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
719900
Resomer® RG 504 H, Poly(D,L-lactide-co-glycolide)
acid terminated, lactide:glycolide 50:50, Mw 38,000-54,000
Synonym(s):
PLGA
About This Item
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Quality Level
form
amorphous
feed ratio
lactide:glycolide 50:50
mol wt
Mw 38,000-54,000
degradation timeframe
<3 months
viscosity
0.45-0.60 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)
transition temp
Tg 46-50 °C
storage temp.
2-8°C
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
1 of 4
This Item | 719919 | 739944 | 739952 |
|---|---|---|---|
| viscosity 0.45-0.60 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 0.45-0.60 dL/g, 0.1 % (w/v) 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) |
| 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 50:50 | feed ratio lactide:glycolide 50:50 |
| mol wt Mw 38,000-54,000 | mol wt Mw 4,000-15,000 | mol wt Mw 38,000-54,000 | mol wt Mw 24,000-38,000 |
| degradation timeframe <3 months | degradation timeframe <6 months | degradation timeframe <3 months | degradation timeframe <3 months |
Application
It can be used to preparepolymer nanospheres for encapsulating CuO, to form stimuli-responsivemultifunctional nanocarriers.
Legal Information
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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What is the degree of polydispersity of Resomer® RG 504 H, Poly(D,L-lactide-co-glycolide)?
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The degree of polydispersity for this product is calculated as the weight average molecular weight divided by the number average molecular weight (Mw/Mn). The specific value can be found on the Certificate of Analysis (COA) for each lot.
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Is the unit of the PLGA molecular weight of Resomer® RG 504 H, Poly(D, L-lactide-co-glycolide) Da?
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Yes, the molecular weight unit of this product is in Da or daltons.
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