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
435457
Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
average Mn ~4,400
Synonym(s):
Nanopatterning, Pluronic® L-121, block-copolymers, PEG-PPG-PEG
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
250 mL | Available to ship TODAY | $85.00 |
About This Item
$85.00
Available to ship TODAYDetails
vapor density
>1 (vs air)
Quality Segment
vapor pressure
<0.3 mmHg ( 20 °C)
form
viscous liquid
mol wt
average Mn ~4,400
composition
PEG, 30 wt. %
refractive index
n20/D 1.454
surface tension
33 dyn/cm, 25 °C, 0.1 wt. % in H2O
viscosity
1,200 cP(25 °C, Brookfield)(lit.)
transition temp
cloud point 14 °C (1 wt. % aqueous solution), softening point 5 °C
density
1.006 g/mL at 25 °C
HLB
1.0 - 7.0
SMILES string
O2C(C2)C.O1CC1
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
Application
Features and Benefits
Physical form
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description average Mn ~4,400 | description average Mn ~2,900 | description average Mn ~14,600 | description average Mn ~8,400 |
| form viscous liquid | form viscous liquid | form - | form beads |
| density 1.006 g/mL at 25 °C | density 1.05 g/mL at 25 °C | density - | density 1.06 g/mL at 25 °C |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| mol wt average Mn ~4,400 | mol wt average Mn ~2,900 | mol wt average Mn ~14,600 | mol wt average Mn ~8,400 |
| viscosity 1,200 cP(25 °C, Brookfield)(lit.) | viscosity 850 cP(25 °C, Brookfield)(lit.) | viscosity 2,800 cP(77 °C, Brookfield)(lit.) | viscosity 1,000 cP(77 °C, Brookfield)(lit.) |
| HLB 1.0 - 7.0 | HLB 12.0 - 18.0 | HLB >24.0 | HLB >24.0 |
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Storage Class
10 - Combustible liquids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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