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American Made
Buy American‑Made Laboratory Products with Confidence
MIDSCI™ is your trusted source for American‑made lab supplies that help support compliance with the Federal Buy American Act and related federal purchasing requirements.
As a family‑owned U.S. laboratory supplier since 1983, we proudly partner with domestic manufacturers to provide high‑quality lab supplies, chemicals, equipment, and instruments made right here in the United States. With a Midwest‑based warehouse and representatives across the country, we deliver reliable products backed by real people and real support.
From everyday lab consumables and reagents to equipment and precision instruments, MIDSCI™ helps labs run efficiently, stay compliant, and support U.S. manufacturing. Whether you’re purchasing for a government facility, federally funded research program, or private lab that values domestic sourcing, MIDSCI™ makes it easy to buy American without sacrificing quality or service.
Contact us for assistance with Buy American–compliant sourcing, documentation, and product recommendations.
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PR1MA™ Non Fat Dry Milk Powder
Solubility: Water
Storage Temp: Room Temperature
Nonfat dry milk for use as a blocking agent during Western Blotting to block non-specific antibody binding and reduce background signal.
- Appearance: Milky, Off-white to cream powder
- Fat: ≤ 1.25%
- Moisture: ≤ 4.50%
- Scorch: ≤ 15.0 mg
- Solubility: Freely soluble in water
- APC: ≤ 10000 cfu/g
- Salmonella (/375g): Negative
- Shelf life: Best if used within 2 years of opening to maintain life sustaining nutritional value under optimal storage conditions
- Country of Origin: USA
Research or further manufacturing use only, not for food or drug use.
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PR1MA™ DPBS 1X Solution
Common Name: Phosphate Buffered Saline 1X Sterile Solution
CAS Number: 7647-14-5, 7447-40-7, 7558-79-4, 7778-77-0, 7732-18-5
Solubility: Water
Storage Temp: Room Temperature
Phosphate Buffered Saline is a buffer solution commonly used in biological research. PBS has many uses because it is isotonic and non-toxic to most cells. These uses include substance dilution and cell container rinsing.
Ready to use sterile 1X solution.
Ingredients
- Sodium Chloride: 137 mM
- Potassium Chloride: 2.7 mM
- Phosphate Buffer: 11.9 mM
- pH: 7.4
- Does not contain Calcium or Magnesium
Research or further manufacturing use only, not for food or drug use.
- Appearance: Clear and Colorless Solution
- pH: 7.25 - 7.55
- Sterile Filtered: Complies
- BSE/TSE Free: BSE/TSE Free
- Country of Origin: USA
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PR1MA™ Sodium Chloride, Powder
CAS Number: 7647-14-5
Molecular Weight: 58.4
Chemical Formula: NaCl
Solubility: Water
Storage Temp: Room Temperature
Research or further manufacturing use only, not for food or drug use.
- Appearance: Fine White Granular Powder
- Acidity or Alkalinity: Pass Test
- Appearance of Solution: Clear, Colorless Solution
- Arsenic : ≤ 1 µg/g
- Assay: 99.0 - 100.5 %
- Barium: Pass Test
- Bromides: ≤ 0.010 %
- Ferrocyanide: Pass Test
- Heavy Metals : ≤ 5 ppm
- Identification (Chloride): Pass Test
- Identification (Sodium): Pass Test
- Loss on Drying: ≤ 0.5 %
- Magnesium & Alkaline Earth Metals: 0.01 %
- Iron(Fe): ≤ 2 µg/g
- Nitrites: ≤ 0.01
- Phosphates : ≤ 0.0025 %
- Sulfate: ≤ 0.020 %
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PR1MA™ Protein Gel-Loading Dye for SDS-PAGE
- Appearance: Slightly Viscous Dark Purple Liquid
- DNase, RNase, protease: Not Detected
- Electrophoresis: Pass Test
- OPTICAL ABS AT 525 NM: 0.15 - 0.35
- OPTICAL ABS BETWEEN 588-594 NM: 0.32 - 0.47
- OPTICAL ABS BETWEEN 635-641 NM: 0.25 - 0.40
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PR1MA™ Novobiocin Sodium Salt
CAS Number: 1476-53-5
Molecular Weight: 634.61
Chemical Formula: C31H35N2NaO11
Solubility: Water
Storage Temp: 2-8°C
Novobiocin Sodium Salt is an antibiotic that is a member of the coumarin class of antibiotics and is mainly effective against Gram-positive bacteria. In microbiology and molecular biology research, Novobiocin Sodium Salt is used as a selective agent.
