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29342-U Supelco

Center Drain (CD) screw thread vials, vial only

volume 20 mL, clear glass vial, O.D. × H 27.75 mm × 67 mm, thread 24-414, pkg of 50 ea



Related Categories Analytical/Chromatography, Center Drain (CD) vials, Center Drain screw thread vials, vial only, Vials
material   clear glass vial
feature   closure type screw top vial
packaging   pkg of 50 ea
O.D. × H   27.75 mm × 67 mm
volume   20 mL
fitting   thread 24-414



• Library sample storage
• Lyophilize
• Centrifugation
• Micro mixing
• Extraction
• Concentrations
• Derivatization
• Small scale reactions
· ·

General description

Center Drain vials:
• Available in 3.8 to 60 mL size.
• Less than 4 μL dead volume.

The CD Vial (Center Draining) has a unique conical interior bottom that allows the contents to completely drain to the center bottom of the vial. Maximum extractiion of the contents can be done utilizing either a micropipette or syringe.
• The sturdy CD Vial with the patented unique is ideal for many micro applications.
• The vials are manufactured from Boroisilicate Type 1 glass to safeguard against a change in the pH of the contents.

The 12 x 32 mm CD Vial is available in snap top, crimp top, and 9 mm screw thread finish. This vial offers a 1.5 ml sample volume, works in all autosamplers, provides maximum content retrieval without requiring a limited volume insert. The production process provides consistency of quality and precision throughout all sizes of CD Vials. Bottom thickness dimension is the same in each vial and the conical well is located in the exact center of each vial. The patented CD Vial incorporates a smooth transition area from the sidewall of the vial to the conical well. This allows the contents of the vial to drain to the center of the conical well for maximum extraction (< 4ul dead volume).

Other Notes

The larger volume CD vials (3.8 to 60 mL) have a conical bottom finish. We recommend that a storage rack be used to support the vials. Three different size racks are available.

Legal Information

CD is a trademark of QIS, Inc.

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles
Related Products

related product

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27022 Assembled screw cap with hole with PTFE/silicone septum, black polypropylene cap, thread 24-400, PTFE/silicone, septum thickness 3 mm, for use with 20, 40, or 60 mL vial, pkg of 100 ea

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Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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