Standard for the fluorometric determination of enzyme activity. Highly fluorescent in alkaline. Synonyms: 7-Hydroxy-4-methylcoumarin, 7-Hydroxy-4-methyl-2H-1-benzopyran-2-one, 7-Hydroxy-4-methyl-coumarin, 7-Hydroxy-4-methyl-2-chromenone, 7-Hydroxy-4-methyl-2-oxo-3-chromene, 7-Hydroxy-4-methyl-2H-1-benzopyran-2-one, NSC 19026, NSC 9408, Omega 127, Pilot 447, beta-Methylumbelliferone CAS No: 90-33-5 Molecular Formula: C10H8O3 Molecular Weight: 176.17 Purity (HPLC): 99% Appearance: Slight yellow to off-white crystalline powder Melting Point: 187-191C Residue on Ignition: 0.5% Water (Karl Fischer): 0.5% Related Substances: Total Impurities: 1% Solubility: 50mg/ml in MeOH, heated Storage and Stability: Store at 4C. Product is stable for 12 months from time of receipt.
Molecular Weight:
176.17
Purity:
99% (HPLC)
Form:
Slight yellow to off-white crystalline powder
CAS Number:
[90-33-5]
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