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Merck

739960

Resomer® RG 505, Poly(D,L-lactide-co-glycolide)

ester terminated, Mw 54,000-69,000

Synonym(s):

PLGA

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PLN 338.30

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PLN 1,280.00

PLN 338.30

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About This Item

Linear Formula:
[C3H4O2]x[C2H2O2]y
CAS Number:
26780-50-7
MDL number:
MFCD00131930
UNSPSC Code:
12162002
NACRES:
NA.23

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Product Name

Resomer® RG 505, Poly(D,L-lactide-co-glycolide), ester terminated, Mw 54,000-69,000

SMILES string

O2C(C(=O)OC(C2=O)C)C.O1CC(=O)OCC1=O

InChI

1S/C6H8O4.C4H4O4/c1-3-5(7)10-4(2)6(8)9-3;5-3-1-7-4(6)2-8-3/h3-4H,1-2H3;1-2H2

InChI key

LCSKNASZPVZHEG-UHFFFAOYSA-N

form

amorphous

feed ratio

lactide:glycolide 50:50

mol wt

Mw 54,000-69,000

degradation timeframe

<3 months

viscosity

0.61-0.74 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

transition temp

Tg 48-52 °C

storage temp.

2-8°C

Quality Level

100

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1 of 4

This Item
719919719862769797
Resomer&#174; RG 505, Poly(D,L-lactide-co-glycolide) ester terminated, Mw 54,000-69,000

Sigma-Aldrich

739960

Resomer® RG 505, Poly(D,L-lactide-co-glycolide)

Resomer&#174; RG 752 H, Poly(D,L-lactide-co-glycolide) acid terminated, lactide:glycolide 75:25, Mw 4,000-15,000

Sigma-Aldrich

719919

Resomer® RG 752 H, Poly(D,L-lactide-co-glycolide)

Resomer&#174; RG 653 H, Poly(D,L-lactide-co-glycolide) acid terminated, Mw 24,000-38,000

Sigma-Aldrich

719862

Resomer® RG 653 H, Poly(D,L-lactide-co-glycolide)

Resomer&#174; RG 755 S, Poly(D,L-lactide-co-glycolide) ester terminated

Sigma-Aldrich

769797

Resomer® RG 755 S, Poly(D,L-lactide-co-glycolide)

viscosity

0.61-0.74 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

viscosity

0.14-0.22 dL/g, 0.5 % in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

viscosity

0.32-0.44 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

viscosity

0.50-0.70 dL/g

form

amorphous

form

(Powder or Solid or Chunk(s))

form

amorphous

form

amorphous

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

feed ratio

lactide:glycolide 50:50

feed ratio

lactide:glycolide 75:25

feed ratio

lactide:glycolide 65:35

feed ratio

lactide:glycolide 75:25

mol wt

Mw 54,000-69,000

mol wt

Mw 4,000-15,000

mol wt

Mw 24,000-38,000

mol wt

-

degradation timeframe

<3 months

degradation timeframe

<6 months

degradation timeframe

<5 months

degradation timeframe

-

Application

Poly(lactide-co-glycolide)(PLGA) can be used to fabricate sustained-release drug delivery systems, for example, it can be used to encapsulate the anti-inflammatory lipophilic drug atorvastatin.

General description

Poly(lactide-co-glycolide)(PLGA) is a biodegradable polymer used in the preparation of polymericmicrospheres. These polymers degrade in vivo by hydrolysis of their esterbackbone into non-toxic products, which are excreted by the kidneys oreliminated as CO2 and water through biochemical pathways. PLGAmicrospheres have been widely used to encapsulate drug molecules and have beenused as long-acting, sustained-release pharmaceutical formulations.

Legal Information

Product of Evonik
RESOMER is a registered trademark of Evonik Rohm GmbH

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB3928
SDBB0464
STBL2290
STBK8649
STBK5207

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Igor Jeroukhimov et al.
Journal of the American College of Surgeons, 218(1), 102-107 (2013-11-12)
Chronic pain after inguinal hernia repair occurs in 16% to 62% of patients. The underlying mechanism probably involves sensory nerve damage and abnormal healing that might be influenced by the materials chosen for the procedure. We hypothesize that nonabsorbable sutures
Maria Kirzhner et al.
Ophthalmology, 120(6), 1300-1304 (2013-02-13)
To compare wrapped and polymer-coated hydroxyapatite implants in children undergoing primary enucleation with no adjuvant therapies. Retrospective, interventional cohort study. All children undergoing primary enucleation without adjuvant therapies between 1999 and 2009 at a tertiary pediatric cancer hospital. Review and
Teresa Musumeci et al.
International journal of pharmaceutics, 440(2), 135-140 (2012-10-20)
Melatonin, a neurohormone secreted by the pineal gland, is able to modulate intraocular pressure (IOP). The aim of this study was to generate nanoparticle (NPs) sustained release formulations that allow to extend the pre-corneal residence time of melatonin, thus prolonging
Daniel R Getts et al.
Nature biotechnology, 30(12), 1217-1224 (2012-11-20)
Aberrant T-cell activation underlies many autoimmune disorders, yet most attempts to induce T-cell tolerance have failed. Building on previous strategies for tolerance induction that exploited natural mechanisms for clearing apoptotic debris, we show that antigen-decorated microparticles (500-nm diameter) induce long-term
Patrick Vavken et al.
Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 29(1), 122-132 (2012-12-04)
The objective of this study was to assess the effect of absorbable or nonabsorbable sutures in bioenhanced anterior cruciate ligament (ACL) repair in a skeletally immature pig model on suture tunnel and growth plate healing and biomechanical outcomes. Sixteen female
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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/418/501/product-dating-information-06-25-mk.pdf

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  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

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  3. what is the method of preparation/ synthesis of poly ( D, L- Lactide-co-glycolide) from vegetable oil

    1 answer

    1. This product is an M-Clarity level 100 item. The method of preparation is considered proprietary.

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