S2K Commerce - Products Dropdown
S2K Commerce - Shopping Cart
S2K Commerce - Order Entry
PR1MA
High‑Quality Lab Consumables, Chemicals, Equipment, and Instruments
PR1MA™ is MIDSCI’s exclusive laboratory brand, developed to deliver dependable performance, consistent quality, and competitive value for modern research labs. Designed with scientists in mind, PR1MA™ products span lab consumables, molecular biology reagents, and essential benchtop equipment, all manufactured to stringent quality standards and supported by the expert service MIDSCI™ is known for. Researchers across academia, biotech, pharma, and clinical labs trust PR1MA™ for reliable results without unnecessary complexity or cost.
From pipette tips, PCR tubes, and microplates to PCR master mixes, protein markers, and mini centrifuges, every PR1MA™ product is selected for accuracy, usability, and purity. Many items are RNase/DNase‑free, sterile, and non‑pyrogenic, helping protect sample integrity in critical workflows like PCR, electrophoresis, and cell culture.
Need Help Selecting the Right PR1MA™ Products?
Contact us! Our trusted Lab Consultants are ready to help.
Sign up for our newsletter to hear about upcoming promotions, limited-time offers, and special savings opportunities.
PR1MA™ Potassium Phosphate, Dibasic
CAS Number: 7758-11-4
Molecular Weight: 174.2
Chemical Formula: K2HPO4
Solubility: Water
Storage Temp: Room Temperature
Research or further manufacturing use only, not for food or drug use.
- Appearance: White Powder
- Aerobic Plate Count: ≤ 1000 CFU/g
- Assay: ≥ 98.0 %
- Chloride (Cl): ≤ 0.003 %
- Heavy Metals : ≤ 5 ppm
- Insoluble Matter: ≤ 0.01 %
- Iron: ≤ 0.001 %
- Loss on Drying: ≤ 1.0 %
- Nitrogen Compound: ≤ 0.001 %
- pH (5% Solution): 8.5 - 9.6
- Sodium (Na): ≤ 0.05 %
- Sulfate: ≤ 0.005 %
- Total Coliforms: Negative
- Yeast and Mold Count: ≤ 100 CFU/g
Potassium, Phosphate, Dibasic,PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
PR1MA™ Tryptone, Powder
CAS Number: 91079-40-2
Solubility: Water
Storage Temp: Room Temperature
Pancreatic digest of casein used to supplement media in cultivation of
anaerobic bacteria.
pH (1% solution): 7.3.
Ingredients:
- Molecular Biology GradeTotal Nitrogen (TN): ~12.7%
- Amino Nitrogen (AN): ~3.7%
- AN/TN Ratio: 0.26
- Sodium Chloride: ~0.4%
- Tryptophan: ~1.0
Research or further manufacturing use only, not for food or drug use.
- Appearance: Cream to beige free flowing powder
- Amino Nitrogen: ≥ 4.0 %
- Ash: ≤ 15 %
- Loss on Drying: ≤ 5.0 %
- Nitrites: Negative
- pH (2% water) @25°C: 6.5 - 7.5
- Total Nitrogen: ≥ 10 %
- Undigested Protein: Negative
- Broth Formulations (Growth Supporting Properties): Satisfactory
- Peptone Agar (Growth Supporting Properties): Satisfactory
- Proteoses: Positive
- Salmonella: Negative/25g
- Standard Plate Count : ≤ 1000 cfu/g
- Coliform: Negative
- E.Coli: Negative
- Molds and Yeasts: ≤ 100 cfu/g
- Raw Material Species: Bovine
- Enzyme Species: Porcine
- BSE/TSE Free: BSE/TSE Free
- Country of Origin : Report
Tryptone, Powder, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
PR1MA™ Peptone, Granulated
CAS Number: 73049-73-7
Solubility: Water
Storage Temp: Room Temperature
Mixtures of peptides and free amino acids from peptic digest of animal tissue.
- Amino Nitrogen (AN): 2.5-3.5%
- Loss on Drying: <6.0%
Research or further manufacturing use only, not for food or drug use.
