Molecular Biology Reagents/Chemicals

MIDSCI™ gives you ultra-pure, cost-competitive molecular biology reagents and lab chemicals for life science research; often with significant cost savings over Sigma Aldrich and other lab reagent providers.

PR1MA™ Chemicals can help with a wide variety of research-based requirements.
 
Use our glycerol for polyacrylamide gel electrophoresis. Eliminate Agrobacterium after inoculation with the carbenicillin we carry. Or detect β-Galactosidase activity with X-GAL which, when combined with the IPTG we stock, can be used to detect lac gene expression in cloning applications.
 
We also carry Luria Broth (Lennox), for the propagation and maintenance of E. coli; DTT, in order to maintain –SH groups in a reduced state; and high gel strength agar for tissue culture and microbiological work.

|◀ 169 - 175 of 175 ▶|
View:

PR1MA Lactobacillus MRS Broth Powder

Solubility: Water
Storage Temperature: Room Temperature


Recommended for the selective isolation and enumeration of lactobacilli.



Ingredients:

  • Peptic Digest of Animal Tissue: 10.0g
  • Beef Extract: 10.0g
  • Yeast Extract: 5.0g
  • Ammonium Citrate: 2.0g
  • Dextrose: 20.0g
  • Polysorbate 80:1.0g
  • Sodium acetate: 5.0g
  • Magnesium Sulfate: 0.1g
  • Manganese Sulfate: 0.05g
  • Sodium Phosphate, Dibasic: 2.0g


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


  • DCM Appearance: Homogeneous, free flowing with soft lumps, yellow beige to yellow tan
  • PPM Appearance: Clear, no to light ppt, medium to dark amber
  • Microorganism (Lactobacillus Casei ATCC 393 ): Good to Excellent
  • Microorganism (Lactobacillus Fermentum ATCC 9338 ): Good to Excellent
  • Microorganism (Lactobacillus Plantarum ATCC 8014 ): Good to Excellent
  • Microorganism (Lactobacillus Rhamnosus ATCC 9595 ): Good to Excellent
  • pH (5.5 % Solution @25 oC): 6.3 - 6.7

PR1MA Sodium Citrate, Trisodium Salt, Dihydrate, [Citric Acid, Trisodium Dihydrate]

Common Name: Citric Acid, Trisodium Dihydrate
CAS Number: 6132-04-3
Molecular Weight: 294.1
Chemical Formula: C6H5Na3O7  2H2O
Solubility: Water
Storage Temperature: Room Temperature


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


  • Appearance: White crystalline powder
  • Assay:  99.0 %
  • pH (5% Solution): 7.0 - 9.0
  • Alkalinity: Pass Test
  • Chloride:  50 ppm
  • Heavy Metals :  10 ppm
  • Identification Tests: Passes Tests
  • Loss on Drying: 10.0 - 13.0 %
  • Sulfate :  150 ppm
  • Tertrate: Meets USP Test
  • Grade: Meets current USP Specifications

PR1MA Chlortetracycline Hydrochloride

CAS Number: 64-72-2
Molecular Weight: 515.3
Chemical Formula: C22H23ClN2O8 • HCl
Solubility: Water
Storage Temperature: -20°C

 
Bacteriostatic antibiotic active against gram positive and gram negative bacteria.

 
Protect from light.

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

 
  • Appearance: Yellow Crystalline Powder
  • Crystallinity: Pass
  • Identification: Pass
  • Loss on Drying:  2.0 %
  • pH (1% Solution in Water)@ 25°C: 2.3 - 3.3
  • Potency:  900 µg/mg
  • Specific Rotation: -250 - -235°
[N-(2-Hydroxyethyl)piperazine-N'-(3-propane sulfonic acid)] [Epps]

PR1MA HEPPS [N-(2-Hydroxyethyl)piperazine-N'-(3-propane sulfonic acid)] [EPPS]
 

Common Name: HEPPS [N-(2-Hydroxyethyl)piperazine-N'-(3-propane sulfonic acid)] [EPPS]
CAS Number: 16052-06-5
Molecular Weight: 252.3
Chemical Formula: C9H20N2O4S
Solubility: Water
Storage Temperature: Room Temperature


