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If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

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Key Documents

Safety Information

Z404977

Sigma-Aldrich

Aldrich® Sure/Stor™ flask

capacity 25 mL, clear glass

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1 EA
CN¥3,335.93

CN¥3,335.93

Estimated to ship onJune 06, 2025Details

New, lower price on this item!
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1 EA
CN¥3,335.93

About This Item

UNSPSC Code:
41121804
NACRES:
NB.43

CN¥3,335.93

Estimated to ship onJune 06, 2025Details

New, lower price on this item!

material

clear glass
round bottom
three-neck

sterility

non-sterile

packaging

pack of 1

manufacturer/tradename

Sigma-Aldrich

capacity

25 mL

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General description

Designed for safe, reliable storage and dispensing of air-sensitive and odoriferous chemicals, pyrophorics, alkyl lithiums, Grignards, corrosives, and purified or deuterated solvents.
Features:
  • High-vacuum PTFE valve-to-glass seal eliminates air contamination in storage and septum leakage after initial needle penetration
  • Heavy-wall borosilicate glass
  • Removable side-arm hose connector for easy attachment of vacuum and inert gas lines. For long term storage, replace hose connector with a rubber septum for secondary protection. Flasks supplied with 2 septa. Order replacement septa, Z106496
  • Plastic-coated* flasks reduce chance of breakage and contain spills
*The coating is a thermoplastic film that softens appreciably at temperatures above 110°C, becoming less protective.Tests show that the coating is 100% effective in preventing flying glass when a fully evacuated flask is broken.
Sure/Stor Technique
1. Connect flask to vacuum line to pump out air and strong odor, then refill with inert gas
2. Open PTFE valve sufficiently to allow syringe needle (or pipette) to pass through septum-inlet and reach the stored liquid in flask
3. Close the PTFE valve after needle removal and pump out again to remove air and odor (use rubber septa Z553913 or Z554030 on septum-inlet)
4. For long-term storage, replace hose connector with a rubber septum for secondary protection

NOTICE: We supply high quality PTFE valves on Aldrich brand glassware that has been tested and approved by our Glass Center.

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Stor is a trademark of Sigma-Aldrich Co. LLC

Regulatory Information

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Bottles & Cans

Packaging options for solvents include glass, PVC coated, Sure/Seal bottles, and aluminum cans, offering diverse dispensing solutions.

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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