- Appearance: Light Beige Granular Powder
- Amino Nitrogen Content: ≥ 3.4 %
- Appearance of Solution: Clear and yellow-beige
- Ash: ≤ 15.0 %
- Loss on Drying: ≤ 5.0 %
- pH (2.0% Solution @ 25 oC): 6.5 - 7.5
- Total Nitrogen Content: ≥ 10.0 %
Peptone, Granulated, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
PR1MA™ Ticarcillin Disodium Salt
CAS Number: 4697-14-7
Molecular Weight: 428.39
Chemical Formula: C15H14N2Na2O 6S2
Solubility: Water
Storage Temp: 2-8°C
Inhibits bacterial cell wall synthesis. Highly active against gram negative
bacteria such as Agrobacterium strains. -Lactamase inhibitor. Hygroscopic.
Research or further manufacturing use only, not for food or drug use.
- Appearance: White to yellow crystalline powder
- Assay (Ticarcillin Content, dried basis): ≥ 80.0 %
- Assay (Ticarcillin, dried basis): ≥ 800 µg/mg
- Heavy Metals : ≤ 10 ppm
- Identification: Pass Test
- pH: 6.0 - 8.0
- Related Substances (Largest Impurity): ≤ 4.0 %
- Related Substances (Second Major Impurity) : ≤ 2.5 %
- Residual Solvents: Meets the requirements
- Specific Rotation: +172 - +187 °
- Sterility: Meet the requirements
- Water: ≤ 6.0 %
- Bacterial Endotoxins : ≤ 0.05 EU/mg
- Grade: Conforms to USP Specifications
Ticarcillin, Disodium, Salt, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
PR1MA™ Rapid Coomassie Stain
- Appearance: Dark Blue Color
- Concentration: 20X
- Solubility: Suitable for use in staining protein in polyacrylamide gels
Proudly made in the USA! Click here for more made in America products!
Rapid, Commassie, Stain, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
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
Proudly made in the USA! Click here for more made in America products!
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.
Proudly made in the USA! Click here for more made in America products!
PR1MA™ Malt Extract Agar, Powder
CAS Number: 8002-48-0
Solubility: Water with Heat
Storage Temp: Room Temperature
Malt Extract Agar is used for the isolation, cultivation, and maintenance of
yeasts and molds. Formulation is similar to Malt Extract Broth with the
addition of agar and glycerol. This broth medium was recommended by Thom
and Church for the cultivation of fungi. Its low acidity inhibits the
growth of most bacteria. The high carbohydrate content enhances the rapid
growth of fungi and yeasts.
Dissolve 33.6 grams in 1 liter of distilled water. Sterilize by autoclaving
for 15 minutes.
Ingredients:
- Maltose: 12.75 g/L
- Dextrin: 2.75 g/L
- Glycerol: 2.35 g/L
- Peptone: 0.78 g/L
- Agar: 15.0 g/L
- Final pH (25°C): 4.6 ± 0.2
Research or further manufacturing use only, not for food or drug use.
- DCM Appearance: Homogeneous with soft lumps, free flowing, light beige
- PPM Appearance: Trace to moderate haze, off white to pale yellow
- pH(3.36% Solution @ 25 oC: 4.5 - 4.9
- Microorganism (Aspergillus niger ATCC 16404): Growth
- Microorganism (Candida albicans ATCC 10231): Growth
- Microorganism (Penicillium Roquefortii ATCC 10110): Growth
- Microorganism (Saccharomyces cerevisiae ATCC 9763): Growth
- Microorganisms (Microsporum Audouinii ATCC 42558): Growth
- Microorganisms (Microsporum Canis ATCC 36299): Growth
- Microorganism (Trichophyton Mentagrophytes ATCC 9533): Growth
Proudly made in the USA! Click here for more made in America products!
Malt, Extract, Agar, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
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
Proudly made in the USA! Click here for more made in America products!
Phleomycin, 20mg/ml, Solution, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
PR1MA™ Freezer Box Promo!
For a limited time, enjoy discounted pricing on select PR1MA™ Cardboard Freezer Boxes!
(SB2CC-81, SB2CC-100)
Offer is valid until 12/31/2026 or while supplies last. Not valid on previous purchases.
Special price applies only to the items specified. Other capacities or items cannot be substituted.
