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Chemicals
MIDSCI™ is Your Trusted Source for High-Quality Lab Chemicals and Reagents
Looking for reliable chemicals to power your research? MIDSCI™ delivers a full range of high-purity reagents, solvents, and buffers designed for life science, pharmaceutical, microbiology, and organic chemistry workflows. From essential acids and bases to specialized biochemicals, growth media, and DNA kits, our inventory ensures precision, consistency, and compliance, backed by Certificates of Analysis (COAs) and Safety Data Sheets (SDS).
Explore PR1MA™ Chemicals, our premium line of USP- and ACS-grade chemicals
Perfect for molecular biology, plant science, and cellular research, PR1MA™ products offer full traceability and documentation for your peace of mind.
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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
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
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
PR1MA™ Temed
Common Name: N,N,N',N'-Tetramethylethylenediamine
CAS Number: 110-18-9
Molecular Weight: 116.2
Chemical Formula: C6H16N2
Solubility: Water
Storage Temp: Room Temperature
Tertiary amine used to catalyze formation of free radicals from ammonium persulfate and riboflavin. Suitable for electrophoresis and tested as a catalyst for polyacrylamide gel electrophoresis.
Shipping Weight: 0.4 lbs
Shipping Dimensions: 2.00 x 4.50 x 2.00
Research or further manufacturing use only, not for food or drug use.
- Appearance: Clear, Colorless Solution
- Identification: Conforms
- Purity (GC): ≥ 97 %
- BSE/TSE Free: BSE/TSE Free
- Country of Origin: Report
PR1MA™ X-GAL [5-Bromo-4-chloro-3-indolyl-β-D-galactoside]
Common Name: 5-Bromo-4-chloro-3-indolyl-β-D-galactoside
CAS Number: 7240-90-6
Molecular Weight: 408.6
Chemical Formula: C14H15BrCINO6
Solubility: DMSO and DMF
Storage Temp: -20°C
Chromogenic substrate of β-Galactosidase used in combination with IPTG for
detection of β-Galactosidase activity in bacterial colonies. X-GAL is
cleaved at the B1-4 bond between galactose and the
5-Bromo-4-chloro-3-indolyl portion of X-GAL by β-Galactosidase via
hydrolysis. The cleavage of X-GAL results in the production of a water
insoluble blue dichloro-dibromo-indigo precipitate. In cloning strategies
with vectors such as Lambda-11, M13mp18 and 19, pUC18 and 19, pUR222 the E.
coli lacZ gene is transformed to lac+ cells. After transformation the cells
show β-Galactosidase activity in the presence of media containing X-GAL and
IPTG. The insertion of a DNA fragment into the cloning sites of the lacZ
gene results in the disruption of β-Galactosidase activity leading to the
appearance of white colonies. Non-recombinant cells produce a blue indigo
dye.
Water Content: 0.05% (K. Fisher)
Protect from light and moisture
Research or further manufacturing use only, not for food or drug use.
- Appearance: White Powder
- Identity: Conforms to structure
- Purity (HPLC): ≥ 98.0 %
- Solubility (2%, DMF): Clear and Colorless Solution
- Specific Rotation: -63.0 - -60.0 °
- Water Content (K.F): ≤ 0.5 %
PR1MA™ Sodium Carbonate Anhydrous, ACS Grade
Common Name: Soda Ash
CAS Number: 497-19-8
Molecular Weight: 105.99
Chemical Formula: Na2CO3
Solubility: Water
Storage Temp: Room Temperature
Research or further manufacturing use only, not for food or drug use.
- Appearance: Fine White Granular Powder
- Calcium (Ca): ≤ 0.03 %
- Chloride (Cl): ≤ 0.001 %
- Heavy Metals: ≤ 0.0005 %
- Insolubles: ≤ 0.01 %
- Iron: ≤ 0.0005 %
- Loss On Heating: ≤ 1.0 %
- Magnesium (Mg): ≤ 0.005 %
- Phosphate: ≤ 0.001 %
- Potassium (K): ≤ 0.005 %
- Purity: ≥ 99.5 %
- Silica: ≤ 0.005 %
- Sulfur Compound: ≤ 0.003 %
PR1MA™
p-Amino Benzoic Acid [Vitamin H1]
Common Name: Vitamin H1
CAS Number: 150-13-0
Molecular Weight: 137.1
Chemical Formula: C7H7NO2
Solubility: Water
Storage Temp: Room Temperature
Research or further manufacturing use only, not for food or drug use.
- Appearance: White crystalline powder
- Assay: ≥ 98.5 %
- Loss on Drying: ≤ 0.20 %
- Melting Point: 184 - 191 oC
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