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

  • Appearance: White Crystalline Powder
  • Assay (Titration, dried basis):  99.0 %
  • Loss on Drying:  1.0 %
  • pH (1mol/L in Water @ 20 oC: 5.0 - 7.0
  • Solubility (0.1M in water): Clear and Colorless

PR1MA  Streptomycin Sulfate

  

CAS Number: 3810-74-0
Molecular Weight: 1457.4
Chemical Formula: (C21H39N7O12) 2  3H2SO4
Solubility: Water
Storage Temperature: 2-8°C

 
Aminoglycoside antibiotic with a bactericidal action against most gram negative bacteria. Plant cell culture tested.


WARNING! This product can expose you to Streptomycin sulfate, a chemical which is known to the State of California to cause developmental harm. For more information go to www.P65Warnings.ca.gov.


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


  • Appearance: Fine White Powder
  • Appearance of Solution: Clear
  • Abnormal Toxicity: Meets The Requirements
  • Bacterial Endotoxins : ≤ 0.25 IU/mg
  • Colorimetric: ≥ 90.0 %
  • Identification: Complies
  • Loss on Drying (EP): ≤ 7.0 %
  • Loss on Drying (USP): ≤ 5.0 %
  • Methanol (GC): ≤ 0.3 %
  • pH: 4.5 - 7.0
  • Potency (Dried basis): ≥ 720 µg/mg
  • Residual Solvents: No Class 1, 2, 3 or other residual solvents are present
  • Streptomycin B: ≤ 3.0 %
  • Sulfate: 18.0 - 21.5 %
  • Sulfated Ash: ≤ 1.0 %
  • BSE/TSE: BSE/TSE Free

PR1MA IPTG [Isopropyl-β-D-thiogalactopyranoside], Dioxane Free

Common Name: Isopropyl-β-D-thiogalactopyranoside
CAS Number: 367-93-1
Molecular Weight: 238.3
Chemical Formula: C9H18O5S
Solubility: Water, ethanol
Storage Temperature: 2-8°C


IPTG is combined with X-GAL to detect lac+ colonies or cells in a colorimetric assay. Distinguishes recombinants (white) from non- recombinants (blue) in cloning strategies using vectors such as Lambda-11, M13mp 18 and 19, pUC18 and 19, pUR222 containing the lacZ gene.


Dioxane-Free
Water Content: <0.49%


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


  • Appearance: White Crystalline Powder
  • Assay (HPLC): 98.0 - 101.0 %
  • Purity (HPLC):  99.0 %
  • 1,4-Dioxane: Not Detected
  • Absorbance @300nm (5% w/v sol in H2O):  0.13
  • Absorbance @400nm (5% w/v solution in H2O):  0.06
  • Identification: IR Concordant with Standard
  • Melting Range: 110 - 114 °C
  • Moisture Content (KF): ≤ 1.0 %
  • pH (5% in water): 5.0 - 7.0
  • Solubility: Soluble in Water and Methanol
  • Specific Optical Rotation: -34.5 - -28.5 o
  • BSE/TSE Free: BSE/TSE Free
  • Non Animal Origin: Non Animal Origin
  • Country of Origin : Report

PR1MA™ Benzamidine Hydrochloride

 

CAS Number: 1670-14-0

Molecular Weight: 156.6

Chemical Formula: C7H8N2 • HCl

Solubility: Water

Storage Temperature: 2-8°C

 

Competitive serine protease inhibitor which forms stable complexes with and blocks the active sites of enzymes. Target enzymes include trypsin, hymotrypsin, kallikzein and plasmin.

 

Shipping Weight: 0.3 lbs

 

Shipping Dimensions: 3.50 x 3.75 x 3.50


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

 

 

Specifications

  • Appearance: White crystalline powder
  • Assay (HPLC): ≥ 98.5 %
  • Loss on Drying: ≤ 2 %
  • Residue on Ignition: ≤ 0.5 %
  • Material Source: Chemical Synthesis
  • BSE/TSE Free: BSE/TSE Free
  • Country of Origin: Report

 

 

|◀ 169 - 175 of 175 ▶|
View: