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Supplies
High-Quality Laboratory Supplies for Reliable Research
MIDSCI™ understands that the right lab supplies are the foundation of reliable research across the life sciences. When your lab relies on frequent replenishment of essential scientific supplies, we deliver the labware you need with the speed and personalized service you don’t see with big-box distributors.
From glassware and plasticware to PPE, pipette tips, test tubes, and reagent reservoirs, we offer products designed for accuracy, durability, and compliance. Whether you work in life sciences, microbiology, or pharmaceutical development, our lab essentials help you maintain efficiency without compromising quality.
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32 Place Junior Flipper® Rack
Perfect for sequencing!
Our Flipper Racks are crafted to be the perfect partner for PCR preparation, offering reliable performance and easy handling. The dual-sided feature and temperature resilience ensure your life’s work is protected and your lab runs efficiently. Convenient modeling indexes and varying colors make it easy to keep your space organized.
Two-sided rack accommodates 2 tube sizes:
- Side A: 32 wells for 1.5 mL or 2.0 mL tubes with 8 smaller positions for 0.5 mL tubes.
- Side B: 32 wells for 0.5 mL tubes with 8 larger positions for 1.5 or 2.0 mL tubes.
Colors: Assorted Fluorescent includes Blue, Green, Orange, Pink, Yellow
32 Wells, 8 x 4
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Cool Chambers Sample Cooling Racks
CoolSafe Specialty chambers are ideal for ice pans, ice buckets and cold or hot plates. These do not fit the CoolSafe Systems. Freeze these chambers overnight for added cooling convenience. Ideal for use on hot or cold plates or for temperature sensitive liquid transfers.
Ideally Sized - A variety of options are available to accommodate PCR tubes and trays, 1.5 mL, 15 mL and 50 mL conical tubes.
Proudly made in the USA! Click here for more made in America products!
Looking for replacement tubes? Check out PR1MA™ microcentrifuge tubes here!
Labcon SuperClear® Microcentrifuge Tubes
- Optically clear resin
- High centrifuging to 20,000 x G
- ATP, RNase/DNase and Endotoxin Free (non-pyrogenic)
SuperClear® tubes feature an ultra-clear polypropylene resin that gives you a clear view of the pellet as well as correct color rendition. Designed to be sustainable, these tubes use less plastic than most other tubes and include ergonomic caps with smooth surfaces that help reduce the potential for repetitive strain injury. The cap also includes a special 90° hinge that makes the cap easier to close while on handed pipetting. These tubes are designed to stay closed during boiling to protect your sample.
Available in 0.5 mL, 1.7 mL, and 2.0 mL sizes that fit all stand high capacity rotors. Tubes with snap caps have pierceable caps, a side writing surface and graduations. Autoclavable (122°C) and freezable (-80°C).
Proudly made in the USA! Click here for more made in America products!
Labcon ViewPoint™ Thermochromic Microcentrifuge Tubes
- ViewPoint™ Thermochromic
- Real-time temperature signaling
- Reversibly transition from clear to light blue at 4°C with full dark blue transition at 0°C
- 1.5 mL
- With flat easy open attached snap caps; side graduations, and frosted writing surface
- Protease, Human DNA, ATP, RNase/DNase and Endotoxin Free (non-pyrogenic)
- Sperm Motility Assay (SMA) Mouse Embryo Assay (MEA) validated safe for cell culture
- Polypropylene USP Class VI resin
- Ultra high centrifuging to 40,000 x G
- Freezable to -80°C
- Protease, Human DNA, ATP, RNase/DNase and Endotoxin Free (non-pyrogenic), Sperm Motility Assay (SMA) Mouse Embryo Assay (MEA) validated safe for cell culture
- Greener Choice Claims
- Renewable Energy
- Certifications and Seals of Approval
- Free-of a substance that causes environmental harm
- Non-Toxic
- Recyclable
Specifications
| Cap Style | Snap Cap |
| Autoclavable | Yes |
| Color | Clear to Blue color change at 0ºC to 4ºC |
| Max. Force | 40,000 RCT |
| Packaging | 500/pk, 2 pks/cs |
| Shipping Condition | RT |
| Graduated | Yes |
| Certifications/Compliance | ISO 9001:2015; FDA CFR21 GMP; CE IVD Conformity |
| Capacity | 1.5 mL |
| Material | Polypropylene USP Class VI Resin |
| Application | Centrifugation |
| Temp. Range | Freezable to -80ºC |
| Sterility | Non-Sterile |
| Product Line | ViewPoint™ |
Proudly made in the USA! Click here for more made in America products!
50-Well Freezer Storage Boxes with Hinged Lid
- Superior replacement for cardboard boxes - will not degrade or absorb moisture
- Durable polypropylene construction withstands freezing (to -80°) and autoclaving
- Improved 3 point hinge maintains its integrity during repeated use
- Alphanumerically labeled translucent lid provides easy sample identification
- Positive catch keeps lid securely fastened
- Holds 50 x 1.5 / 2.0 mL tubes
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Labcon Reusable Tube Racks
- 25-Place
- Autoclavable (122°C) and freezable (-80°C)
- Numbered Wells
- Made of polypropylene
These racks are designed to hold Labcon centrifuge tubes. Unlike foam racks, they are autoclavable and will not fall apart with repeated use. They can be frozen, and they stack together to minimize storage space. An interlocking design lets you connect more than one rack to create a handy workstation. Autoclavable (122°C) and freezable (-80°C).
Expandable tube racks can be assembled to hold 5 mL, 15 mL, and 50 mL tubes. You can link sections of 25 to suit your needs. Made of polypropylene.
These racks are designed for Labcon centrifuge tubes, other tube brands may not fit correctly.
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Labcon Tip Top™ Dispenser Caps
- Convenient and Easy: Just tilt the tube and squeeze Tip Top® slightly to dispense one drop onto a slide.
- Safe Dispensing: You don't need to open the tube preventing spillage and exposure to infectious agents.
- Very Low Evaporation: A flexible cap is available to cover the Tip Top® so you can store samples longer.
- Medical Grade Resins: USP Class medical grade resins and packaging.
Safe Dispensing of Blood Samples
Tip Top® Dispenser Caps A safe and cost-effective way of dispensing samples in your lab. The Tip Top® is a disposable cone shaped cap that fits all standard 13 or 16 mm blood collection tubes. A small opening allows you to dispense a sample without removing the Tip Top cap so you can prepare smears on slides or dispense into reagent wells or microcentrifuge tubes safely. Inside the tip of the Tip Top® is an integral porous filter that removes fibrin from the blood sample allowing for a perfect smear.
Tip Top® is a convenient alternative to pipetting from an open blood tube, just tilt the tube and squeeze to dispense one drop. And Tip Top® is safe you don't need to open the tube and pipet out of the tube so spillage is reduced along with potential exposure to infectious disease. Just carefully remove the stopper and replace with Tip Top®.
The Tip Top® dispenser cap can be used with almost any liquid. Made from chemically resistant polyethylene they can dispense serum, reagents, plasma, whole blood and CSF. The integral porous polyethylene filter efficiently separates serum and can also be used a a reagent blender.
Fits standard 13 x 100 and 16 x 100 collection tubes.
Proudly made in the USA! Click here for more made in America products!
Looking for replacement tubes? Check out PR1MA™ Microcentrifuge Tubes here!
- High centrifuging to 20,000 x G
- Freezable (-80°C)
- Autoclavable
- Capacity: 1.5 mL
- ATP, RNase/DNase and Endotoxin Free (non-pyrogenic)
- Attached flat snap caps
SuperSlik® low retention microcentrifuge tubes have a low protein binding surface that minimizes sample loss during sample manipulation. Ideal for applications such as mass spectrometry (ms), immunoprecipitation (IP), co-immunoprecipitation (Co-IP). Leakproof snap caps may be penetrated by a syringe and will no pop open during autoclaving. Compatible with many thermal cyclers and able to tolerate centrifuge speeds up to 20,000 RCF.
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Labcon Security Cups for Urine or Specimen Collection
- 100 mL Cups
- Sample spouts may be cut with scissors or pierced with a syringe
- Impact and pressure resistant seal
These security containers are designed to provide secure and reliable tamper-proof seals for specimens in transit or storage. After specimen collection the screw cap is tightened first by hand, then by the special wrench, which engages teeth on the lids rim to create a locked and leak-proof seal. To access the specimen for testing procedures, large or small sample spouts may be cut with scissors or pierced with a syringe. Spouts can be resealed with the large or small plugs and returned to storage for further testing. The impact-resistant, durably constructed, and pressure-resistant seal offers excellent protection during handling and transport. Made of non-reactive polyethylene resin.
Proudly made in the USA! Click here for more made in America products!
