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
95904
Poly(ethylene glycol)
BioUltra, 4,000
Greener Alternative
Synonym(s):
Polyethylene glycol, PEG
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About This Item
Quality Segment
product line
BioUltra
form
powder
mol wt
Mr 3500-4500
greener alternative product characteristics
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
impurities
insoluble matter:, passes filter test, ≤0.001% peroxides (as H2O2):
pH
5.5-7.0 (25 °C, 50 mg/mL in H2O)
mp
58-61 °C
solubility
H2O: 50 mg/mL at 25 °C, clear, colorless
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤200 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
λ
50 mg/mL in H2O
UV absorption
λ: 260 nm Amax: ≤0.10, λ: 280 nm Amax: ≤0.04
greener alternative category
SMILES string
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
Application
- as a component of wheat protoplast isolation and transformation buffer
- as an additive in suspension cell culture
- as a component of yeast transformation buffer
- as a component of crystallization buffer in cysteine protease ATG4B crystallization
1 of 1
This Item | |||
|---|---|---|---|
| description BioUltra, 4,000 | description average Mv ~8,000, powder (crystalline) | description BioXtra, average mol wt 3,350, powder | description BioUltra, 200 |
| form powder | form powder (crystalline) | form powder | form liquid |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| mol wt Mr 3500-4500 | mol wt average Mv ~8,000 | mol wt average mol wt 3,350 | mol wt Mr 190-210 |
| impurities ≤0.001% peroxides (as H2O2):, insoluble matter:, passes filter test | impurities - | impurities ≤0.01% Phosphorus (P), ≤0.1% Insoluble matter | impurities ≤0.02% peroxides (as H2O2):, insoluble matter:, passes filter test |
| mp 58-61 °C | mp 60-63 °C (lit.) | mp - | mp - |
| cation traces Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Co: ≤5 mg/kg, Sr: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Zn: ≤5 mg/kg, Bi: ≤5 mg/kg, Al: ≤5 mg/kg, Na: ≤200 mg/kg, Cu: ≤5 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Mo: ≤5 mg/kg, K: ≤200 mg/kg, Pb: ≤5 mg/kg, Mn: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg | cation traces - | cation traces Ca: ≤0.0005%, Mg: ≤0.0005%, Na: ≤0.05%, Cu: ≤0.0005%, K: ≤0.005%, Pb: ≤0.001%, Al: ≤0.0005%, NH4+: ≤0.05%, Fe: ≤0.0005%, Zn: ≤0.0005% | cation traces Ca: ≤10 mg/kg, As: ≤0.1 mg/kg, Mo: ≤5 mg/kg, Co: ≤5 mg/kg, Ni: ≤5 mg/kg, K: ≤500 mg/kg, Cr: ≤5 mg/kg, Sr: ≤5 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Cd: ≤5 mg/kg, Zn: ≤5 mg/kg, Al: ≤5 mg/kg, Bi: ≤5 mg/kg, Mg: ≤5 mg/kg, Na: ≤200 mg/kg, Mn: ≤5 mg/kg, Ba: ≤5 mg/kg, Li: ≤5 mg/kg, Fe: ≤5 mg/kg |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
281.5 °F - closed cup
flash_point_c
138.6 °C - closed cup
ppe
Eyeshields, Gloves, type N95 (US)
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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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