Chemical Name: 4-Methylumbelliferone
CAS No.: 90-33-5
EC No.: 201-986-1
Molecular Formula: C10H8O3
Molecular Weight: 176.17
Appearance: White to off-white crystalline powder
Assay: 98.0% – 99.0% min
4-Methylumbelliferone CAS 90-33-5
Description
4-Methylumbelliferone Quick Details
Chemical Name: 4-Methylumbelliferone
Synonyms: 7-Hydroxy-4-methylcoumarin; Hymecromone; 7-Hydroxy-4-methyl-2H-chromen-2-one; Mendiaxon; hymechrome
CAS No.: 90-33-5
EC No.: 201-986-1
Molecular Formula: C10H8O3
Molecular Weight: 176.17
Appearance: White to off-white crystalline powder
Assay: 98.0% – 99.0% min
Choline Bitartrate Specification
| Item | Specifications |
| Appearance | White crystalline powder or granules |
| Assay (On Anhydrous Basis) | 98.0% – 101.0% |
| Identification (IR/Chemical) | Positive |
| Specific Rotation | +17.5 degrees to +18.5 degrees |
| Water Content (Karl Fischer) | 0.5% Max |
| Residue on Ignition | 0.1% Max |
| Heavy Metals (as Pb) | 10 ppm Max |
| Arsenic (As) | 2 ppm Max |
| Total Plate Count | 1000 cfu/g Max |
4-Methylumbelliferone Applications
Pharmaceutical raw material
Biomedical Research
Fluorescent Indicator and Substrate: Widely used in biochemistry and molecular biology as a fluorogenic substrate to detect and quantify enzyme activities, such as glucuronidase and phosphatase.
Cosmetic Ingredient: Incorporated into specialized skincare products for its potential skin-conditioning properties and as an optical brightener due to its blue fluorescence under ultraviolet light.
4-Methylumbelliferone Packaging & Shipping
Standard Packaging: 25 kg net per fiber drum with two polythene inner bags, or 1 kg aluminum foil bags for laboratory scale.
4-Methylumbelliferone Storage
Temperature: Store at room temperature (15 C to 25 C). For high-purity biochemical reagents, cooler storage (2 C to 8 C) is recommended to extend shelf life.