Labcon SuperSpin® Microcentrifuge Tubes
- Ultra-high centrifuging up to 40,000 x G*
- Optically clear resin
- Resin will not interfere with DNA or PCR
- For Phenol/Chloroform vortexing
- Reduced Thumb Force
- Autoclavable (122°C) and freezable (-80°C)
- Packaged in resealable bags
- Tubes have flat pierceable caps and a side writing surface
- Graduated
SuperSpin® microcentrifuge tubes were designed with the ability to extract DNA from samples and then amplify that DNA with reliable results in mind. They can be trusted to spin at high rates and can be opened and closed easily many times to add or remove agents. The interior surfaces are ultra-smooth with low retention. The tubes are clear enough to be use in spectrophotometers and have no extractables at the wavelength ranges you use to detect DNA. SuperSpin® microcentrifuge tubes are more than twice as effective at transmitting light than most brands of micro centrifuge tubes.
*Maximum G-force can be affected by organic solvents, multiple spin cycles, or low temperature storage.
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RV-Pette PRO Dispenser Tip for Repeat Volume Pipettors
Dispenser Syringe Tips for use on Diamond Rv-Pette PRO™ Repeat Volume PipettorS. Precision manufacturing under strict quality controls ensures that RV-Pette PRO™ Dispenser Syringe Tips deliver excellent results when used with Diamond RV-Pette PRO™ Repeat Volume Pipettors and most popular brands of repeat volume pipettors. RV-Pette PRO™ tips are available in 12 sizes for dispensing volumes from 1 uL to 5500 uL and are available sterile or non-sterile.
Features and Benefits
Variety - Wide range of sizes match all sizes offered by other manufacturers and eliminates the need to change protocols or practices
Safety - Tips use the direct displacement method and are the safe, secure choice for handling a wide range of liquids including those that are viscous, infectious, and volatile
Reliability - Each tip is tested during the automated manufacturing process
Confidence - Sterile tips are individually wrapped and certified to be RNase, DNase, ATP, and pyrogen free for even the most critical applications
ig BL21 (DE3)
Intact Genomics chemically competent BL21(DE3) E. coli cells are suitable for transformation and routine protein expression.
Specifications
Competent cell type: Chemically competent
Derivative of: BL21(DE3)
Species: E. coli
Format: Tubes
Transformation efficiency: 1.0 x 109 cfu/µg pUC19 DNA
Blue/white screening: Yes
Shipping condition: Dry ice
Quality Control
Quality control is performed following the production of each new lot of product to ensure that it meets the quality standards and specifications designated for the product. Each lot is repeatedly compared side-by-side with leading competitors to ensure our products outperform the competitor before product launching.
Reagents Needed for One Reaction
BL21(DE3) Chemically Competent Cells: 50 µl
DNA (or pUC19 Control, 10 pg/µl): 1 µl
Recovery Medium: 1 ml
Contents & Storage
BL21(DE3) Competent Cells: -80 °C
pUC19 Control DNA: -20 °C
Recovery Medium: 4 °C
Genomic Features
BL21(DE3) chemically competent cells have the following features:
- Widely used host background
- T7 Expression Strain
- Deficient in both lon (1) and ompT proteases
- Resistant to phage T1 (fhuA2)
- B Strain
Genotype
F-ompT hsdS(rB- mB-) gal dcm (DE3)
General Guidelines
Follow these guidelines when using BL21(DE3) chemically competent E. coli.
- Handle competent cells gently as they are highly sensitive to changes in temperature or mechanical lysis caused by pipetting.
- Thaw competent cells on ice, and transform cells immediately following thawing. After adding DNA, mix by tapping the tube gently. Do not mix cells by pipetting or vortexing.
Transformation Protocol
- Remove competent cells from the -80 °C freezer and thaw completely on wet ice (10-15 minutes).
- Aliquot 1-5 µl (1 pg-100 ng) of DNA to the chilled microcentrifuge tubes on ice.
- When the cells are thawed, add 50 μl of cells to each DNA tube on ice and mix gently by tapping 4-5 times. For the pUC19 control, add 1 µl of (10 pg/µl)
- DNA to a chilled microcentrifuge tube, prior to adding 50 µl of cells. Mix well by tapping.
- Incubate the cells with DNA on ice for 30 minutes.
- After 30 minute ice incubation, heat shock the cells at 42 °C for 45 seconds.
- Transfer the tubes to ice for 2 minutes.
- Add 950 µl of Recovery Medium or any other medium of choice to each tube.
- Incubate tubes at 37 °C for 1 hour at 210 rpm.
- Spread 50 μl to 200 μl from each transformation on pre-warmed selection plates.
- Incubate the plates overnight at 37 °C.
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