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.

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Kappa is now PR1MA - Same great product, new name
Looking for something else? Email tech@midsci.com. If we can get it, we will add it to the website.

 

PR1MA Agarose, Low Melt Temperature

CAS Number: 9012-36-6
Solubility: Water
Storage Temp: Room Temperature

Ideal gelling properties for use in cloning assays or for recovery of heat labile samples following electrophoresis.

Gel Strength, 1%: >200 g/cm2
Gelling Temperature: 26-30°C
Melting Temperature: <65°C
Sulfate: <0.10%
EEO: <0.10
DNase and RNase: None Detected

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

  • Appearance: White to off white powder
  • DNase/ RNase: Not Detected
  • EEO:  0.10 -Mr
  • Gelling Temperature: 26 - 30 oC
  • Gel Strength :  200 g/cm2
  • Melting Temperature:  65 oC
  • Moisture Content:  10 %
  • Sulfate Content:  0.10 %

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


PR1MA Agarose 500 mg Tablets

CAS Number: 9012-36-6
Solubility: Water
Storage Temp: Room Temperature

Save time and labor preparing agarose gels for electrophoresis of nucleic acids. Just place the required number of tablets into a standard buffer, then mix and heat until completely dissolved.

Tablet Weight Range: 485-515 mg
Gel Strength, 1.5%: >1200 g/cm2
Gelling Range: 36-39°C
Melting Temp: 87-89°C
EEO: <0.10
Sulfate: <0.15
DNase, RNase: None Detected

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

  • Appearance: White tablets
  • Gelling Range (1.5% Water): 36 - 39 oC
  • pH (3% water, 25°C): 5.7 - 7.7
  • Tablet Weight: 485 - 515 mg

  

PR1MA Calcium Chloride Anhydrous

CAS Number: 10043-52-4
Molecular Weight: 110.98
Chemical Formula: CaCl2
Solubility: Water
Storage Temp: Room Temperature

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

  • Appearance: White crystalline powder
  • Assay (Titration):  96.0 %
  • Titratable Base:  0.006 meq/g

 


PR1MA Bromophenol Blue [3',3",5',5"-Tetrabromo-phenolsulfonphthalein]

Common Name: 3',3",5',5"-Tetrabromo-phenolsulfonphthalein
CAS Number: 115-39-9
Molecular Weight: 669.96
Chemical Formula: C19H10Br4O5S
Solubility: Methanol, ethanol
Storage Temp: Room Temperature

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

  • Appearance: Pink to Red Crystalline Powder
  • Clarity of Solution: Pass
  • Visual Transition Interval (pH 3.0 - 4.6): Pass

  

PR1MA  Paromomycin Sulfate

CAS Number: 1263-89-4
Molecular Weight: 615.6
Chemical Formula: C23H45N5O14  H2SO4
Solubility: Water
Storage Temp: Room Temperature

Aminoglycoside antibiotic with mode of action similar to Kanamycin and Neomycin. Used as a selective agent for the incorporation of the NPT II (APH3') gene in plant tissue. Plant culture tested.

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

  • Appearance: White to Off White Powder
  • Assay: ≥ 675 U/mg
  • Identification: Conforms
  • Loss on Drying:  5.0 %
  • pH 3.0% Solution @25oC: 5.0 -7.5
  • Specific Optical Rotation: +50.0 - +55.0°

  


PR1MA  Bacitracin

CAS Number: 1405-87-4
Molecular Weight: 1422.69
Chemical Formula: C66H103N17O16 S
Solubility: Water, Ethanol, and Methanol
Storage Temp: 2-8°C

Interferes with bacterial cell wall synthesis. Active against gram positive bacteria. Toxic to plant cells.

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

  • Appearance: White to pale buff powder
  • Identification: Pass test
  • pH: 5.5 - 7.5
  • Loss on Drying:  5.0 %
  • Residue on Ignition:  0.5 %
  • Bacitracin A:  40.0 %
  • SUM of bacitracin A, B1, B2 and B3:  70.0 %
  • Limit of early eluting peptides:  20.0 %
  • Limit of Bacitracin F:  6.0 %
  • Microbial Assay (Dried Basis):  65.0 IU / mg
  • Heavy Metals :  30 ppm
  • Total Viable Aerobic Count:  100 CFU/g
  • Particle Size (< 20 µm by volume):  99.0 %
  • Crystallinity : Pass
  • Appearance of Solution: Clear, colorless to slight hazy yellow
  • Source: Bacillus Licheniformis
  • Non Animal Origin: Non Animal Origin
  • Grade: USP
  • Country of Origin : Report

  

PR1MA  Polymixin B Sulfate

CAS Number: 1405-20-5
Molecular Weight: 1385.61
Chemical Formula: C55H96N16O13  2H2SO4
Solubility: Water
Storage Temp: 2-8°C

Mixture of sulfates of polypeptides from certain strains of Bacillus polymixa. Active against gram negative bacteria.

