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4-Methylumbelliferone_Molecular_structure_CAS_90-33-5)
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4-Methylumbelliferone

Catalog No. 69580 Name Sigma Aldrich
CAS Number 90-33-5 Website http://www.sigmaaldrich.com
M. F. C10H8O3 Telephone 1-800-521-8956
M. W. 176.16872 Fax
Purity ≥98.0% (HPLC) Email
Storage Chembase ID: 4771

SYNONYMS

Title
4-甲基伞形酮
IUPAC name
7-hydroxy-4-methyl-2H-chromen-2-one
IUPAC Traditional name
4-methylumbelliferone
Synonyms
β-甲基伞形酮
7-羟基-4-甲基香豆素
4-MU
7-Hydroxy-4-methylcoumarin
β-Methylumbelliferone

DATABASE IDS

EC Number 201-986-7
MDL Number MFCD00006866
CAS Number 90-33-5
Beilstein Number 142217
PubChem SID 24885952

PROPERTIES

Empirical Formula (Hill Notation) C10H8O3
Grade for fluorescence
Purity ≥98.0% (HPLC)
Fluorescence λex 365 nm; λem 445 nm in methanol
Melting Point 185-190 °C
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H315-H319-H335
European Hazard Symbols Irritant Irritant (Xi)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements P261-P305 + P351 + P338
Risk Statements 36/37/38
RTECS GN7000000
Safety Statements 26
German water hazard class 2

DETAILS

Description (English)
Other Notes
Indicator for the determination of nitric acid. Used in 4-MU-O-substrates for the kinetic investigation of enzyme activity1
Description (简体中文)
Other Notes
硝酸测定指示剂。在 4-MU-O-底物中用于酶活性的动力学研究1

REFERENCES