All terms and conditions apply.
PR1MA™ Cardboard Freezer Boxes and Inserts
PR1MA™ Cardboard Freezer Boxes and Inserts provide reliable, organized storage for samples in both upright and chest freezer racks. Designed for laboratory environments, these freezer boxes deliver durability and performance across a wide temperature range, making them suitable for long-term biostorage and cryogenic applications.
Constructed to withstand temperatures from -196ºC to 121ºC, PR1MA™ freezer boxes are ideal for use in ultra-low temperature freezers, liquid nitrogen vapor phases, and standard laboratory freezers. Each box features drain holes on the bottom to prevent moisture buildup and a dedicated writing area on the lid for clear sample identification and inventory control.
The boxes follow the standard 5.25 x 5.25 x 2-inch footprint, ensuring compatibility with most freezer racks. Additional 3-inch and 4-inch height options are also available to accommodate varying tube lengths and storage needs. A wide range of cell divider configurations, from 16 to 144 cells, allows laboratories to customize storage for different tube sizes and sample quantities.
Main Attributes
- Compatible with upright and chest freezer racks
- Wide temperature range: -196ºC to 121ºC
- Drain holes to minimize condensation buildup
- Writable lid area for easy labeling and organization
- Standard 5.25 x 5.25 In. footprint
- Available in 2, 3, and 4 inch heights
- Multiple cell divider options: 16, 25, 36, 49, 64, 81, 100, or 144
PR1MA™ Cardboard Freezer Boxes and Inserts offer a practical, space-efficient solution for secure sample storage, helping laboratories maintain organization, traceability, and workflow efficiency.
Need Freezer Racks too? Check out our Freezer Rack Configurator to find the perfect rack for your lab.
PR1MA™ 2XYT Broth, Capsules
CAS Number: 91079-40-2; 8013-01-2; 7647-14-5
Solubility: Water
Storage Temp: Room Temperature
Nutritionally enriched medium for the growth of recombinant strains of E.
Coli and in the preparation and transformation of competent cells.
2XYT Broth packaged in convenient ready to use capsules. Each capsule
contains 15.5 g 2XYT Broth.
Simply add 2 capsules to one liter distilled water and heat until
completely dissolved. Sterilize by autoclaving at 121°C for 15 minutes.
Final pH at 25°C: 6.8-7.2.
Ingredients:
- Digest Peptone: 16 g/l
- Yeast Extract: 10 g/l
- Sodium Chloride:5 g/l
Research or further manufacturing use only, not for food or drug use.
- Appearance: Capsule (Cream to beige free flowing powder)
- DCM Appearance: Capsule (Homogeneous, free flowing, beige)
- PPM Appearance: Capsule (Clear, no to light ppt, yellow)
- pH (3.1 % 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
- Casein Peptone: 16.0 g/L
- Yeast Extract: 10.0 g/L
- Sodium Chloride: 5.0 g/l
- Description: Add 2 capsules 2XYT broth in 1 liter purified water until evenly dispersed. Boil for 1 minute with stirring to completely dissolve. Distribute and autoclave at 121oC for 15 minutes.
Proudly made in the USA! Click here for more made in America products!
2XYT Broth, Capsules, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
PR1MA™ 2XYT Broth, Powder
CAS Number: 91079-40-2; 8013-01-2; 7647-14-5
Solubility: Water
Storage Temp: Room Temperature
Nutritionally enriched medium for the growth of recombinant strains of E.
Coli and in the preparation and transformation of competent cells.
Dissolve 31g in one liter distilled water. Heat solution to boiling with
continuous stirring. Sterilize by autoclaving at 121°C for 15 minutes.
Final ph @ 25°C: 6.8-7.2.
Ingredients:
- Digest Peptone: 16 g/l
- Yeast Extract: 10 g/l
- Sodium Chloride: 5 g/l
Research or further manufacturing use only, not for food or drug use.
- Appearance: Cream to beige free flowing powder
- DCM Appearance: Homogeneous free flowing, beige
- PPM Appearance: Clear,no to light ppt,yellow
- pH (3.1 % 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!
2XYT, Broth, Powder, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities
Web Content Viewer