Chemicals

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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).

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PR1MA
 Agarose SS, Super High Strength, Molecular Biology Grade

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

For DNA/RNA fragments >1000 bp. Ideal for separating larger molecules. DNAse/RNase free.

Gel Strength, 1%: >1800 g/cm2
Gel Strength, 1.5%: >3200 g/cm2
Gelling Temperature: 35-37°C
Melting Temperature: 87-89°C
Sulfate: <0.12%
EEO: <0.13%

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

  • Appearance: Fine white homogeneous powder
  • DNase/ RNase: Not Detected
  • Gelling Temperature:  10 oC
  • Melting Point: 80 - 100 oC

Item#:
ASPRIMAAGASHS
[Benzyl Penicillin Sodium Salt]

PR1MA Penicillin G Sodium Salt [Benzyl Penicillin Sodium Salt]

Common Name: Benzyl Penicillin Sodium Salt
CAS Number: 69-57-8
Molecular Weight: 356.4
Chemical Formula: C16H17N2NaO4S
Solubility: Water
Storage Temp: 2-8°C

Inhibitor of bacterial cell wall synthesis. Active against gram positive and some gram negative bacteria. β-Lactamase sensitive.

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

  • Appearance: White crystalline powder
  • Potency : 1500 - 1750 U/mg
  • Assay: 96.0 - 102.0 %
  • Identification: Pass Test
  • Loss on Drying:  1.0 %
  • pH: 5.5 - 7.5
  • Specific Optical Rotation: +285 - +310 °
  • Absorbance 264 nm: 0.80 - 0.88
  • Absorbance 280nm:  0.10
  • Absorbance 325nm:  0.10
  • Related Substances: Conforms to standard
  • Bacterial Endotoxins : Conforms to standard
  • Sterility: Conforms to standard
  • Country of Origin : Report

  


PR1MA
 Proteinase K

CAS Number: 39450-01-6
Solubility: Water
Storage Temp: -20°C

From Tritirachium album. Serine protease for proteolytic inactivation of nucleases during isolation of DNA and RNA.

Shipping Weight: 0 lbs
Shipping Dimensions: 1.25 x 1.75 x 1.25


Specifications

Appearance: White to Off White Lyophilized Solid
Solubility: 50mM Tris-HCl (pH 7.5), 3mM CaCl2, 50% Glycerol
Purity: ≥ 98.0 %
DNase/ RNase: Not Detected
Activity: ≥ 30.0 U/mg
Unit Definition: 1 unit is defined as the amount of enzyme that will liberate 1.0 µmol of tyrosine from casein/min @37°C, pH 7.5
Country of Origin: China

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


PR1MA Formamide, Super Pure

CAS Number: 75-12-7
Molecular Weight: 45.04
Chemical Formula: CH3NO
Storage Temperature: 2-8°C

For nucleic acid hybridization and sequencing

Shipping Weight: 0.1 lbs
Shipping Dimensions: 3.38 x 4.63 x 3.38

Specifications
  • Appearance: Clorless Liquid
  • Assay: ≥ 99.5 %
  • Freezing Point: 1.0 - 3.0 °C
  • Copper: ≤ 0.0001 %
  • Iron: ≤ 0.0005 %
  • Lead (Pb): ≤ 0.0001 %
  • Zinc: ≤ 0.0001 %
Research or further manufacturing use only, not for food or drug use.
  

PR1MA Sodium Acetate, Anhydrous

CAS Number: 127-09-3
Molecular Weight: 82.0
Chemical Formula: C2H3O2Na
Solubility: Water
Storage Temp: Room Temperature

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

  • Appearance: White Powder
  • Assay: ≥ 99.0 %
  • pH (5% Solution): 7.0 - 9.2
  • Solubility: Soluble in Water
  • Loss on Drying (120 oC):  1.0 %
  • Calcium (Ca):  0.005 %
  • Chloride (Cl):  0.002 %
  • Heavy Metals (as Pb):  0.001 %
  • Insoluble Matter:  0.01 %
  • Iron (Fe):  0.001 %
  • Magnesium (Mg):  0.002 %
  • Phosphate:  0.001 %
  • Sulfate (SO4):  0.003 %
  • Grade: Meet USP/ACS Specifications

  


PR1MA  Thiamine Hydrochloride [Vitamin B1]

Common Name: Vitamin B1
CAS Number: 67-03-8
Molecular Weight: 337.3
Chemical Formula: C12H17CIN4OS  HCl
Solubility: Water
Storage Temp: 2-8°C

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

  • Appearance: White Crystalline Powder
  • Appearance of Solution: Clear, no more color than reference solution Y7 or GY7
  • Identification: Should be positive reaction
  • Identification (IR): Consistent with the reference IR spectra
  • pH: 2.7 - 3.3
  • Sulfates:  300 ppm
  • Limit of Nitrate: No brown ring is produced at the junction of the two layers
  • Lead:  2 ppm
  • Water:  5.0 %
  • Residue on Ignition:  0.1 %
  • Absorbance of Solution:  0.025
  • Residual Solvents (Methanol):  0.3 %
  • Residual Solvents (Ethanol):  0.5 %
  • Related Substance (Impurity A):  0.15 %
  • Related Substance (Impurity B):  0.3 %
  • Related Substance (Impurity C):  0.15 %
  • Related Substance (Any Other Impurity):  0.1 %
  • Related Substance (Total impurities):  0.5 %
  • Related Compounds:  1.0 %
  • Chromatographic Purity:  1.0 %
  • Assay: 98.5 - 101.0 %
  • Staphylococcus Aureus: Negative
  • Salmonella: Negative
  • E.Coli: Negative
  • Total Plate Count:  1000 cfu/g
  • Yeast and Mold:  100 cfu/g
  • Material Source: Acrylonitrate; Acetamidine HCl; Chlorine Ester
  • Production Method: Chemical Synthesis
  • BSE/TSE Free: BSE/TSE Free
  • Non Animal Origin: Non Animal Origin
  • Conclusion: This product complies with the specification of BP/USP/FCC.
  • Country of Origin: Report


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

PR1MA  HEPES, Sodium Salt [N-(2-Hydroxyethyl) piperazine-N'-(2-ethanesulfonic acid)]

Common Name: N-(2-Hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid)
CAS Number: 75277-39-3
Molecular Weight: 260.3
Chemical Formula: C8H17N2O4SNa
Solubility: Water
Storage Temp: Room Temperature

  • pKa (20°C): 7.45-7.65
  • pH Range: 6.8-8.2

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

  • Appearance: White crystalline powder
  • Assay (Titration, dried basis):  98.0 %
  • Chloride (Cl):  0.1 %
  • Heavy Metals (as Pb):  1 ppm
  • Loss on Drying @ 105 oC, 3hrs:  2.0 %
  • pH (1% aqueous @ 25 oC): 9.4 - 11.0
  • pKa @ 20°C: 7.45 - 7.65
  • Solubility (1M Solution in H2O): Clear, complete and colorless
  • UV Absorbance @ 250nm 1M:  1.0

  

PR1MA Hygromycin B Powder  

CAS Number: 31282-04-9
Molecular Weight: 527.5
Chemical Formula: C20H37N3O13
Solubility: Water
Storage Temp: 2-8°C

Aminoglycoside antibiotic inhibits protein synthesis in prokaryote and eukaryote cells. Allows selection of cells expressing the Hygromycin B resistant gene. Working concentrations vary from 30-1000 ug/mg, depending on cell lines and growth conditions.

Shipping Weight: 0 lbs

Shipping Dimensions: 1.25 x 1.75 x 1.25

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


PR1MA Urea, UltraPure (USP Grade)

CAS Number: 57-13-6
Molecular Weight: 60.06
Chemical Formula: CH4N2O
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 - 100.5 %
  • Identification (A, B): Pass Test
  • Appearance of 20% Solution: Pass Test
  • Melting Point: 132.5 to 134.5 oC
  • Moisture (LOD):  1.0 %
  • Alcohol- Insoluble Matter:  0.04 %
  • Residue on Ignition:  0.1 %
  • Chloride:  5 ppm
  • Sulfate:  0.001 %
  • Alkalinity: To pass test
  • Ammonium:  0.05 %
  • Urea Related Compound A:  0.1 %
  • Individual Unspecified Impurities:  0.1 %
  • Total impurities:  2.0 %
  • Heavy Metals:  0.001 %
  • Iron:  0.001 %
  • Residual Solvents USP 467: Meets requirements
  • BSE/TSE Free: BSE/TSE Free
  • Grade: USP
  • Country of Origin : Report

  



PR1MA
  Cefotaxime, Sodium Salt

CAS Number: 64485-93-4
Molecular Weight: 477.5
Chemical Formula: C16H16N5NaO7S 2
Solubility: Water
Storage Temp: 2-8°C

Inhibitor of bacterial cell wall synthesis. Inhibits the crosslinking of peptidoglycan by binding and inactivating transpeptidases. High activity against gram negative bacteria. Often used for elimination of Agrobacterium species after inoculation. Resistant to B-Lactamase activity.

Non toxic to plant cells
Plant cell culture tested

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

  • Appearance: Off White to Pale Yellow Crystalline Powder
  • Assay (Potency dry basis) : 916 - 964 µg/mg
  • Bacterial Endotoxins : Meet the requirements
  • Clarity of Solution: Meet the requirements
  • Color of solution: Meet the requirements
  • Identification (A, B, C): Pass Test
  • Impurity - Individual:  1.0 %
  • Loss on Drying:  3.0 %
  • pH: 4.5 - 6.5
  • Specific Rotation: +58 - +64 °
  • Total impurities:  3.0 %

  


PR1MA
  Gentamicin Sulfate

CAS Number: 1405-41-0
Molecular Weight: 575.67
Chemical Formula: C21H43N5O7  H2SO4
Solubility: Water
Storage Temp: Room Temperature

Cell culture tested. Aminoglycoside antibiotic with bactericidal activity against most gram negative bacteria.
 
Research or further manufacturing use only, not for food or drug use.
  • Appearance: White to off white powder
  • Composition (C1): 20.0 - 50.0 %
  • Composition (C1a): 10.0 - 35.0 %
  • Composition (C2a + C2): 25.0 - 55.0 %
  • Identification: Meet The Requirements
  • Loss on Drying:  18.0 %
  • Methanol:  1.0 %
  • pH: 3.5 - 5.5
  • Potency (Dried basis):  590 µg/mg
  • Residual Solvents: Meet Requirements
  • Residue on Ignition:  1.0 %
  • Specific Optical Rotation: +107 - +121 °
  • Country of Origin: Report

  


PR1MA D-(+)-Glucose [Dextrose Anhydrous]

  • Common Name: Dextrose Anhydrous
  • CAS Number: 50-99-7
  • Molecular Weight: 180.16
  • Chemical Formula: C6H12O6
  • Solubility: Water
  • Storage Temp: Room Temperature

USP Grade material.

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

  • Appearance: White Crystalline Powder
  • Assay: 97.5 - 102.0 %
  • Identification (FTIR Spectrum): Pass Test
  • Identification (HPLC): Matches the reference
  • Specific Rotation: +52.6 - +53.2 °
  • Moisture:  1.0 %
  • Residue on Ignition:  0.1 %
  • Color of solution: Qualified
  • Conductivity:  20.0 µs/cm
  • Dextrins: Qualified
  • Soluble starch and sulfite: Qualified
  • Related Substance ( Maltitol and Isomalt):  0.4 %
  • Related Substance (Maltotriose):  0.2 %
  • Related Substance (Fructose):  0.15 %
  • Related Substance ( Unspecified Impurities):  0.1 %
  • Related Substance (Total impurity):  0.5 %
  • Heavy Metals:  5 ppm
  • Residual Solvents: None
  • Total Bacterial Count:  1000 cfu/g
  • Mold and Yeast:  100 cfu/g
  • E.Coli: Negative
  • Endotoxin:  1.25 EU/g
  • Source: Corn
  • Grade: Meets the current USP Grade
  • BSE/TSE Free: BSE/TSE Free

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