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
P3655
Poly-L-ornithine hydrobromide
Mol wt 30,000-70,000
Synonym(s):
L-Ornithine homopolymer hydrobromide
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 10 mg | Available to ship onMay 20, 2026fromMILWAUKEE | $64.40 | |
| 50 mg | Available to ship onMay 20, 2026fromMILWAUKEE | $142.00 | |
| 100 mg | Available to ship onMay 20, 2026fromMILWAUKEE | $213.00 | |
| 500 mg | Available to ship onMay 20, 2026fromMILWAUKEE | $786.00 | |
| 1 g | Estimated to ship onMay 27, 2026fromMILWAUKEE | $1,280.00 |
About This Item
Product Name
Poly-L-ornithine hydrobromide, mol wt 30,000-70,000
form
powder
Quality Segment
mol wt
30,000-70,000
color
white to off-white
storage temp.
−20°C
SMILES string
[Br-].NC(CCCN)C(=O)O.[H+]
InChI
1S/C5H12N2O2.BrH/c6-3-1-2-4(7)5(8)9;/h4H,1-3,6-7H2,(H,8,9);1H
InChI key
GWRQMKDBBHFVIZ-UHFFFAOYSA-N
Application
Biochem/physiol Actions
Analysis Note
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form powder | form powder | form powder or solid |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| color white to off-white | color white to off-white | color white to off-white | color white to off-white |
| mol wt 30,000-70,000 | mol wt 5,000-15,000 | mol wt >100,000 | mol wt >30,000 |
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Product Information Sheet
Global Trade Item Number
| SKU | GTIN |
|---|---|
| P3655-50MG | 04061834372745 |
| P3655-1G | 04061834372721 |
| P3655-10MG | 04061834372714 |
| P3655-500MG | 04061834372738 |
| P3655-100MG | 04061834372707 |
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Can I use Poly-L-ornithine hydrobromide for coating plats in order to grow cells?
1 answer-
This product is suitable for cell culture. Poly-L-ornithine hydrobromide is used for coating culture plates for cell culturing.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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For the product P3655-100MG Poly-L-ornithine hydrobromide, which solution I should use to dilute. what condition and how long I can storage after i dilute this compound.
1 answer-
This product is soluble in water up to 50 mg/mL. Solutions may be stored in aliquots at -20°C for at least 4 months. Avoid repeated freeze/thaw cycles. Please see the link below to review additional information available in the product datasheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/167/475/p3655pis.pdfHelpful?
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