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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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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 in made exclusively from recyclable and renewable materials.

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

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

PR1MA  Luria Agar Granulated [Miller's LB Agar]

Common Name: Miller's LB Agar
CAS Number: 91079-40-2; 8013-01-2; 7647-14-5; 9002-18-0
Solubility: Water with Heat
Storage Temp: Room Temperature

For propagation and maintenance of E. Coli.

Dissolve 37 grams in 1 Liter distilled water and adjust the pH to 7.2. Sterilize by autoclaving for 15 minutes.

Ingredients:

  • Tryptone: 10 g / L
  • Sodium Chloride: 10 g / L
  • Yeast Extract: 5 g / L
  • Agar: 12 g / L
Research or further manufacturing use only, not for food or drug use.
  • DCM Appearance: Homogeneous Free Flowing, Light Beige
  • PPM Appearance: Clear, none to light ppt, light yellow
  • pH (2.5 % Solution @25 oC): 6.8 - 7.2
  • Microorganism (E. coli ATCC 23724): Good to Excellent
  • Microorganism (E. coli ATCC 33694): Good to Excellent
  • Microorganism (E. coli ATCC 33849): Fair to Excellent
  • Microorganism (E. coli ATCC 39403): Good to Excellent
  • Microorganism (E. coli ATCC 47014): Good to Excellent
  • Microorganism (E. coli ATCC 53868): Good to Excellent

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

PR1MA LB Broth Powder [Lennox L Broth]

Common Name: Lennox L Broth
Solubility: Water
Storage Temp: Room Temperature

For propagation and maintenance of E. Coli. Low Salt Formula. Molecular Biology Grade.

Dissolve 20 grams in 1 liter distilled water. Then adjust pH to 7.2. Heat and frequently agitate to completely dissolve. Sterilize by autoclaving for 15 minutes.

Ingredients:

  • Tryptone: 10 g/L
  • Yeast Extract: 5 g/L
  • Sodium Chloride: 5 g/L

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

  • DCM Appearance: Homogeneous free flowing, light beige
  • PPM Appearance: Clear, No to light ppt, light yellow
  • pH (2% water) @25°C: 6.8 - 7.2
  • Microorganism (E. coli ATCC 23724): Good to Excellent
  • Microorganism (E. coli ATCC 33694): Good to Excellent
  • Microorganism (E. coli ATCC 33849): Fair to Excellent
  • Microorganism (E. coli ATCC 39403): Good to Excellent
  • Microorganism (E. coli ATCC 47014): Good to Excellent
  • Microorganism (E. coli ATCC 53868): Good to Excellent
  • Sodium Chloride: 5 g/L
  • Yeast Extract: 5 g/L
  • Casein Peptone: 10 g/L

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PR1MA Terrific Broth, Modified, Granulated

CAS Number: 91079-40-2; 8013-01-2; 7778-77-0; 7758-11-4
Solubility: Water
Storage Temp: Room Temperature

Enriched media for maintenance and propagation of E. Coli and plasmid growth. Produces higher cell densities resulting in greater yields of DNA or recombinant proteins. Glycerol is used as a carbon source with this formulation instead of glucose as it will not ferment to acetic acid.

Ingredients:

  • Casein Digest Peptone: 12g/L
  • Yeast Extract: 24g/L
  • Dipotassium phosphate: 9.5g/L
  • Monopotassium phosphate: 2.2g/L

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

  • DCM Appearance: Homogeneous, free flowing beige to yellow-beige
  • PPM Appearance: Clear, yellow to amber no precipitate (ppt)
  • pH (4.76% solution at 25°C): 6.8 - 7.4
  • Microorganism (E. coli ATCC 23724): Good to Excellent
  • Microorganism (E. coli ATCC 33694): Good to Excellent
  • Microorganism (E. coli ATCC 33849): Good to Excellent
  • Microorganism (E. coli ATCC 39403): Good to Excellent
  • Microorganism (E. coli ATCC 47014): Good to Excellent
  • Microorganism (E. coli ATCC 53868): Good to Excellent

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

[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 Terrific Broth Modified Capsules

CAS Number: 91079-40-2; 8013-01-2; 7778-77-0; 7758-11-4
Solubility: Water
Storage Temp: Room Temperature

Terrific Broth formulation packaged in easy to use 24 gram capsules. Formulation from powder.

Add 1 capsule per 500 mL of water. Heat and stir until capsules are completely dissolved. Add 2ml of glycerol to mixture. Sterilize by autoclaving for 15 minutes.

Ingredients:

  • Casein Digest Peptone: 12 g/L
  • Yeast Extract: 24 g/L
  • Dipotassium Phosphate: 9.4 g/L
  • Potassium Phosphate: 2.2 g/L

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

  • Appearance: Water soluble gelatin capsules containing cream to beige free flowing powder.
  • Appearance of Solution: Prepared medium is light to medium amber and clear
  • pH (4.76% solution at 25°C): 7.0 - 7.4
  • Microorganism (E. coli ATCC 23724): Good to Excellent
  • Microorganism (E. coli ATCC 33694): Good to Excellent
  • Microorganism (E. coli ATCC 33849): Good to Excellent
  • Microorganism (E. coli ATCC 39403): Good to Excellent
  • Microorganism (E. coli ATCC 47014): Good to Excellent
  • Microorganism (E. coli ATCC 53868): Good to Excellent
  • Yeast Extract: 24.0 g/L
  • Casein Peptone: 12.0 g/L
  • Potassium phosphate dibasic: 9.4 g/L
  • Potassium phosphate monobasic: 2.2 g/L
  • Direction (Preparation): Add 2 capsules to one liter of purified water until evenly dispersed. Add 4ml of Glycerol to the mixture. Boil for one minute with stirring to completely dissolve. Distribute and autoclave at 121°C for 15 minutes.

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

 

PR1MA LB Broth 20 Gram Buffered Capsules [Lennox L Broth]

Common Name: Lennox L Broth
Solubility: Water
Storage Temp: Room Temperature

Now available in convenient premeasured and pre-mixed capsules. Prebuffered media eliminates pH adjustments, dust and smells from the lab. Low Salt Formula. Molecular Biology Grade.

For propagation and maintenance of E.Coli:

  • Add 1 capsule per liter of water.
  • Heat and stir until capsule is completely dissolved.
  • Buffer is set for 7.2 at 20°C using a 10mM solution of TRIS/TRIS HCl
  • Sterilize by autoclaving for 15 minutes.

Ingredients:

  • Tryptone: 10 g/L
  • Yeast Extract: 5 g/L
  • Sodium Chloride: 5 g/L

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

  • Appearance: Capsules
  • Appearance of Solution: Prepared medium is yellow to gold and clear to moderately hazy
  • Microorganism (E. coli ATCC 23724): Good to Excellent
  • Microorganism (E. coli ATCC 33694): Good to Excellent
  • Microorganism (E. coli ATCC 33849): Fair to Excellent
  • Microorganism (E. coli ATCC 39403): Good to Excellent
  • Microorganism (E. coli ATCC 47014): Good to Excellent
  • Microorganism (E. coli ATCC 53868): Good to Excellent

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


PR1MA Nematode Growth Medium, Powder

 

Common Name: Nematode Growth Medium

Solubility: Water with Heat

Storage Temp: Room Temperature

 

A standard formulation for use in Nematode growth studies.

Contains:

Agar 17.5 g/l
Sodium Chloride 3.0 g/l
Peptone 2.5 g/l
Cholesterol 0.005 g/l
Shipping Dimensions: 3.50 x 3.75 x 3.50
Shipping Weight: 1.2 lbs

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

Specifications

  • Appearance: Light tan to pale yellow powder
  • Solubility: Clear Solution
  • pH (2.3% Solution @25 oC): Report
  • Agar: 17.5 g/l
  • Sodium Chloride: 3.0 g/l
  • Peptone: 2.5 g/l
  • Cholesterol: 0.005 g/l

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

Item#:
ASPRNGM

PR1MA SOB Broth, Powder

Solubility: Water
Storage Temp: Room Temperature

SOB Broth is recommended for use in cultivation of recombinant strains of E. Coli. It is a nutritionally rich growth medium for use in the preparation and transformation of competent cells.

Add 28 grams of Broth in 1 liter of distilled water. Heat gently to dissolve the medium completely. Dispense in tubes and sterilize by autoclaving for 15 minutes.

Ingredients:

  • Casein Enzymic Hydrolysate: 20 g/L
  • Magnesium Sulfate: 2.4 g/L
  • Yeast Extract: 5 g/L
  • Potassium Chloride: 0.186 g/L
  • Sodium Chloride: 0.5 g/L
  • Final pH(25°:C): 7.0+0.2
Research or further manufacturing use only, not for food or drug use.
  • DCM Appearance: Homogeneous Free Flowing,Light Beige
  • PPM Appearance: Clear, no to light ppt, light yellow
  • pH (2.8 % Solution @25 oC): 6.8 - 7.2
  • Microorganism (E. coli ATCC 23724): Good to Excellent
  • Microorganism (E. coli ATCC 33694): Good to Excellent
  • Microorganism (E. coli ATCC 33849): Good to Excellent
  • Microorganism (E. coli ATCC 39403): Good to Excellent
  • Microorganism (E. coli ATCC 47014): Good to Excellent
  • Microorganism (E. coli ATCC 53868): Good to Excellent

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 Miller's LB Agar Capsules

Common Name: Miller's LB Agar
Solubility: Water with Heat
Storage Temp: Room Temperature

Super convenient. Eliminate messy weighing. Consistent and accurate measurement. Convenient premeasured and pre-mixed capsules. Prebuffered media eliminates pH adjustments.

Simply add 40 capsules to one liter of water, sterilize by autoclaving for 15 minutes at 121°C. Capsules contain all necessary ingredients for maintenance and propagation of E. Coli.

Ingredients
  • Casein Digest Peptone: 10 g / L
  • Yeast Extract: 5 g / L
  • Sodium Chloride: 10 g / L
  • Agar: 15 g / L
  • TRIS/TRIS HCl: 1.5 g / L 

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

Item#:
ASPR1MAMILLERLBAGAR
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