All Photos(1)



PYREX® EZ Access wide mouth volumetric flask

capacity 50 mL

Sign Into View Organizational & Contract Pricing

Select a Size

volumetric glassware


PTFE liner
cap (polybutylene terephthalate)
flask (class A glass)
flask (flat bottom, threaded)


heavy duty, with GL32 screw cap


class A
To Contain


pack of 1 ea


Corning 5655-50

H × O.D.

135 mm × 48 mm


50 mL


GL 32 thread

Looking for similar products? Visit Product Comparison Guide

General description

The wide funnel-like threaded top plus the wide neck design allows for easy filling and mixing of various materials into solution. This extra wide neck also allows access to larger capacity pipets. For added convenience, one size (GL32) of the chemically resistant, high temperature polybutylene terephthalate screw caps fits all flasks. This threaded cap has a PTFE liner to provide a secure closure for leak proof solution storage.

Legal Information

EZ Acess is a trademark of Corning, Inc.
PYREX is a registered trademark of Corning, Inc.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).


Product Number
Pack Size/Quantity

Additional examples:





enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

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

Contact Technical Service