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

  • Appearance: White to Light Yellow Powder
  • Identification: Pass Test
  • pH (0.5% Solution): 5.0 - 7.5
  • Loss on Drying:  7.0 %
  • Single Impurity:  3.0 %
  • Total impurities:  17.0 %
  • Bacteria Colonies:  10/g
  • Ecoli Colonies: Should not be found
  • Fungi and Yeast colonies:  10/g
  • Assay, HPLC (on dried basis) (Sum of polymxin B1,B2, B3 and B1-1):  80.0 %
  • Assay, HPLC (on dried basis) (Polymyxin B3):  6.0 %
  • Assay, HPLC (on dried basis) (Polymyxin B1-1):  15.0 %
  • Assay (Dried Basis):  6000 U/mg
  • Assay (Wet Basis): Report U/mg
  • Non Animal Origin: Non Animal Origin
  • Grade: USP
  • Country of Origin: Report

  


PR1MA DTT [DL-Dithiothreitol] (Cleland's Reagent)]

Common Name: [DL-Dithiothreitol] (Cleland's Reagent)]
CAS Number: 3483-12-3
Molecular Weight: 154.25
Chemical Formula: C4H10O2S2
Solubility: Water
Storage Temp: 2-8°C

Protective reagent for maintaining -SH groups in reduced state. DTT permeates the cell membrane, protecting protein sulfhydryls, thereby restoring enzyme activity lost by oxidation of the groups.

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

  • Appearance: A white free flowing powder, hygroscopic
  • Solubility: Freely soluble in methanol, methylene chloride
  • Clarity in water: 5% (w/v) solution in water is clear and colorless
  • Identification by TLC: Rf value of the sample is comparable with that of the standard
  • Melting Range: 37.0 - 44.0 °C
  • Related Substance (UV Spectroscopy- Content of Oxidised DTT): 0.4 %
  • Assay (By Iodimetry):  98.0 %
  • Country of Origin: Report

  

PR1MA Puromycin Dihydrochloride

CAS Number: 58-58-2
Molecular Weight: 544.43
Chemical Formula: C22H29N7O5 
 2HCl
Solubility: Water
Storage Temp: -20°C

Amino nucleoside antibiotic allows the selection of cells expressing the pac gene. Inhibits the growth of gram-positive bacteria and various animal and insect cells.

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

  • Appearance: White to Off White Powder
  • Identification (TLC): Conforms
  • Melting Point: 168 - 182 oC
  • Purity (HPLC):  98.0 %
  • Solubility: Clear, colorless or light yellow solution
  • Water (KF):  12.0 %

  

PR1MA  Blasticidin S Hydrochloride Powder

CAS Number: 3513-03-9
Molecular Weight: 458.9
Chemical Formula: C17H26N8O5  HCl
Solubility: Water
Storage Temp: -20°C

A peptidyl nucleoside antibiotic isolated from the culture broth of Streptomyces griseogenes, inhibits protein synthesis in both prokaryotes and eukaryotes.
 
Research or further manufacturing use only, not for food or drug use.
  • Appearance: White Powder
  • Endotoxin :  1.0 EU / mg
  • Identification: Pass Test
  • Potency:  850 ug / mg
  • Purity (HPLC):  98.0 %
  • Solubility: Clear, Slightly yellow solution at 5 mg / mL in water

  

[3',3",5',5"-Tetrabromo-phenolsulfonephthalein]


PR1MA Ammonium Acetate

CAS Number: 631-61-8
Molecular Weight: 77.08
Chemical Formula: C2H7NO2
Solubility: Water
Storage Temp: 2-8°C

Widely used reagent in molecular biology and chromatography.

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

  • Appearance: White crystalline hygroscopic powder
  • Assay:  97.0 %
  • Chloride (Cl):  0.0005 %
  • Heavy Metals (as Pb):  0.0005 %
  • Insoluble Matter:  0.005 %
  • Iron (Fe):  0.0005 %
  • Nitrate:  0.001 %
  • pH, 5% solution in H2O @25 ºC: 6.7 - 7.3
  • Residue after Ignition:  0.01 %
  • Sulfate:  0.001 %
  


PR1MA Acrylamide

CAS Number: 79-06-1
Molecular Weight: 71.1
Chemical Formula: C3H5NO
Solubility: Water
Storage Temp: Room Temperature

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 Crystalline Powder
  • Acrylic Acid :  10 ppm
  • Assay:  99.9 %
  • Conductivity:  3.5 µmhos
  • DNase, RNase, protease: Not Detected
  • Electrophoresis: Pass Test
  • Iron:  1 ppm
  • Lead:  1 ppm
  • Magnesium:  1 ppm
  • Melting Point: 84.0 - 86.0 oC
  • pH (10%, 0.1 M NaCl @ 25 oC) : 6.5 - 7.5
  • Solubility (40% Aqueous Solution): Clear and colorless

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