.
TAE is the buffer of choice when recovering DNA from gels and when downstream processing involves enzymatic reactions. Final concentration of a 1X working solution is 40mM Tris, 20mM acetic acid, 1mM EDTA.
QS1000 QuickSilver TAE Buffer, 1X, 100 packs
QuickSilver - TBE (Tris-borate-EDTA)
TBE is used in gel preparation and as a running buffer for electrophoresis of nucleic acids. TBE works best for resolution of smaller fragments (<2kb). Its higher buffering capacity makes it useful for longer runs. The final concentration of a 1X working solution is 89mM Tris, 89mM boric acid, 2mM EDTA.
QS1001 QuickSilver TBE Buffer, 1X, 50 packs
QuickSilver - Fast Running Buffer
QuickSilver Fast Running Buffer is a proprietary blend formulated for agarose gel electrophoresis at high voltage (300-350V). Its strong buffering capacity minimizes heat generation all allows for extremely fast separation of fragments smaller than 5kb. A typical 30-minute run can be performed in just 10 minutes using this buffer.
QS1002 QuickSilver Fast Running Buffer, 1X, 100 packs
Protein Electrophoresis Buffers
QuickSilver™ TGS (Tris-Glycine-SDS)
Tris-Glycine-SDS is one of the most common running buffers used for SDS-PAGE. A 1X solution contains 25mM Tris, 192mM Glycine and 0.1% SDS.
QS1100 QuickSilver Tris Glycine-SDS Buffer, 1X, 50 packs
QuickSilver™ Tris-MES-SDS
Small to medium molecular weight proteins can be resolved on SDS-PAGE gels using Tris-MES-SDS as a running buffer. Proteins resolve faster in gels using Tris-MES-SDS as a running buffer than those using Tris-MOPS-SDS. A 1X solution has a final concentration of 50mM Tris, 50mM MES, 0.1% SDS and 1mM EDTA.
QS1101 QuickSilver Tris-MES-SDS Buffer, 1X, 50 packs
QuickSilver™ Tris-MOPS-SDS
Tris-MOPS-SDS is ideal for use as a running buffer when resolving medium to large proteins with SDS-PAGE. Gels run with Tris-MOPS-SDS buffer run slower than those using Tris-MES-SDS buffer. The final concentration of a 1X working solution is 50mM Tris, 50mM MOPS, 0.1% SDS and 1mM EDTA.
QS1102 QuickSilver Tris-MOPS-SDS, 1X, 50 packs
Western Blotting, ELISA, Cell Culture, Chromatography
QuickSilver™ PBS and PBST
Because its osmolality and ion concentration closely mimic that of the human body, PBS is commonly used for cell culture applications, as well as HPLC and MS. PBST is a wash buffer and diluent for ELISA. The 1X PBS solution contains 137mN NaCl, 2.7mM KCl and 10mM phosphate. PBST is supplemented with 0.05% Tween-20.
QS1200 QuickSilver PBS Buffer, 1X, 100 packs
QS1201 QuickSilver PBST Buffer, 1X, 100 packs
QuickSilver™ TBS and TBST
TBS and TBST are used to maintain pH within a very narrow range for a variety of applications including western blotting and immunoassays. The final concentration of a 1X working solution is 137mM NaCl, 2.7mM KCl, 50mM Tris. In addition, 1X TBST contains 0.1% Tween-20.
QS1202 QuickSilver TBS buffer, 1X, 100 packs
QS1203 QuickSilver TBST buffer, 1X, 100 packs
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PR1MA™ Agarose SS, Super High Strength, Molecular Biology Grade
CAS Number: 9012-36-6
Solubility: Water
Storage Temperature: Room Temperature
For DNA/RNA fragments >1000 bp. Ideal for separating larger molecules.
DNAse/RNase free.
Gel Strength, 1%:
>1800 g/cm2
Gel Strength, 1.5%:
>3200 g/cm2
Gelling Temperature:
35-37°C
Melting Temperature:
87-89°C
Sulfate:
<0.12%
EEO:
<0.13%
Research or further manufacturing use only, not for food or drug use.
- Appearance: Fine white homogeneous powder
- DNase/ RNase: Not Detected
- Gelling Temperature: ≥ 10 oC
- Melting Point: 80 - 100 oC
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PR1MA™ Agarose 3:1, Molecular Biology Grade
CAS Number: 9012-36-6
Solubility: Water
Storage Temperature: Room Temperature
Molecular Biology Grade. For DNA/RNA fragments 150-1500bp. Exceptional gel
strength. DNase/RNase free.
Gel Strength, 4%: ≥ 1400 g/cm2
Gelling Temperature (4%):
32-28°C
Melting Temperature (4%):
90°C
Sulfate:
<0.15%
EEO:
<0.13
Research or further manufacturing use only, not for food or drug use.
- Appearance: White to Off White Powder
- EEO: ≤ 0.13 -Mr
- Gelling Temperature: 32.5 - 38.0 oC
- Gel Strength : ≥ 1400 g/cm2
- Melting Temperature: ≤ 90.0 oC
- Moisture Content: ≤ 10.0 %
- Sulfate: ≤ 0.15 %
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PR1MA™ TRIS Hydrochloride [Tris(hydroxymethyl) aminomethane HCl]
Common Name: Tris(hydroxymethyl) aminomethane hydrochloride
CAS Number: 1185-53-1
Molecular Weight: 157.6
Chemical Formula: C4H11NO3 • HCl
Solubility: Water
Storage Temperature: Room Temperature
Highly purified for use in molecular biology applications.
Research or further manufacturing use only, not for food or drug use.
- Appearance: White crystalline
- Assay: 99.0 - 101.0 %
- pH (1% aqueous solution): 4.2 - 5.0
- Solubility (1M Solution in Water ) : Clear, colorless solution
- UV Absorbance @260nm, 1.0 M in H2O: ≤ 0.06
- UV Absorbance @280nm, 1.0 M in H2O: ≤ 0.05
- Identification: Conforms
- Heavy Metals : ≤ 5 ppm
- Grade: USP
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PR1MA™ Nystatin
CAS Number: 1400-61-9
Molecular Weight: 926.1
Chemical Formula: C47H75NO17
Solubility: DMSO
Storage Temperature: 2-8°C
Polyene antifungal antibiotic produced by Streptomyces noursei.
Research or further manufacturing use only, not for food or drug use.
- Appearance: Yellow to light tan powder
- Crystallinity: Pass Test
- Identification: Pass Test
- Loss on Drying: ≤ 5.0 %
- pH @25 °C: 6.0 - 8.0
- Potency (Assay): ≥ 4400 U/mg
- Suspendability: Pass Test
- Residual Solvent (n-butanol): ≤ 1000 ppm
- Residual Solvent (Methanol): ≤ 3000 ppm
- Residual Solvent (Acetone): ≤ 5000 ppm
- Residual Solvents: The following Class 1,2, or 3 Solvents may be present in this product. All comply with the limits prescribed in the current USP.
For a Limited Time,
Buy One Order of PR1MA Agarose (500g), Receive Another Order for Free!
Valid through December 31, 2022
This promo cannot be combined with other promotions or discounts. Institutional pricing not valid. All terms apply.
PR1MA™ Agarose
Agarose is a low EEO, multi-purpose, standard melting point agarose that yields high resolution sharp DNA bands with high clarity and low background. Its optimized gel strength enhances ease of gel processing and handling. Manufactured using innovative organic solvent free manufacturing process that is more environment friendly.
Application: Ideal for routine DNA and RNA gel electrophoresis and blotting
Features:
- High purity and Multi-purpose;
- Low background and high resolution;
- Optimized gel strength for ease of gel preparation
Specifications:
AppearanceWhite to off-white powder
Water
7% max.
Solubility
Clear colorless solution at 1G plus
100 mL waterGel strength(1% Gel)
1200 g/cm2min.
EEO(Electroendosmosis(-Mr)
0.13 max.
Sulfate
0.15 max.
Ash
0.5 max.
Gelling point(1.5% Gel)
36°C±1.5°C
Grade
Biotechnology grade
CAS
NO.9012-36-6
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PR1MA™ MES Monohydrate [2-(N-Morpholino)-ethanesulfonic acid]
Common Name: 2-(N-Morpholino)ethanesulfonic acid
CAS Number: 145224-94-8
Molecular Weight: 213.24
Chemical Formula: C6H13NO4S • H 2O
Solubility: Water
Storage Temperature: Room Temperature
Buffer for use in plant tissue culture.
- pKa (20°C): 6.15
- pH range: 5.5 - 6.7
Research or further manufacturing use only, not for food or drug use.
- Appearance: White crystalline powder
- Assay (Titration): ≥ 99.0 %
- Heavy Metals: ≤ 0.0010 %
- Loss on Drying: 7.0 - 10.0 %
- pH: 2.5 - 4.0
- pKa @20 oC: 6.02 - 6.25
- Solubility (10% solution in H2O): Clear
- Sulfate: ≤ 0.01 %
- UV Absorbance 250nm in 10% H2O: ≤ 0.05
- Country of Origin : Report
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PR1MA™ bis-Acrylamide, 2% Solution
CAS Number: 110-26-9
Storage Temperature: 2-8°C
A 2% (w/v) bis-Acrylamide solution.
Research or further manufacturing use only, not for food or drug use.
- Appearance: Clear, colorless liquid
- Conductivity of Solution: Report µmhos
- Electrophoresis: Pass Test
- pH: Report
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PR1MA™ Boric Acid
CAS Number: 10043-35-3
Molecular Weight: 61.83
Chemical Formula: H3BO3
Solubility: Water
Storage Temperature: Room Temperature
For use in preparing electrophoresis buffers.
Research or further manufacturing use only, not for food or drug use.
- Appearance: White Powder
- Calcium (Ca): ≤ 0.005 %
- Chloride: ≤ 0.001 %
- Heavy Metals (as Pb): ≤ 0.001 %
- Insolubles (Methanol): ≤ 0.005 %
- Iron: ≤ 0.001 %
- Nonovolatiles (Methanol): ≤ 0.05 %
- Phosphate: ≤ 0.001 %
- Purity: ≥ 99.5 %
- Sulfate: ≤ 0.01 %
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PR1MA™ Penicillin G Sodium Salt [Benzyl Penicillin Sodium Salt]
Common Name: Benzyl Penicillin Sodium Salt
CAS Number: 69-57-8
Molecular Weight: 356.4
Chemical Formula: C16H17N2NaO4S
Solubility: Water
Storage Temperature: 2-8°C
Inhibitor of bacterial cell wall synthesis. Active against gram positive
and some gram negative bacteria. β-Lactamase sensitive.
Research or further manufacturing use only, not for food or drug use.
- Appearance: White crystalline powder
- Potency : 1500 - 1750 U/mg
- Assay: 96.0 - 102.0 %
- Identification: Pass Test
- Loss on Drying: ≤ 1.0 %
- pH: 5.5 - 7.5
- Specific Optical Rotation: +285 - +310 °
- Absorbance 264 nm: 0.80 - 0.88
- Absorbance 280nm: ≤ 0.10
- Absorbance 325nm: ≤ 0.10
- Related Substances: Conforms to standard
- Bacterial Endotoxins : Conforms to standard
- Sterility: Conforms to standard
- Country of Origin : Report
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PR1MA™ Potassium Acetate
CAS Number: 127-08-2
Molecular Weight: 98.14
Chemical Formula: C2H3O2K
Solubility: Water
Storage Temperature: Room Temperature
Research or further manufacturing use only, not for food or drug use.
- Appearance: White crystalline powder
- Calcium (Ca): ≤ 0.005 %
- Chloride (Cl): ≤ 0.003 %
- Heavy Metals : ≤ 5 ppm
- Insolubles: ≤ 0.005 %
- Iron: ≤ 5 ppm
- Magnesium (Mg): ≤ 0.002 %
- pH (5% in water): 6.5 - 9.0
- Phosphate: ≤ 0.001 %
- Purity: ≥ 99.0 %
- Sodium (Na): ≤ 0.03 %
- Sulfate: ≤ 0.002 %
- Country of Origin: Report
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PR1MA™ Blasticidin S Hydrochloride 10 mg/mL Solution
CAS Number: 3513-03-9
Molecular Weight: 458.9
Chemical Formula: C17H26N8O5 • HCl
Solubility: Water
Storage Temperature: -20°C
A peptidyl nucleoside antibiotic isolated from the culture broth of Streptomyces griseogenes, inhibits protein synthesis in both prokaryotes and eukaryates.
Supplied as a 10mg/ml sterile solution in HEPES buffer.
Research or further manufacturing use only, not for food or drug use.
- Appearance: Clear Solution
- Concentration: 10mg/ml sterile solution
- Description: Colorless solution in HEPES buffer
- pH: 7.2 - 7.5
- Purity: ≥ 98.0 %