|◀ 25 - 36 of 43 ▶|
View:

PR1MA Tween 20

Common Name: Polyoxyethylenesorbitan Monolaurate
CAS Number: 9005-64-5
Solubility: Water
Storage Temperature: Room Temperature

Fatty acid composition:

  • Lauric acid: Approximately 50%
  • Balance: Myristic, Palmitic and Stearic acids.


Shipping Weight: 1.2 lbs
Shipping Dimensions: 2.00 x 6.00 x 2.00


Specifications

Appearance: Yellow to amber viscous liquid
1,4-Dioxane: ≤ 10 ppm
Acid Value: ≤ 2.20 mg KOH/g
Color, Gardner: ≤ 5.0
Hydroxyl Value: 96 - 108 mgKOH/g
Saponification Value: 40.0 - 50.0 mg KOH/g
Water: ≤ 3.00 %

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

Item#:
ASTWEEN20

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 Glycine, Free Base

CAS Number: 56-40-6
Molecular Weight: 75.1
Chemical Formula: C2H5NO2
Solubility: Water
Storage Temperature: Room Temperature


For use in preparing electrophoresis buffers. Cell culture tested.


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


  • Appearance: White odorless crystalline powder with sweet taste.
  • Solubility (5% in water): Clear & colorless
  • Identification (IR): Test Passes
  • Loss on Drying (@105 oC for 2 hrs):  0.20 %
  • Residue on Ignition:  0.10 %
  • Chloride (Cl):  0.007 %
  • Sulfate:  0.0065 %
  • Heavy Metals:  0.002 %
  • Hydrolyzable Substances: Test Passes
  • Related Compound (Diglycine):  0.1 %
  • Related Compound (Triglycine):  0.1 %
  • Related Compound (Glycine Anhydride):  0.1 %
  • Related Compound (Monochloro Acetic Acid):  0.1 %
  • Related Compound (Iminodiacetic Acid):  0.1 %
  • Related Compound (Haxamathylenetetraamine):  0.1 %
  • Related Compound (Total Impurities):  1.0 %
  • Residual Solvent (Chloroform):  60 mcg/gm
  • Residual Solvent (1,4 Dioxane):  380 mcg/gm
  • Residual Solvent (Methylene Chloride):  600 mcg/gm
  • Residual Solvent (Trichloroethylene):  80 mcg/gm
  • Methanol:  0.3 %
  • Assay: 98.5 - 101.5 %
  • Arsenic:  1.0 ppm
  • Total Viable Bacterial Count:  1000 Cfu/gm
  • Coliform Count: Negative
  • Yeast and Mold Count:  100 CFU/g
  • Test for E-Coli: Absent
  • Test for Salmonella: Absent
  • Test for S-Aureus: Absent
  • Test for Pseudoomonas: Absent
  • BSE/TSE Free: BSE/TSE Free
  • Grade: USP
  • Country of Origin : Report

[Dextrose Anhydrous]

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 D-(+)-Glucose [Dextrose Anhydrous]

  • Common Name: Dextrose Anhydrous
  • CAS Number: 50-99-7
  • Molecular Weight: 180.16
  • Chemical Formula: C6H12O6
  • Solubility: Water
  • Storage Temperature: 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
  • Country of Origin: Report
[5-Bromo-4-chloro-3-indolyl-β-D-galactoside]

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™ 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 Temperature: -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 %

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 Acrylamide, 40% Solution

CAS Number: 79-06-1; 7732-18-5
Storage Temperature: 2-8°C


A 40% (w/v) Acrylamide solution.


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
  • Acrylic Acid:  0.003 %
  • Conductivity:  5 µmhos
  • DNase, RNase, protease: Not Detected
  • Electrophoresis: Pass Test
  • pH @25 °C: 6.0 - 7.0

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™ Sodium Carbonate Anhydrous, ACS Grade

Common Name: Soda Ash
CAS Number: 497-19-8
Molecular Weight: 105.99
Chemical Formula: Na2CO3
Solubility: Water
Storage Temperature: 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 %

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
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 Temperature: 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

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 bis-Acrylamide

CAS Number: 110-26-9
Molecular Weight: 154.2
Chemical Formula: C7H10N2O2
Solubility: Water
Storage Temperature: Room Temperature


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


  • Appearance: White Crystalline Powder
  • Absorbance 290nm (1% water ):  0.2
  • Acrylic Acid:  0.001 %
  • Conductivity (2% Water):  5 umhos
  • DNase: Not Detected
  • Identification: Pass
  • pH (1%, 0.1M NaCl) 25oC:  5.0
  • Protease: Not Detected
  • Purity:  99.0 %
  • RNase: Not Detected

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 Chloramphenicol

CAS Number: 56-75-7
Molecular Weight: 323.1
Chemical Formula: C11H12Cl2N2O 5
Solubility: Ethanol, Methanol and Slightly Soluble in Water
Storage Temperature: Room Temperature


Bacteriostatic antibiotic with activity against gram positive and gram negative bacteria.


Plant cell culture tested.


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


  • Appearance: White, greyish-white or yellowish-white, fine, crystalline powder or fine crystals, needles or elongated plates
  • Identification: Pass
  • Melting Point : 149 - 153 oC
  • pH: 4.5 - 7.5
  • Specific Optical Rotation: +17.0 - +20.0 o
  • Chloride:  0.01 %
  • Related Substances:  0.50 %
  • Loss on Drying:  0.50 %
  • Sulfated Ash:  0.10 %
  • Assay (Dried Basis): 98.0 - 102.0 %
  • Non Animal Origin: Non Animal Origin
  • Grade: USP
  • Country of Origin : Report

Premixed Powder, 50:1 Ratio

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 Acrylamide/bis-Acrylamide, Premixed Powder, 50:1 Ratio

Storage Temperature: 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: Powder
  • Solubility: Clear Solution
  • Conductivity: ≤ 10 µmhos
  • Electrophoresis: Pass

PR1MA Ethanol, Reagent Grade

Appearance: Clear Colorless Free of Foreign Matter
Color Value: ≤ 15
Ethyl Alcohol, Denatured:
Conforms Specific Gravity: 0.782 - 0.802
 

Components:

  • Ethyl Alcohol      90%
  • 2-Propanol          5%
  • Methanol            5%

Item#:
ASETHANOL

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
D-(+)-Biotin [Vitamin H]

Common Name: Vitamin H

CAS Number: 58-85-5

Molecular Weight: 244.3

Chemical Formula: C10H16N2O3S

Solubility: Water

Storage Temperature: 2-8°C


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

  • Appearance: White or off white powder
  • Assay: 97.5 - 102.0 %
  • Related Substance (HPLC-Individual Impurity):  1.0 %
  • Related Substance (HPLC-Total Impurities):  2.0 %
  • Residual Solvents: To meet requirments
  • Specific Rotation: +89 - +93 °
  • BSE/TSE Free: BSE/TSE Free
  • Grade: USP

|◀ 25 - 36 of 43 ▶|
View: