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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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Limited Time Promo!


Valentine’s Day Bundles!


For a limited time, buy 1 PR1MA™ MC-24 Touch High Speed Microcentrifuge (MC24)

and get 1 PINK PR1MA™ 8 Mini Microcentrifuge FREE (MF8-PK-VF)!

 

That’s $346 in Savings!

Add MC24 at listed price, and one MF8-PK-VF to your cart for FREE product.

Use Promo Code: MYFUGEFREE

 

Click here for more Valentine’s Day Deals.

Free offer with purchase of designated items at listed price. Cannot be combined with other discounts or pricing.

Not valid on prior purchases. Promo valid until 02/20/2026 or while supplies last.

All terms and conditions apply.


PR1MA™ MC-24 Touch High-Speed Microcentrifuge

The PR1MA™ MC-24 Touch is the first microcentrifuge in its class to feature touchscreen control. In addition to the next-generation control panel, the centrifuge also offers high speed (up to 13,500 rpm / 16,800 xg) and a unique COMBI-Rotor™ with lid that accepts both standard microtubes (1.5 / 2.0 mL) and PCR tubes/strips (0.2 mL), making this the perfect partner for any molecular biology laboratory.

The large, color touchscreen, shows the actual speed (in rpm or rcf) along with set and remaining time. Up to 9 speed/time profiles can be stored in memory and the home screen displays a “mySpin” icon for instant recalls a designated favorite profile.

Supplied with Benchmark’s unique COMBI-Rotor™, the MC-24 Touch will accept 24 × 1.5 / 2.0 mL tubes, 2 strips of 0.2 mL tubes (16 × 0.2 mL), and up to 12x spin column kits without requiring separate adapters. There is also an optional 8-place rotor for 5 mL and cryo tubes. Samples are kept cool, even during extended runs at the maximum speed setting by a proprietary air flow system that moves air evenly and quietly throughout the chamber.

The MC-24 Touch is cold room safe and carries a 2-year warranty.

  • Full-Color Touch Screen
  • mySpin™ 1 button program recall
  • COMBI-rotor accepts tubes and strips
  • Compact, only 9 x 12 x 7.75 In.
  • Variable speed control, set In rpm or rcf

The PR1MA™ MC-24 Touch High-Speed Microcentrifuge spins 24 1.5 / 2.0 mL tubes and 2 PCR strips simultaneously. 0.5 mL tube adapters (C1008-A5-6) are also available for purchase.

 

Item # MC24 is proudly made in the USA! Click here for more made in America products!
 

Item#:
ACAMMC24CENT
 
PR1MA MC24 Touch Microcentrifuge

PR1MA™ Distilled Water, Laboratory Reagent Grade

CAS Number: 7732-18-5
Molecular Weight: 18.02
Chemical Formula: H2O

Laboratory reagent grade. Purified by steam distillation for use as a research laboratory reagent. Not intended or sold for human consumption. 10 Liter size supplied in a Cubitainer with pouring spout.

