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™ Yeast Nitrogen Base without Amino Acids

Solubility: Water
Storage Temp: Room Temperature

For classifying yeasts based on amino acid and carbohydrates requirements. Contains all essential vitamins and inorganic salts necessary for the cultivation of yeasts. Excludes histidine methionine, tryptophan and carbon source. Also contains <1 mg/L each of vitamins and trace inorganic salts.

Research or further manufacturing use only, not for food or drug use.

  • DCM Appearance: Free flowing powder, Homogeneous, Off white to cream
  • PPM Appearance: Pale to light yellow (10X Solution)
  • pH (0.67% Solution @25 oC): 5.2 - 5.6
  • Microorganism Koleckera Apiculata ATCC 9774 (With Additives): Good to Excellent
  • Microorganism Saccharomyces Cerevisiae ATCC 9080 (With Additives): Good to Excellent
  • Microorganism Saccharomyces Cerevisiae ATCC 9763 (With Additives): Good to Excellent
  • Microorganisms Candida Albicans ATCC 10231 (With Additives): Good to Excellent

Proudly made in the USA! Click here for more made in America products!


Labcon Zap™ Slik Aerosol For Rainin® LTS® Pipettor Tips


ZAP
™ Slik Aerosol filter Pipette Tips from Labcon combine the higher standard of ZAP™ filters with our own unique low retention pipette tips. 

 

Packaging

96 Rack
Offer workhorse reliability and versatility. They have heavy hook hinges that are extremely durable and an ergonomic snap-latch that won’t catch gloves. Smooth rounded edges and a reinforced seal make these racks durable additions to your lab. Strong enough to be autoclaved many times. The separate rack insert includes a beveled top an extra-sturdy surface for multi-channel pipetting. A vent in the rack sides allows steam autoclaving to be more efficient and assures your tips are sterile. The long thin design of the 192 rack allows for more working space on the lab bench.

Eclipse™ UNO Refills
Bring the same ease, value, and low carbon footprint of Eclipse™ refills to aerosol filter tips. These refills use a validated sterile process and include an expiration date on every pack. Eclipse™ packaging is made exclusively from recyclable and renewable materials.

*Note: Rainin, LiteTouch and LTS are registered trademarks of Mettler-Toledo Rainin, LLC. 

Proudly made in the USA! Click here for more made in America products!

Item#:
ASLABCONZAPRAININLTS


PR1MA™  Lysozyme from Chicken Egg White, Salt Free

CAS Number: 12650-88-3
Solubility: Water
Storage Temp: 2-8°C

Purified from chicken egg white, 2x crystallized, dialyzed and supplied as a salt free lyophilized powder.

Dry powder stable for 3 - 5 years when stored dry at 2°C to 8°C.

Stock solution is stable up to 3 days at 4°C and up to 1 year at -20°C.

Research or further manufacturing use only, not for food or drug use.

  • Appearance: 2X Crystallized; dialyzed, lyophilized powder
  • A 280@ mg/ml: Report
  • Protein: Report %
  • U/mg dw (Unit Per mg Dry Weight): ≥ 8000
  • Raw Material Species: Chicken Egg Whites
  • Country of Origin: Report

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PR1MA™ Acrylamide/bis-Acrylamide, 37.5:1 Ratio Solution

CAS Number: 79-06-1; 110-26-9; 7732-18-5
Storage Temperature: 2-8°C

A 40% solution containing 38.96% (w/v) Acrylamide and 1.04% (w/v) bis-Acrylamide for a monomer to crosslinker ratio of 37.5:1.

WARNING!
This product can expose you to Acrylamide, a chemical which is known to the State of California to cause cancer, developmental and reproductive harm. For more information go to www.P65Warnings.ca.gov.

Research or further manufacturing use only, not for food or drug use.

  • Appearance: Clear, colorless solution
  • Conductivity of Solution: ≤ 10 µmhos
  • Electrophoresis: Pass Test
  • pH: Report

Proudly made in the USA! Click here for more made in America products!  


PR1MA™ Acrylamide/bis-Acrylamide, Premixed Powder 19:1 Ratio

Storage Temp: Room Temperature

Pre-measured powder blend of acrylamide and bis-acrylamide for simple stock solution preparation.

WARNING!
This product can expose you to Acrylamide, a chemical which is known to the State of California to cause cancer, developmental and reproductive harm. For more information go to www.P65Warnings.ca.gov.

Research or further manufacturing use only, not for food or drug use.

  • Appearance: Powder
  • Solubility: Clear and complete
  • Conductivity: ≤ 10 µmhos

Proudly made in the USA! Click here for more made in America products!  


Labcon Screw Caps with O-Rings for SuperClear® Tubes
 
For Labcon SuperClear® Screw Cap Microcentrifuge Tubes. 

  • Ethylene propylene O-ring
  • Endotoxin Free (non-pyrogenic)
  • Polyethylene USP Class VI resin
  • Autoclavable
  • Caps are in resealable bags

Proudly made in the USA! Click here for more made in America products!

Item#:
ASLABORINGCAPSS
[Phosphate Buffered Saline 1X Sterile Solution]

PR1MA™  PBS 1X Solution [Phosphate Buffered Saline 1X Sterile 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

Proudly made in the USA! Click here for more made in America products!


PR1MA™ Acrylamide/bis-Acrylamide, 29:1 Ratio Solution

CAS Number: 79-06-1; 110-26-9; 7732-18-5
Storage Temp: 2-8°C

A 40% solution containing 38.67% (w/v) Acrylamide and 1.33% (w/v) bis-Acrylamide for a monomer to crosslinker ratio of 29:1.

WARNING!
This product can expose you to Acrylamide, a chemical which is known to the State of California to cause cancer, developmental and reproductive harm. For more information go to www.P65Warnings.ca.gov.

Research or further manufacturing use only, not for food or drug use.

  • Appearance: Clear Colorless Solution
  • Conductivity of Solution: ≤ 10 µmhos
  • Electrophoresis: Pass Test
  • pH @25 oC: Report

Proudly made in the USA! Click here for more made in America products!  


PR1MA™ Tween 20

Common Name: Polyoxyethylenesorbitan Monolaurate
CAS Number: 9005-64-5
Solubility: Water
Storage Temp: Room Temperature

Fatty acid composition:

  • Lauric acid: Approximately 50%
  • Balance: Myristic, Palmitic and Stearic acids.

Shipping Weight: 1.2 lbs
Shipping Dimensions: 2.00 x 6.00 x 2.00

Specifications

Appearance: Yellow to amber viscous liquid
1,4-Dioxane: ≤ 10 ppm
Acid Value: ≤ 2.20 mg KOH/g
Color, Gardner: ≤ 5.0
Hydroxyl Value: 96 - 108 mgKOH/g
Saponification Value: 40.0 - 50.0 mg KOH/g
Water: ≤ 3.00 %

Research or further manufacturing use only, not for food or drug use.

Proudly made in the USA! Click here for more made in America products!

PR1MA™ Acrylamide, 40% Solution

CAS Number: 79-06-1; 7732-18-5
Storage Temperature: 2-8°C

A 40% (w/v) Acrylamide solution.

WARNING! This product can expose you to Acrylamide, a chemical which is known to the State of California to cause cancer, developmental and reproductive harm. For more information go to www.P65Warnings.ca.gov.

Research or further manufacturing use only, not for food or drug use.

  • Appearance: Clear, Colorless Solution
  • Acrylic Acid: ≤ 0.003 %
  • Conductivity: ≤ 5 µmhos
  • DNase, RNase, protease: Not Detected
  • Electrophoresis: Pass Test
  • pH @25 °C: 6.0 - 7.0

Proudly made in the USA! Click here for more made in America products!


Labcon Screw Caps for SuperClear® Microcentrifuge Tubes

  • With integral elastomeric seal
  • Cap includes soft griping surface
  • Endotoxin Free (non-pyrogenic)
  • Autoclavable
  • Caps are in resealable Bags

Proudly made in the USA! Click here for more made in America products!

Item#:
ASLABSCREWCAPSS

PR1MA™  G-418 Disulfate 50 mg / mL Solution

CAS Number: 108321-42-2
Molecular Weight
: 692.7
Chemical Formula: C20H40N4O10 • 2H2SO4
Solubility: Water
Storage Temp: 2-8°C

Aminoglycoside antibiotic used as a selective agent in transformation experiments.
 
Dissolved in Molecular Biology Grade Water and sterile filtered.
 
Research or further manufacturing use only, not for food or drug use.
  • Appearance: Clear Colorless Solution
  • Absorbance @ 280nm (1mg/mL in H2O): ≤ 0.015 nm
  • Absorbance @ 570nm (100mg/mL in H2O): ≤ 0.10 nm
  • Potency (Dried basis): ≥ 700 µg/mg
  • Sterility: Filtered through 0.22 µm filter Into sterile PETG bottles

Proudly made in the USA! Click here for more made in America products!  

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