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480762

Sigma-Aldrich

Zinc citrate dihydrate

97%

Synonym(s):

Citric acid zinc salt, Zinc citrate tribasic dihydrate

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About This Item

Linear Formula:
(C6H5O7)2Zn3 · 2H2O
CAS Number:
Molecular Weight:
610.40
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
grade:
for analytical purposes
form:
powder
Pricing and availability is not currently available.

grade

for analytical purposes

Assay

97%

form

powder

mp

334 °C (dec.) (lit.)

SMILES string

O.O.[Zn++].[Zn++].[Zn++].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O.OC(CC([O-])=O)(CC([O-])=O)C([O-])=O

InChI

1S/2C6H8O7.2H2O.3Zn/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);2*1H2;;;/q;;;;3*+2/p-6

InChI key

OXAGUGIXGVHDGD-UHFFFAOYSA-H

Pictograms

Exclamation markEnvironment

Signal Word

Warning

Hazard Statements

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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Articles

Colloidal quantum dots (CQDs) are semiconducting crystals of only a few nanometers (ca. 2–12 nm) coated with ligand/surfactant molecules to help prevent agglomeration.

Questions

1–3 of 3 Questions  
  1. 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

      Helpful?

  2. 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

      Helpful?

  3. Is it cell culture compatible?

    1 answer
    1. This specific product has not been assayed for suitability in cell culture. There are alternative zinc salts in our catalog that have been listed as being suitable for cell culture, such as items Z0251 or Z0152.

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