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.

|◀ 241 - 252 of 319 ▶|
View:

PR1MA Potassium Acetate

CAS Number: 127-08-2
Molecular Weight: 98.14
Chemical Formula: C2H3O2K
Solubility: Water
Storage Temp: Room Temperature

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

  • Appearance: White crystalline powder
  • Calcium (Ca):  0.005 %
  • Chloride (Cl):  0.003 %
  • Heavy Metals :  5 ppm
  • Insolubles:  0.005 %
  • Iron:  5 ppm
  • Magnesium (Mg):  0.002 %
  • pH (5% in water): 6.5 - 9.0
  • Phosphate:  0.001 %
  • Purity:  99.0 %
  • Sodium (Na):  0.03 %
  • Sulfate:  0.002 %
  • Country of Origin: Report

  


PR1MA  Rifampicin

CAS Number: 13292-46-1
Molecular Weight: 823.0
Chemical Formula: C43H58N4O12
Solubility: Dilute acid solutions
Storage Temp: 2-8°C

Interferes with synthesis of nucleic acids by inhibiting DNA dependent RNA polymerase. Active against gram positive bacteria. Less active against gram negative bacteria. Plant cell culture tested.

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

  • Appearance: Brownish-Red Crystalline Powder
  • Crystallinity: Pass Test
  • Heavy Metals :  20 ppm
  • Identification: Pass Test
  • Loss on Drying:  1.0 %
  • pH: 4.5 - 6.5
  • Purity: 97.0 - 102.0 %
  • Rifampicine Quinone:  1.5 %
  • Solubility: Pass
  • Sulfated Ash:  0.1 %

  


PR1MA Acrylamide/bis-Acrylamide, Premixed Powder 29:1 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: White Powder
  • Conductivity of Solution: ≤ 10.0 µmhos
  • Electrophoresis: Pass Test
  • Solubility: Pass Test

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

[NTC] [clonNAT] [Streptothricin Sulfate]

PR1MA Nourseothricin Sulfate [NTC] [clonNAT] [Streptothricin Sulfate]

Common Name: [NTC] [clonNAT] [Streptothricin Sulfate]
CAS Number: 96736-11-7
Solubility: Water
Storage Temp: 2-8°C

Dihydrogen sulfate form of the weekly basic antibiotic Nourseothricin consisting of components F, E and D. Effective against gram negative and gram positive bacteria. Also effective against mycobacteria, mycoplasms, protozoa, yeasts, viruses and plants. Commonly used as a selection agent for recombinant yeast strains.

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

  • Appearance: White Powder
  • Carbon (C): Report %
  • Hydrogen (H): Report %
  • Nitrogen (N): Report %
  • Purity (HPLC):  85 %
  • Sulfur (S): Report %

  

PR1MA bis-TRIS [bis-(2-hydroxyethyl)aminotris(hydroxymethyl)methane]

Common Name: bis(2-Hydroxyethyl)aminotris (hydroxymethyl)methane
CAS Number: 6976-37-0
Molecular Weight: 209.2
Chemical Formula: C8H19NO5
Solubility: Water
Storage Temp: Room Temperature

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

  • Appearance: White crystalline powder
  • Assay:  99.0 %
  • Identification (IR): Matches reference
  • Melting Point: Report oC
  • pH, 1.0M Aqueous solution @25ºC: 9.5 - 11.0
  • pKa @ 20°C: 6.0 - 7.0
  • Solubility: Complete and clear
  • UV Absorbance @280nm, 1.0 M in H2O:  0.40
 

  


PR1MA Acrylamide/bis-Acrylamide, Premixed Powder 37.5:1 Ratio

CAS Number: 79-06-1, 110-26-9
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: White powder
  • Conductivity of Solution:  10 µmhos
  • Electrophoresis: Pass Test
  • Solubility: Pass Test

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



PR1MA
  Colistin Sulfate

CAS Number: 1264-72-8
Molecular Weight: 2801.27
Chemical Formula: (C52H98N16O13 )2  5(H2SO4)
Solubility: Water
Storage Temp: Short Term: 2-8°C; Long Term: -20°C

Active against gram negative bacteria. Potency approximately 20,000 units per milligram.

