Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

View All Documentation

719935

Sigma-Aldrich

Resomer® R 203 S, Poly(D,L-lactide)

ester terminated, Mw 18,000-28,000

Synonym(s):

Lactide polymer, PDLLA

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
[C3H4O2]x[C2H2O2]y
CAS Number:
202832-99-3
MDL number:
MFCD00217751
UNSPSC Code:
12162002
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

200

form

amorphous

mol wt

Mw 18,000-28,000

degradation timeframe

<6 months

viscosity

0.25-0.35 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

[H]OC(C(OC(C(O[R])=O)C)=O)C

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

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
769835769843719943
Resomer&#174; R 203 S, Poly(D,L-lactide) ester terminated, Mw 18,000-28,000

719935

Resomer® R 203 S, Poly(D,L-lactide)

Resomer&#174; R 205 S, Poly(D,L-lactide) ester terminated

769835

Resomer® R 205 S, Poly(D,L-lactide)

Resomer&#174; R 207 S, Poly(D,L-lactide) ester terminated

769843

Resomer® R 207 S, Poly(D,L-lactide)

Resomer&#174; R 203 H, Poly(D,L-lactide) acid terminated, Mw 18,000-24,000

719943

Resomer® R 203 H, Poly(D,L-lactide)

viscosity

0.25-0.35 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

viscosity

0.55-0.75 dL/g

viscosity

1.3-1.7 dL/g

viscosity

0.25-0.35 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

form

amorphous

form

amorphous

form

amorphous

form

amorphous

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

mol wt

Mw 18,000-28,000

mol wt

-

mol wt

-

mol wt

Mw 18,000-24,000

degradation timeframe

<6 months

degradation timeframe

-

degradation timeframe

-

degradation timeframe

<6 months

transition temp

Tg 46-50 °C

transition temp

-

transition temp

-

transition temp

Tg 48-52 °C

General description

Ester terminated Poly(D,L-lactide) (PDLLA, RESOMER® ) is a copolymer of L and D-lactic acid and (or L and D lactide). The structure is highly irregular and amorphous.[1] RESOMER® polymers are bioresorbable aliphatic polyesters comprised of a range of different ratios of lactide and glycolide monomers, PLA stereochemistries, and end-group functionalization.

Application

This biodegradable polyester is useful for the controlled release of drugs both in vitro and in vivo.[2]

Legal Information

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCH6492
MKCV7441
BCCD0968
BCCB8258
BCBW5330

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service