Research or further manufacturing use only, not for food or drug use.
- Appearance: White to yellow powder
- Description - USP: Meets Test
- Novobiocin (Dried Basis)-USP: ≥ 850 µg/mg
- Identification - USP: Positive
- Specific Rotation Dried Basis - USP: -58 to -50 o
- Identification A - USP: Positive
- Identification B - USP: Positive
- pH(USP): 6.5 - 8.5
- Loss on Drying - USP: ≤ 6.0 %
- Residue on Ignition - USP: 10.5 - 12.0 %
- Crystallinity - USP: Meets Test
- Acetone - USP: ≤ 5000 ppm
- Isooctane - USP: ≤ 5000 ppm
- Assay Use Value: ≥ 845 ug/mg
- Impurities Total HPLC Normal: ≤ 10.0 %
- Impurities Unspecified: ≤ 0.2 %
- Novobiocin-2,3-Carbonate: ≤ 0.6 %
- A-Ring Amide: ≤ 0.3 %
- Decarbamyl Novobiocin: ≤ 5.0 %
- Isonovobiocin: ≤ 3.0 %
- A-Ring Hydroxy: ≤ 1.0 %
- Carbamyl Novobiocin: ≤ 3.0 %
- DES-2-Isobutenyl: ≤ 0.5 %
- DES-A-Ring Alpha-Keto-Carboxylic Acid: ≤ 0.5 %
- O-Desmethylnovobiocin: ≤ 0.3 %
- O-Desmethyl descarbamyl novobiocin: ≤ 0.3 %
- A-Ring Carbamyl: ≤ 0.5 %
- 8- Desmethyl novobiocin: ≤ 0.2 %
- Carbamyl Novobiocin + Decarbamyl Novobiocin + Isonovobiocin: ≤ 11.0 %
- BSE/TSE Free: BSE/TSE Free
- Country of Origin: USA
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PR1MA™ LTS®-Style Pipette Tips
These tips deliver superior accuracy and precision, ensuring reliable and consistent results. We are proud to manufacture our products in the USA and are committed to sustainability.
Our racks and boxes are made from our exclusive post-consumer resin, while the tips and lids are made from 100% virgin polypropylene for optimum clarity and purity.
These tips are the perfect fit for use with Rainin® LiteTouch® pipettors and are compatible with both single- and multi-channel LiteTouch® pipettors.
- Compatible with Rainin® single- and multi-channel LiteTouch® pipettors
- Light force required to add or eject tips
- Available in racked, sterile, filtered sterile, and reload varieties
- Tips are made from medical-grade virgin polypropylene
Rack bases and grids are made from our exclusive 50% post-consumer recycled polypropylene, a reduction of up to 30% in the use of virgin polypropylene per rack of tips.
- Proprietary resin technology facilitates clean release
- Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free
Upgrade your pipetting experience with PR1MA™ LTS®-Style Tips, which feature ultralow ejection force for comfortable, ergonomic pipetting.
Rainin, LTS and LiteTouch are registered trademarks of Mettler-Toledo Rainin, LLC.
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BeadBath Duo™ Water and Bead Bath
The BeadBath Duo™ Water and Bead Bath is the first laboratory bath designed to deliver precise, uniform temperature control when used with either water or Lab Armor® thermal beads. Unlike traditional baths, the BeadBath Duo™ features a dedicated MODE button that allows users to easily switch between Water Mode and Bead Mode. Each mode automatically optimizes the internal heating and sensing elements to ensure accurate and consistent temperature performance.
This versatile design gives laboratories the flexibility to use traditional water baths or take advantage of the growing popularity of bead baths, all in a single instrument. With the press of a button, the BeadBath Duo™ converts between bath types, providing the best of both worlds without compromising accuracy or convenience.
Main Attributes
- Dual operating modes for Beads or Water
- MODE button automatically optimizes heating and sensing for each bath type
- QuikCal™ in-lab calibration for fast, simple temperature adjustment
- Offers all the advantages of a bead bath while retaining water bath capability
- Eliminates constant water refills and reduces burnout risk
- Accessory-free securing of tubes and bottles
- Supports angled incubations
- Maintains continuous operation with no wait for heat-up
The BeadBath Duo™ is an ideal solution for laboratories seeking flexibility, reliability, and precision temperature control in a single compact bath.