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

  • Appearance: White or almost white powder
  • Arsenic (As):  2 ppm
  • Heavy Metals : ≤ 20 ppm
  • Identification: Conforms
  • Loss on Drying:  3.5 %
  • pH (1% in H2O): 4.0 - 6.0
  • Potency (Dried basis):  19000 µg/mg
  • Solubility (50mg/ml in H2O): Clear and light yellow solution
  • Specific Rotation: -73 - -63 °
  • Sulfate: 16.0 - 18.0 %
  • Sulfated Ash:  1.0 %



PR1MA Agar Noble, Powder

CAS Number: 9002-18-0
Solubility: Water with Heat
Storage Temp: Room Temperature

Ultra-high purity Agar recommended for use in applications where maximum clarity and purity are essential. Thorough bleaching and washing procedures are utilized to remove trace amounts of ash and mineral contaminants.

Concentrations of 3-8 g/L obtains a semi-solid gel.

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

  • Appearance: White to pale yellow crystalline powder
  • ASH (Residue Ignition):  1.6 %
  • Gelling Point: 32 - 39 °C
  • Melting Point: 80 - 95 oC
  • Moisture :  12.0 %
  • pH (1.5% solution): 5.5 - 7.2

  


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  Spectinomycin Dihydrochloride Pentahydrate

CAS Number: 22189-32-8
Molecular Weight: 495.3
Chemical Formula: C14H24N2O7  2HCl  5H2O
Solubility: Water
Storage Temp: 2-8°C

Aminocyclitol antibiotic that inhibits protein synthesis. Cell culture tested.

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

  • Appearance: White or almost white, Slightly hygroscopic powder
  • Identification: Pass Test
  • pH @25 °C: 3.8 - 5.6
  • Potency :  603 IU/mg
  • Residue after Ignition:  1.0 %
  • Solubility: Clear and colorless to light yellow
  • Specific Rotation: +15 - +21 °
  • Water (KF): 16.0 - 20.0 %

  

PR1MA Mitomycin C

CAS Number: 50-07-7
Molecular Weight: 334.3
Chemical Formula: C15H18N4O5
Solubility: Ethanol
Storage Temp: 2-8°C
 

Antineoplastic antibiotic that acts as an alkylating agent after activation and also suppresses the synthesis of nucleic acids. A cell-cylce non specific agent, most active in the late G1 and early S phases.

WARNING! This product can expose you to Mitomycin-C, a chemical which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

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

  • Appearance: Blue violet solid
  • Identification (UV): Conforms
  • Purity-HPLC (RP CH3CN:H2O-0-100%):  99.0 %
  • Purity-HPLC (RP MEOH:H2O-90-10):  98.0 %
  • Purity-TLC (CH2CL2:MEOH- 9:1):  98.0 %
  • Solubility (10 mg/ml MEOH): Clear Blue Solution

  

[N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]

PR1MA  HEPES, Free Acid [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]

Common Name: [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]
CAS Number: 7365-45-9
Molecular Weight: 238.3
Chemical Formula: C8H18N2O4S
Solubility: Water
Storage Temp: Room Temperature

Zwitterionic N-substituted aminosulfonic acid buffer.

  • pka (25°C): 7.5
  • pH Range (Working): 6.8 - 8.2
  • Heavy Metals: <0.001% Max
Research or further manufacturing use only, not for food or drug use.
  • Appearance: White Crystalline Powder
  • Assay (Titration, dried basis):  99.5 %
  • DNase, RNase, protease: Not Detected
  • Endotoxin (0.2% Solution):  0.25 EU/ml
  • Heavy Metals (as Pb):  0.001 %
  • Identification (IR): Pass
  • Iron (Fe):  0.0005 %
  • Loss on Drying:  1.0 %
  • pH (5% in water): 5.0 - 6.5
  • pKa @ 20°C: 7.35 - 7.70
  • Residue on Ignition:  0.1 %
  • Solubility (1M Solution in Water ): Clear and Colorless Solution
  • Sulfate:  0.05 %
  • UV Absorbance (1M@260nm):  0.05
  • UV Absorbance (1M@280nm):  0.05
  

|◀ 241 - 252 of 319 ▶|
View: