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
H24003
Umbelliferone
99%
Synonym(s):
7-Hydroxy-2H-1-benzopyran-2-one, 7-Hydroxycoumarin
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
10 g | Check Cart for Availability | $47.20 |
25 g | Check Cart for Availability | $86.90 |
100 g | Check Cart for Availability | $176.00 |
About This Item
$47.20
Quality Segment
assay
99%
mp
230 °C (dec.) (lit.)
solubility
dioxane: soluble, ethanol: soluble
SMILES string
Oc1ccc2C=CC(=O)Oc2c1
InChI
1S/C9H6O3/c10-7-3-1-6-2-4-9(11)12-8(6)5-7/h1-5,10H
InChI key
ORHBXUUXSCNDEV-UHFFFAOYSA-N
Application
- To synthesize fluorescent probes to detect cyanide anions in water at biological pH and for in vitro and in vivo detection of hydrogen peroxide.
- In the preparation of coumarin-based polymer as optical data storage material.
- As a precursor to synthesize novobiocin derivatives that exhibit antibacterial agents as well as inhibitors of DNA gyrase.
- As the starting material to synthesize (+)-decursinol and (+)-angelmarin.
1 of 1
This Item | |||
|---|---|---|---|
| assay 99% | assay ≥98.0% (HPLC) | assay ≥98.0% (HPLC) | assay ≥99.45% (HPLC) |
| solubility dioxane: soluble, ethanol: soluble | solubility dioxane: soluble, ethanol: soluble | solubility - | solubility 95% ethanol: 50 mg/mL, clear to slightly hazy, colorless to faintly yellow |
| mp 230 °C (dec.) (lit.) | mp 230 °C (dec.) (lit.), 230-234 °C | mp 230 °C (dec.) (lit.) | mp 88-90 °C (lit.) |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
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Storage Class
11 - Combustible Solids
ppe
dust mask type N95 (US), Eyeshields, Gloves
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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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