*Note: Beads are not included with these items. Find beads for baths here.
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PR1MA™ Sucrose
CAS Number: 57-50-1
Molecular Weight: 342.3
Chemical Formula: C12H22O11
Storage Temp: Room Temperature
Ultra-high purity, double crystallized to remove any remaining inorganic and organic contamination. Produces a clear colorless solution. Used for cultivating protoplasts and "in vitro" multiplication of plant tissue.
Research or further manufacturing use only, not for food or drug use.
- Appearance: Fine White Crystals
- Absorbance 260nm: ≤ 0.07 nm
- Absorbance 280nm: ≤ 0.05
- DNase, RNase, protease: Not Detected
- Heavy Metals: ≤ 0.0005 %
- Identification (IR): Pass
- Purity: ≥ 99.0 %
- Solubility (10% solution in H2O @ 25oC): Pass
- Sulfate: ≤ 0.005 %
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PR1MA™ Phleomycin 20 mg / mL Solution
CAS Number: 11006-33-0
Molecular Weight: 1526.5 g/mol
Chemical Formula: C55H85O21N20S 2Cu • HCl
Solubility: Water
Storage Temp: -20°C
Supplied at a concentration of 20 mg/ml.
Research or further manufacturing use only, not for food or drug use.
- Appearance: Clear Blue Solution
- Concentration: = 20 mg/ml
- Odor: None
- Solubility (20 mg/ml in Water): Freely soluble
- Sterile Filtered: Pass test
- UV Absorbance 244nm (200 ug/ml): 0.75 - 1.05
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PR1MA™ TBE Buffer 10x Powder
CAS Number: 77-86-1; 10043-35-3;6381-92-6/60-00-4
Solubility: Water
Storage Temp: Room Temperature
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PR1MA™ PBS / Tween 20 10X Solution
CAS Number: 7558-79-4, 7778-77-0, 7647-14-5, 7447-40-7, 9005-64-5,
7732-18-5
Solubility: Water
Storage Temp: Room Temperature
Research or further manufacturing use only, not for food or drug use.
- Appearance: Clear, yellow solution
- pH: 7.2 - 7.6
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PR1MA™ Glycine, Free Base
CAS Number: 56-40-6
Molecular Weight: 75.1
Chemical Formula: C2H5NO2
Solubility: Water
Storage Temp: Room Temperature
For use in preparing electrophoresis buffers. Cell culture tested.
Research or further manufacturing use only, not for food or drug use.
- Appearance: White odorless crystalline powder with sweet taste.
- Solubility (5% in water): Clear & colorless
- Identification (IR): Test Passes
- Loss on Drying (@105 oC for 2 hrs): ≤ 0.20 %
- Residue on Ignition: ≤ 0.10 %
- Chloride (Cl): ≤ 0.007 %
- Sulfate: ≤ 0.0065 %
- Heavy Metals: ≤ 0.002 %
- Hydrolyzable Substances: Test Passes
- Related Compound (Diglycine): ≤ 0.1 %
- Related Compound (Triglycine): ≤ 0.1 %
- Related Compound (Glycine Anhydride): ≤ 0.1 %
- Related Compound (Monochloro Acetic Acid): ≤ 0.1 %
- Related Compound (Iminodiacetic Acid): ≤ 0.1 %
- Related Compound (Haxamathylenetetraamine): ≤ 0.1 %
- Related Compound (Total Impurities): ≤ 1.0 %
- Residual Solvent (Chloroform): ≤ 60 mcg/gm
- Residual Solvent (1,4 Dioxane): ≤ 380 mcg/gm
- Residual Solvent (Methylene Chloride): ≤ 600 mcg/gm
- Residual Solvent (Trichloroethylene): ≤ 80 mcg/gm
- Methanol: ≤ 0.3 %
- Assay: 98.5 - 101.5 %
- Arsenic: ≤ 1.0 ppm
- Total Viable Bacterial Count: ≤ 1000 Cfu/gm
- Coliform Count: Negative
- Yeast and Mold Count: ≤ 100 CFU/g
- Test for E-Coli: Absent
- Test for Salmonella: Absent
- Test for S-Aureus: Absent
- Test for Pseudoomonas: Absent
- BSE/TSE Free: BSE/TSE Free
- Grade: USP
- Country of Origin: Report
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