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G1796

Glykolid

≥99%

Synonym(e):

1,4-Dioxane-2,5-dione

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Größe/SKUVerfügbarkeitPreis
25 g
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€ 153,00

Über diesen Artikel

Empirische Formel (Hill-System):
C4H4O4
CAS-Nummer:
Molekulargewicht:
116.07
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
EC Number:
207-954-9
MDL number:

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Quality Segment

assay

≥99%

mp

82-86 °C (lit.)

shipped in

dry ice

storage temp.

−20°C

SMILES string

O=C1COC(=O)CO1

InChI

1S/C4H4O4/c5-3-1-7-4(6)2-8-3/h1-2H2

InChI key

RKDVKSZUMVYZHH-UHFFFAOYSA-N

General description

Glycolide is a cyclic dimer of α-hydroxy acid that can be used in the formation of aliphatic polyester. It is synthesized by the dimerization of glycolic acid. It forms a low toxic synthetic biodegradable polymer that can be used in medical applications. It is majorly used in the formation of a highly crystalline poly(glycolide) by ring opening polymerization.

Application

Glycolide can be used as a monomer in the preparation of poly(lactic-co-glycolide)(PGLA) via copolymerization with lactide monomer. PGLA is further used in the following applications:
  • Porous PGLA microsphere scaffolds are used in bone repair applications.
  • Encapsulated PGLA nanoparticles can be used in drug delivery and tissue engineering applications. Polymeric micro/nanoparticles made from PLGA have gained significant interest for their appealing characteristics, including biodegradability, biocompatibility, prolonged drug release, and safeguarding the drug against degradation.
It can also be used to synthesize poly(glycolide-caprolactone)(PGCL) copolymers applicable as bioabsorbable suture materials.

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Dieser Artikel
420603374768BP1110
description

≥99%

description

technical grade, 70 wt. % in H2O

description

55 wt. % in H2O

description

British Pharmacopoeia (BP) Reference Standard

assay

≥99%

assay

-

assay

-

assay

-

storage temp.

−20°C

storage temp.

-

storage temp.

-

storage temp.

2-8°C

mp

82-86 °C (lit.)

mp

10 °C

mp

-

mp

-

Quality Level

200

Quality Level

200

Quality Level

-

Quality Level

-

shipped in

dry ice

shipped in

-

shipped in

-

shipped in

-


Piktogramme

Exclamation mark

Signalwort

Warning

Gefahrencodes

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Lagerklasse

11 - Combustible Solids

Was ist los?

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

PSA (Persönliche Schutzausrüstung)

dust mask type N95 (US), Eyeshields, Gloves



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Questions

1–6 of 6 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/418/501/product-dating-information-06-25-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. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  4. What is the residual solvent content in Product No. G1796. Glycolide?

    1 answer
    1. Residual solvent has been reported for this product as less than 0.1%.

      Helpful?

  5. What is glycoline (Product No. G1796) soluble in?

    1 answer
    1. Prior to gas chromatography we solubilize this product in methylene chloride at a concentration of 20 mg/mL.

      Helpful?

  6. How does the storage temperature relate to shipping conditions?

    1 answer
    1. The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment.

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