Difference between revisions of "Umbelliferone"
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7-hydroxycoumarin | 7-hydroxycoumarin | ||
| − | == | + | ==Risks== |
| − | + | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC121110250&productDescription=7-HYDROXYCOUMARIN%2C+99%25+25GR&vendorId=VN00032119&countryCode=US&language=en SDS] | |
| − | + | ==Physical and Chemical Properties== | |
| − | Used as a pH indicator for 6.5-8.9 (pKa=7.7) | + | * Yellowish-white crystals. |
| + | * Soluble in hot water, ethanol | ||
| + | * Absorbs strongly at 300, 305, 325 nm with blue fluorescence. | ||
| + | * Used as a pH indicator for 6.5-8.9 (pKa=7.7) | ||
{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 230 | + | | 230 C |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | * Wikipedia, | + | * Wikipedia,: http://en.wikipedia.org/wiki/Umbelliferone (Accessed Mar. 1, 2006) |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 09:12, 23 June 2022
Description
A fluorescent dye that occurs naturally in several plants such as carrot, coriander, and belladonna. Umbelliferone is used commercially in sunscreens and fluorescent dyes. It is also used as a fluorescence indicator for metal ions such as copper and calcium.
Synonyms and Related Terms
7-hydroxycoumarin
Risks
- ThermoFisher: SDS
Physical and Chemical Properties
- Yellowish-white crystals.
- Soluble in hot water, ethanol
- Absorbs strongly at 300, 305, 325 nm with blue fluorescence.
- Used as a pH indicator for 6.5-8.9 (pKa=7.7)
| Composition | C9H6O3 |
|---|---|
| CAS | 93-35-6 |
| Melting Point | 230 C |
| Molecular Weight | 162.14 |
Resources and Citations
- Wikipedia,: http://en.wikipedia.org/wiki/Umbelliferone (Accessed Mar. 1, 2006)