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31185

Sigma-Aldrich

D.E.R.™ 332

used as embedding medium

Synonym(s):

Bisphenol A diglycidyl ether, Epoxy-Resin, 2,2-Bis[4-(glycidyloxy)phenyl]propane, 4,4′-Isopropylidenediphenol diglycidyl ether, BADGE, D.E.R.™ 332

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About This Item

Empirical Formula (Hill Notation):
C21H24O4
CAS Number:
1675-54-3
Molecular Weight:
340.41
Beilstein:
299026
EC Number:
216-823-5
MDL number:
MFCD00080480
UNSPSC Code:
12161502
PubChem Substance ID:
329753672
NACRES:
NA.25
Pricing and availability is not currently available.

Quality Level

200

SMILES string

CC(C)(c1ccc(OCC2CO2)cc1)c3ccc(OCC4CO4)cc3

InChI

1S/C21H24O4/c1-21(2,15-3-7-17(8-4-15)22-11-19-13-24-19)16-5-9-18(10-6-16)23-12-20-14-25-20/h3-10,19-20H,11-14H2,1-2H3

InChI key

LCFVJGUPQDGYKZ-UHFFFAOYSA-N

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Application

The uniqueness of D.E.R. 332 epoxy resin is reflected in its maximum epoxide equivalent weight of 178. Because of its high purity and lack of polymer factions, samples embedded using D.E.R. 322 have uniform performance, exceptionally low viscosity and color; and improved elevated temperature properties.[1][2]

Caution

Crystallizes very slowly at room-temperature; can be melted by heating up to 50-55 °C

Legal Information

D.E.R. is a trademark of The Dow Chemical Company or an affiliated company of Dow

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Description
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Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H315,H317,H319,H411

Hazard Classifications

Aquatic Chronic 2 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

507.2 - 514.4 °F - closed cup

Flash Point(C)

264 - 268 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7528
BCCL4582
BCCM5141
BCCK8010
BCCK0316

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Jue Ann Soh et al.
Australian endodontic journal : the journal of the Australian Society of Endodontology Inc, 45(2), 171-176 (2018-09-20)
In endodontic infections, inflammatory mediators such as cytokines are released, recruited and retained until the infection is eradicated. Root canal therapy is performed to prevent the spread of infection. The aim of this study was to investigate the effects of
Ayşe Aydoğmuş Erik et al.
Microscopy research and technique, 82(9), 1448-1454 (2019-05-24)
This experimental study aims to evaluate the radiopacity of various fiber post materials and to determine the effects of material composition as analyzed by energy-dispersive X-ray spectrophotometry (EDS; EDAX Team Software; EDAX, Inc., Mahwah, NJ) on radiopacity. Five specimens of
Miroslav Müller et al.
Polymers, 11(7) (2019-07-03)
This paper deals with a research focused on utilization of microparticle and short-fiber filler based on cotton post-harvest line residues in an area of polymeric composites. Two different fractions of the biological filler (FCR-reinforced cotton filler) of 20 and 100
Light and electron microscopy of diet-induced atrial thrombosis in TS mice. I. Primary changes in the endocardium.
W R Lockwood et al.
The American journal of anatomy, 126(2), 185-199 (1969-10-01)
Zihan Xu et al.
Developmental and comparative immunology, 100, 103413-103413 (2019-06-15)
The objective of this study is to explore the immune response of the shrimp Penaeus vannamei to low temperature and air exposure during the mimic waterless transportation. Shrimp were cold shocked at 13 °C for 3 min, then exposed to air at
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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. If you order an epoxy resin, does it include a hardener?

    1 answer

    1. The product D.E.R.™ 332 refers to the epoxy resin component only. It does not include a hardener. Epoxy resins generally require a separate hardener or curing agent to initiate the curing process and achieve the desired properties.

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