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

  • Appearance: Clear Liquid
  • Alkalinity (Total as CaCO3): ≤ 20 ppm
  • Aluminum (Al): ≤ 0.2 ppm
  • Antimony (Sb): ≤ 0.006 ppm
  • Arsenic (As): ≤ 0.01 ppm
  • Barium (Ba): ≤ 2 ppm
  • Beryllium (Be): ≤ 0.004 ppm
  • Boron (B): ≤ 1 ppm
  • Bromate: ≤ 0.010 ppm
  • Bromide: ≤ 0.005 ppm
  • Cadmium (Cd): ≤ 0.005 ppm
  • Calcium (Ca): ≤ 2 ppm
  • Chloride (ASTM D5442): ≤ 50 ppb
  • Chromium (Cr): ≤ 0.10 ppm
  • Cobalt (Co): ≤ 0.15 ppm
  • Conductivity (ASTM D1125): ≤ 5.0 µS/cm
  • Copper (Cu): ≤ 1 ppm
  • E.Coli: ≤ 1 MPN/100ml
  • Fluoride : ≤ 4 ppm
  • Foaming Agents: ≤ 0.5 mg/l
  • Hardness (as CaCO3): ≤ 10 mg/l
  • Heterotrophic Bacteria (F1094): ≤ 100 cfu/10ml
  • Iron (Fe): ≤ 0.3 ppm
  • lead (Pb): ≤ 0.015 ppm
  • Magnesium (Mg): ≤ 0.10 ppm
  • Manganese (Mn): ≤ 0.05 ppm
  • Mercury (Hg): ≤ 0.002 ppm
  • Molybdenum (Mo): ≤ 0.15 ppm
  • Nickel (Ni) : ≤ 0.005 ppm
  • Nitrate as N: ≤ 10 ppm
  • pH (ASTM D1293): 5.0 - 7.0
  • Phosphorous (P): ≤ 1 ppm
  • Potassium (K) : ≤ 1 ppm
  • Resistivity (ASTM D1125): ≥ 0.2 megaohm
  • Scandium (SC): ≤ 0.15 ppm
  • Selenium (Se): ≤ 0.05 ppm
  • Silica (ASTM D4517) : No Limit ppb
  • Silver (Ag): ≤ 0.10 ppm
  • Sodium (ASTM 6071): ≤ 50 ppb
  • Standard Plate Count: ≤ 500 cfu/ml
  • Strontium (Sr): ≤ 0.15 ppm
  • sulfate: ≤ 250 ppm
  • Thallium (Tl): ≤ 0.002 ppm
  • Tin (sn): ≤ 0.15 ppm
  • Titanium (Ti): ≤ 0.15 ppm
  • TOC (ASTM 5997): No Limit ppm
  • Total Coliform: ≤ 1 MPN/100ml
  • Total Radium: 0.5835 - 1.491 pCi/l
  • Uranium (U): ≤ 0.030 ppm
  • Vanadium (V): ≤ 0.15 ppm
  • Zinc (Zn) : ≤ 5 ppm

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

Item#:
ASWATERDISTILL
 
Safety Data Sheet for PR1MA Distilled Water, Laboratory Reagent Grade

PR1MA™ Water, HPLC Grade

CAS Number: 7732-18-5
Molecular Weight: 18.0
Chemical Formula: H2O
Storage Temp: Room Temperature

Certified RNase and DNase free for use in molecular biology applications. Ideal for making reagents, rinsing glass and plastic ware, enzymatic reactions and more. Toxic agents such as DEPC are not used in purification procedures.

  • Endotoxin Free
  • RNase Free
  • DNase Free

*Tested to < 0.001 EU/ML

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

  • Appearance: Clear and Colorless Solution
  • TOC (ppb): ≤ 3 ppb
  • UV Absorbance (1 cm cell Vs Water) @ 190nm: ≤ 0.01
  • UV Absorbance (1 cm cell Vs Water) @ 200 nm: ≤ 0.010
  • UV Absorbance (1 cm cell Vs Water) @ 210 nm: ≤ 0.010
  • UV Absorbance (1 cm cell Vs Water) @ 250 nm: ≤ 0.005
  • UV Absorbance (1 cm cell Vs Water) @ 254 nm: ≤ 0.005
  • UV Absorbance (1 cm cell Vs Water) @ 280 nm: ≤ 0.005
  • Filtered through Ultrafiltration (0.01 Micron): Conforms
  • Country of Origin: USA

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

Item#:
ASEATERHPLC
 
Safety Data Sheet for PR1MA Water, HPLC Grade

PR1MA™  Water, Molecular Biology Grade, DNase and RNase Free

CAS Number: 7732-18-5
Molecular Weight: 18.0
Chemical Formula: H2O
Storage Temp: Room Temperature

Certified RNase and DNase free for use in molecular biology applications. Ideal for making reagents, rinsing glass and plastic ware, enzymatic reactions and more. Toxic agents such as DEPC are not used in purification procedures.

  • Endotoxin Free
  • RNase Free
  • DNase Free

*Tested to < 0.001 EU/ML

Meets or exceeds CAP/CLSI specifications for Clinical Laboratory Reagent Water (CLRW) and USP/NF Purified Water.

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

  • Appearance: Clear and Colorless Solution
  • Bioburden : No Growth
  • DNase: No Visible Degradation
  • Protease: No Visible Degradation
  • RNase: No Visible Degradation
  • Country of Origin: USA

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

Item#:
ASWATERMBG
 
Safety Data Sheet for PR1MA Water, Molecular Biology Grade

PR1MA™ TBE 10x Solution

Common Name: TRIS-borate-EDTA 10X Solution
CAS Number: 77-86-1; 10043-35-3; 6381-92-6; 7732-18-5
Solubility: Water
Storage Temp: Room Temperature

TBE is a common buffer used in gel electrophoresis.

Supplied as a 1X concentrated solution containing:

89mM Tris Base
89mM Boric Acid
2mM EDTA disodium salt
pH (1X solution @ 25°:C): 8.3+0.1
Shipping Weight: 2.6 lbs

Shipping Dimensions: 3.50 x 9.00 x 3.50
  • Appearance: Clear, Colorless Solution
  • pH (1X Solution): 8.15 - 8.45
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!

Item#:
ASTBE10XSOLUT
 
Safety Data Sheet KCT32020-1000_T32020

PR1MA™ Protein Gel-Loading Dye for SDS-PAGE

CAS Number: 7732-18-5; 56-81-5; 7647-01-0; 77-86-1; 151-21-3
Storage Temp: Room Temperature

This dye is added to protein samples prior to electrophoresis on SDS–PAGE gels.

Composition:

Water: 80%
Glycerol: <12%
Sodium Dodecyl Sulfate: <5%
Proprietary Component: <2%
TRIS: <1.0%
Shipping Weight: 0.1 lbs

Shipping Dimensions: 1.50 x 3.50 x 1.50
  • 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
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!

Item#:
ASPROTEINGELLDNSDS
 
PR1MA Safety Data Sheet KCP18100-5_P18100


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.
 

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

Item#:
ASDRYMLKPOW
 
Safety Data Sheet for PR1MA Dry Powder Milk


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

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

Item#:
ASPRDPBS1X
 
Safety Data Sheet for PR1MA DPBS 1X Solution

Benchmark™ BeadBath Duo™

The BeadBath Duo™ series are the first laboratory baths designed for precision temperature control when used with water, or with (the increasingly popular) Lab Armor® thermal beads. Unlike any other laboratory bath, they feature a "MODE" button that can be used to toggle between "Bead" or "Water" mode. Choosing the correct mode will automatically adjust the operation and balance of the multiple internal heating and sensing elements to ensure optimal performance. The result is one combination bath that is suitable for accurate, and uniform temperature control in either condition.

While most research laboratories today are using water baths, many prefer the convenience of bead baths due to the advantages listed below. With the BeadBath Duo™, the lab gets the best of both worlds, allowing conversion from one bath type to the other, with the simple press of a button. 

  • Two separate modes for BEADS AND WATER
  • Quik-Cal™, simple in-lab calibration function
  • Offers all of the advantages of a "Bead Bath"
  • Eliminates constant refills (Burn-out protection)
  • Easy (accessory free) securing of tubes and bottles
  • Allows angled incubations
  • Runs constant (no wait for heat-up)

Note: Beads are not included with these items. For beads for baths, find them here.

Specifications 

Item #B2410B2402
Temp Range (Water)Ambient 5° to 80°C
Temp Range (Bead)Ambient 5° to 70°C
Temp Accuracy0.2°C
Temp Uniformity (Water)± 0.2°C at 37°C
Temp Uniformity (Bead)± 0.9°C at 37°C
Temp Increments0.1°C1.0°C
Exterior Dims
(W x D x H)		10.8 x 16 x 12 In.
274.32 x 406.4 x 304.8 mm		6.5 x 8 x 6 In.
165.1 x 203.2 x 152.4 mm
Chamber Dims
(W x D x H)		9.5 x 11.8 x 6.1 In.
241.3 x 299.72 x 154.94 mm		5.5 x 6 x 4 In.
139.7 x 152.4 x 101.6 mm
Weight15 lbs. |6.8 kg.4.5 lbs. |2.0 kg.
Electrical115 V or 230 V | 50-60 Hz
Warranty2 Years 


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

Item#:
ASH2OBEADBTH

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 %

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

Item#:
ASUSROSE
 
Safety Data Sheet for PR1MA Sucrose


PR1MA™ Cryo Tubes

  • Ultra-pure polypropylene meets FDA 21 CFR 177.1520 & USP Class VI
  • High-contrast black 100 uL graduations are bold and easy to read
  • Large white writing area on all tubes
  • Optimized for vapor-phase liquid nitrogen storage
  • Note: not suitable for immersion in liquid nitrogen
  • Temperature range: -196°C to 121°C
  • HDPE cap has secure lip-seal feature so no O-ring is necessary
  • Maximize tube storage within racks, boxes, and canes
  • Sterile and certified free of detectable DNase, RNase, DNA, PCR inhibitors, and endotoxins

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

Item#:
ASPR1MACRYOTUBES

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 %

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

Item#:
ASCHLORIDESOD
 
Safety Data Sheet for PR1MA Sodium Chloride
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